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43 commits

Author SHA1 Message Date
a03662438a slhdsa: the post-quantum signing path (deterministic, parameter-locked, additive)
Phase 2b+3 of the step-3 rehearsal, under the four operator decisions of
2026-08-06: deterministic signing, separate slh_dsa block, additive posture,
keygen executed same day (key in provider state, 0600, git-ignored — verified
before generation, not after).

src/pacta/slhdsa.py — the module that did not exist (register:
pq-slot-names-unproven-algorithm). Parameter set LOCKED to SLH-DSA-SHA2-128s:
every entry point asserts the key's reported algorithm and refuses anything
else, because any other set sits outside all eleven certificates while looking
like dogfood. Deterministic via -pkeyopt deterministic:1, so the byte-level
reproducibility check that caught a real defect on the Ed25519 side survives
here. Verification runs two ways: OpenSSL, and pacta-verify-slhdsa built from
the pinned proven source — the one signature check in the estate performed by
code whose verify path the certificates cover. The proven-verifier path is
package-anchored, not cwd-relative: the lesson of signer-backend-depends-on-cwd
applied on day one, not retrofitted.

make_signed_tree_head grows optional slhdsa key parameters. With them, the head
carries a signed slh_dsa block; without, an honest not-configured slot exactly
as ml_dsa always has. ml_dsa itself is untouched. Signatures stay outside the
signed payload for both algorithms — tested by asserting the payload is
byte-identical with and without the slh_dsa key.

Honesty carried in the artifact: signing_backend says "openssl" because no
proven signer exists for any algorithm; the module docstring states that
nothing here is Lean-proven and that the certificates cover the verify path of
the extracted model only.

Tests: 7 new, suite 152 passed, 0 failed, 0 skipped — including determinism
(two signings, identical bytes), the foreign-key refusal (Ed25519 key raises),
corruption rejected by both verifiers, and the proven/OpenSSL agreement.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-06 22:03:39 +02:00
ddbb5a4fd8 fix(verify_consistency): restore RFC 9162 Step-7 terminal sn==0 check
The deployed consistency verifier implemented the RFC 9162 2.1.4.2
bit-navigation loop but its final return checked only the two
reconstructed roots, omitting the terminal condition that the new-size
navigation counter reach zero. That condition couples the consumed proof
length to the claimed tree sizes; without it, a valid proof for one
transition verifies under a lied (power-of-two) old size. Flagship: a
valid 2->3 proof is accepted under the false claim 1->3 with the size-2
root.

Fix: add `and sn == 0` to the final return.

This is the corpus's Known Gap 14 (3,867 deployed-accepts-only cases in a
pinned 73,573-case family, recorded in public log entry 13). It was
found by the project's own differential harness; a post-appeal review
round added a faithful RFC oracle as a third comparison, which showed
the deployed verifier — not the mechanized model — was the one deviating
from RFC 9162, and traced it to the missing terminal check.

Scope: verify_consistency's only production caller is the consumer-side
pin store, reached only behind a verified head signature. Generation is
RFC-correct and unaffected; the live provider service does not run this
verifier; the published standalone verify.py has no consistency verifier.
An empirical search found 0 realizable pin-advance poisons against an
honestly pinned consumer, consistent with Known Gap 14's non-claim.

Verification:
- New fail-first three-way regression test
  test_consistency_lied_size_three_way_agreement (deployed / recursive
  ConsRec model / independent faithful RFC 9162 transliteration) over the
  honest AND lied-size families; fails pre-fix, passes post-fix.
- Historical differential tests (164,479 inclusion; 164,224 consistency)
  unchanged — the fix rejects nothing honest.
- Full suite: 145 passed, 0 failed.

Public log entry 13, the attested accumulator commit, and the IACR
submission PDF are all unchanged. Vulnerable state tagged
vulnerable/sn0-consistency-fd2f6ba. See
docs/security-2026-07-23-consistency-terminal-check.md.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-23 18:34:23 +02:00
fd2f6baa36 estate: the SLH-DSA (FIPS 205) campaign enters the map — two new entities
Two repos joined the estate on 2026-07-22; both renderings (ESTATE.md +
cockpit /estate) gain their cards, with every fact recomputed from the
repos themselves:

- fips205-source (upstream lane): verbatim snapshot of
  integritychain/fips205 (pure-Rust FIPS 205 / SLH-DSA), upstream pin
  30bac08, snapshot head 5dca0db — single deviation: upstream CI
  workflows stripped, documented in-commit. Aeneas-compat patches land
  there as transparent, individually-justified commits; nothing is
  proposed upstream.
- fips205-slhdsa-verified (subject lane): SLH-DSA-SHA2-128s verify-path
  campaign, marked exactly as its own check.sh says — CAMPAIGN IN
  PROGRESS, zero certificates, non-green by design. NOT attested; the
  map does not imply otherwise.

Also:
- liveness board now probes fips205-slhdsa-verified (a sibling under
  the default repos root). fips205-source is deliberately NOT probed:
  the upstream-source shelf lives outside that root, like the five
  existing source clones (comment documents the decision).
- drift tripwire (test_estate_view_and_estate_md_do_not_drift) extended
  with both new sentinel names.
- stale fact chip refreshed in both renderings: pacta suite 135 → 144
  green (the suite grew during the cockpit era; chip was never bumped).
- estateview's pasta dossier no longer calls the curve layer "the one
  open verification task in the estate" — the campaign is a second.

Suite 144 green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-22 22:02:39 +02:00
37429335e6 docs: coherence + portability audit — clean-clone bootstrap proven
Audit question: is the documentation coherent, and is the app portable
to a fresh machine (macOS) with proper isolation? Findings and fixes:

- README never mentioned the cockpit/deck/lab manual (three rounds of UI
  evolution invisible at the front door). Added: human-surface section
  with the one command, expanded Install (editable-from-clone is the
  supported mode — repo files are part of the product; zero-install
  PYTHONPATH=src alternative; fresh-machine skip behavior), macOS
  openssl/LibreSSL Ed25519 prerequisite with a one-line self-check,
  wallet commands in the command list.
- The lab manual violated the repo's own macOS law (AGENTS.md): GNU
  sha256sum -> shasum -a 256; GNU sed -i -> portable python3 -c
  one-liner (executed and output-matched before shipping: entry 0 hash
  mismatch, BROKEN, exit 1).
- Fresh-clone bootstrap was actually tested end to end in a scratch
  clone: zero-install suite 130 passed / 0 failed / 14 skipped after
  fixing the one unguarded test (test_ledger_is_hash_chained now skips
  like its siblings when the dogfood binary is absent - capability gap,
  not failure); venv + pip install -e . -> pacta console script serves
  bridge/deck/manual/sample-prefill/drift-tripwire with no PYTHONPATH.
- PYTHONPATH incantations simplified: cockpit needs src only (provider
  never imported by src/pacta); manual + cockpit.md updated.
- threat-model.md: cockpit attack-surface note (no mutating routes,
  no auth because nothing to operate, localhost-only disclosure risk,
  probe-only network I/O, fake-cockpit = host-compromise boundary).
- products.md: cockpit named as the shared human surface of all four
  profiles. AGENTS.md: doc-portability law + the cockpit's three laws
  added to the standing guidance.

Suite 144 green here; 130/0/14 on a bare clone.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 18:00:08 +02:00
1d712a884a cockpit: the lab manual — a study-club course in six chairs (/manual)
Operator asked for a real big fat user manual: read on one monitor with
the deck on the other, worked like a lab from beginning to end, with
highest didactical skill — the goal being to educate ONE person in ALL
roles, as if to BECOME each role. Shipped as a full course:

- docs/warden-lab-manual.md (canonical, ~7100 words): 8 sessions +
  capstone. Fixed didactic ritual per role-session: why the role exists
  -> the mind of the role -> concepts -> LAB (numbered machine exercises
  with checkpoint rails) -> never-list with whys + thought experiment ->
  handoff artifact -> self-test -> recap card. Notation: do / checkpoint
  / write / optional. Capstone 'incident day': one incident walked
  through all six chairs producing seven written artifacts; graduation
  session maps the path to a real wallet; Appendix A command reference
  by chair, Appendix B full self-test answers.
- Session 4's tamper drill: copy the demo wallet, flip one character of
  ledger history, watch verify-ledger AND a second cockpit catch it.
  Every checkpoint in the manual was executed by the author before
  commit: status fields, intact-chain exit 0, tampered-chain 'entry 0:
  hash mismatch / BROKEN' exit 1, CUSTODY EVIDENCE BROKEN banner.
- src/pacta/mdlite.py: deliberately small stdlib Markdown renderer
  (headings/anchors+TOC, bold/italic/code with placeholder stashing,
  fences, lists, quotes, tables, links); tested against the real manual
  for zero artifact leaks.
- /manual route with syllabus TOC; manual typography (checkpoint boxes,
  session borders); nav tab, deck wizard cross-link, cli hint.

Suite 142 -> 144 green; read-only sweep covers /manual.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 17:26:09 +02:00
15421ac4d0 cockpit: the deck — tmux-style pane grid + the color-camouflaged wizard
Operator asked for a tmux-type panes grid in the browser (one pane per
role, all acting in parallel, like real life) with a wizard on the right
that takes a newcomer by the hand through every role's actions, each
instruction camouflaged in that role's color.

- /deck: CSS-grid of six live panes (2-col, 3-col on wide screens),
  one per station, each an iframe onto /station/<id>?pane=1. tmux
  controls per pane: reload, single-pane zoom, open-full. Narrow
  screens: wizard first, panes stacked.
- pane mode (?pane=1): chrome-stripped shell (no h1/banner/nav), same
  station content, READ-ONLY label kept; an 8-line shim re-carries
  pane=1 on every same-origin link and form submit, so probes, incident
  browsing, and inspect verdicts all happen inside the pane.
- the wizard: a 10-step guided first watch across all six roles on the
  live demo wallet. Each step card wears the role's hue with a 'YOU ARE
  THE <ROLE>' chip, the matching pane glows, and every step states what
  success looks like + what was just learned. Step remembered per
  session (sessionStorage).
- /inspect?sample=1 pre-fills examples/wallet-evidence so the
  cryptographer step verifies (then deliberately breaks) real evidence.
- verified in a real browser: step navigation moves the glow, panes
  load their stations, Probe-now inside the pane probed live inside the
  pane (log head tree_size 13), sample flow prefilled the key in-pane.

Suite 139 -> 142 green. Read-only guarantee unchanged; byte sweep
covers /deck and pane routes.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 17:04:23 +02:00
a18877612d cockpit: the bridge — six role stations, the crew law, live liveness
Operator verdict on round two: better, but 'still no coherent
application'. The cockpit must provide everything a human crew would
need if no AI were around — as distinct roles that cooperate through
handoffs and never melt into each other. This rebuilds the IA as a
bridge with six stations over shared instruments, in the control-room
tradition (overview -> station -> instrument -> raw files/CLI), with
maker-checker separation of duties encoded in the UI itself.

- / is now the Bridge: whole-system verdict strip, six crew cards with
  live data, and the dispatch (andon) board 'if this happens, who acts'
- /station/{proposer,quorum,operator,cryptographer,architect,newcomer}:
  each console has a fixed anatomy: Mission -> Duties (every duty a
  runnable, verified-real CLI command - the no-AI drill) -> embedded
  live instruments -> 'This station never...' (separation of duties) ->
  Handoffs (receives/delivers)
- Operator gets a real liveness board: on-demand parallel probes (HTTP
  GET on log head/paper/blog/mirror with observed facts + latency; git
  HEAD/cleanliness on all 9 local repos). Never probes on ordinary page
  loads. Verified live: caught this very repo as 'alive, dirty' while
  building it, and confirmed log 13/3488a2d0 + paper 7f140356
- Architect gets the live drift tripwire (ESTATE.md vs estate view)
- modularized per the standing separation-of-concerns order:
  uikit.py (primitives+style), stations.py (role model, pure),
  liveness.py (probes), walletui.py (collectors, instruments, routes)
- crew law test-enforced: bridge crew+dispatch, per-station role
  contract, station distinctness (signature phrases must not bleed
  across roles), explicit-probe semantics; read-only byte sweep now
  covers all 13 routes incl. the probe route
- narrow-viewport fix: breakany for unbreakable paths in headings

Suite 135 -> 139 green. Read-only guarantee unchanged: no mutating
routes; every custody act is a printed command, never a button.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 16:47:43 +02:00
00be6a396e cockpit: UX law — the cockpit never leaves a human in the dark
Operator verdict on the first cockpit: unusable, jargon-walled. The
evidence layer was honest but the presentation assumed the reader
already lived inside warden's head. This rebuilds the presentation
layer around a testable UX contract, additive to the design law:

- every page: verdict IN WORDS first (CUSTODY HEALTHY / CUSTODY FROZEN
  (LATCHED) / CUSTODY EVIDENCE BROKEN), then evidence, then provenance
- every page: plain-language lead saying what the page answers
- every panel: 'How to read this panel' expander interpreting every
  column and pill; jargon carries a ? linking to the glossary
- new /guide view: what warden is, how to read any page, color code,
  five-minute tour, 12-term glossary, honest 'what this cockpit cannot
  tell you'
- navigation: two-line tabs stating the question each view answers,
  present on every page; /estate gets a back-to-cockpit chip
- explained empty states (incidents: 'empty is the good state')
- narrow-viewport fix: tables/pre scroll in their own containers
- estate fact chip updated 130->135 green (both renderings)

UX contract is test-enforced (guide terms, lead+nav+explainers on every
view, empty states); read-only byte-guarantee sweep now covers /guide.
Verified by looking: served --demo, walked all six views in a browser.
Suite 131 -> 135 green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 16:15:00 +02:00
b3239dba45 cockpit: --demo flag — one command from zero, custody-inert
The operator ran the documented command and hit the fail-fast (no
wallet exists on a fresh machine) — correct behavior, useless
instruction. seal_demo_wallet() now seals a throwaway DEMO wallet
(fake shell-stub members, DEMO-labeled fields, temp dir named
warden-DEMO-*, sample incident/refusal/airgap so every view has
content); 'pacta wallet cockpit --demo' serves it. Exactly one of
--wallet/--demo required. Verified by running the literal command:
all five views 200, demo quorum renders. Suite 130 -> 131.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-21 15:09:26 +02:00
1acbaa1a76 cockpit: estate map as a fifth view, with RUNTIME as a first-class dimension
Operator questions answered in code: (1) the estate map now lives IN the
cockpit too — /estate serves the interactive map (lanes, typed edges,
loops, clickable dossiers) to the same human audience the cockpit
serves; ESTATE.md remains the canonical committed version (renders on
GitHub, reachable by agents via llms.txt, needs no running process), and
a name-level sync test guards drift between the two renderings — the
published_assets lesson applied preemptively. (2) 'What is RUNNING?' is
now answered everywhere: an operations strip on the map (ALWAYS ON:
caddy + the LTL read-only container + Forgejo with its single 03:00
mirror cron, all droplet; ON-DEMAND: append/publish/sign ceremonies,
cockpit, MCP, operator machine only; NOT RUNNING: warden — prototype,
no deployed instance, no funds watched; everything else: static files
or external parties), a per-entity Runtime line in every dossier, and a
verified What-is-running table in ESTATE.md (container commands, :ro
mounts and read_only:true on the LTL service, and the crontab checked
on the droplet 2026-07-20, not recalled).

Suite 128 -> 130 (estate route + drift guard). Local-only as before:
nothing deployed, live estate untouched.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-20 10:58:59 +02:00
dcb48f453e warden cockpit: local read-only custody UI for the human operator
Operator-ordered milestone, built under an explicit no-risk constraint
while the paper application is in flight: strictly ADDITIVE (one new
module + one CLI subcommand; zero changes to wallet semantics, the
public site, or anything the paper describes), LOCAL-ONLY (never
deployed; binds 127.0.0.1), and READ-ONLY in v1 (human approve/deny is
deliberately deferred — that is a custody-semantics change belonging to
a separately reviewed milestone).

New: src/pacta/walletui.py — four views over an existing wallet:
- Posture: latch state, ledger head with FULL hash-chain
  re-verification, pinned quorum members, spending policy verbatim.
- Signature queue: airgap outbox/inbox, observed never operated.
- Incidents & refusals: verbatim records, newest first.
- Receipt inspector: paste attestation + receipt + log key; verdict,
  per-signature results, and diagnostics come verbatim from
  transparency.verify_receipt — the deployed verifier itself, reused
  not reimplemented.

Design law, stated in the module and enforced by tests: THE COCKPIT
RENDERS EVIDENCE, IT NEVER ASSERTS IT. Every panel recomputes at
request time and carries a provenance line (function + timestamp);
anything unverifiable renders a loud FAILED-TO-VERIFY panel — no cached
green, no neutral gray. Panels state what they do NOT prove (e.g.
binary pinning vs source-to-binary correspondence).

CLI: pacta wallet cockpit --wallet DIR [--host --port].
Tests (10 new, suite 118 -> 128 green): recomputed-evidence rendering,
CHAIN BROKEN on tampered ledger, loud failure on collector error,
latched-state rendering, airgap queue states, verbatim incident/refusal
rendering, fail-closed inspector on garbage, real-evidence roundtrip
(skips if example evidence absent), full-sweep BYTE-LEVEL read-only
guarantee (wallet dir hash-identical after all GETs + a POST), and
fail-fast on non-wallet dirs. Rendering additionally verified visually
against a live demo wallet (posture, quorum table, incidents).

Docs: docs/cockpit.md; WALLET.md section; ESTATE.md + llms.txt updated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 18:02:17 +02:00
2587cc018b publish assets: sync the fail-open time bomb; llms/course/test docs refreshed (doc audit 2026-07-19)
REAL DEFECT found by the operator-ordered doc-freshness audit:
published_assets.py still carried the PRE-HARDENING fail-open verify.py
and the pre-Tier-2 README as the templates that log-publish drops into
the mirror — the next publish would have silently overwritten the
round-13-hardened fail-closed verifier and the corrected README with
the old versions. Fixed:
- published_assets.py regenerated from the canonical mirror files
  (byte-identity verified by round-trip exec), now also carrying
  verify_selftest.py; SYNC RULE documented in the module docstring.
- transparency_log.publish() now writes verify_selftest.py too.
- NEW tests/test_published_assets.py pins the security-critical markers
  (fail-closed FATAL, RECEIPT_TYPE, verify_receipt, --all receipt
  coverage, required fingerprint) so template drift fails CI instead of
  shipping.
- test_web_and_witness updated to the hardened verifier's markers —
  the published test log now passes FULL signature mode end to end
  ('RESULT: OK [full]'), a stronger assertion than the old string.

Doc refresh in the same pass:
- llms.txt: thirteen leaves + entry-13 self-attestation + fail-closed
  verifier; paper line -> new title, 23 pages, v0.2/v0.1 archives.
- Course (generator + generated 06b notebook): 'the git hash IS the
  content hash' -> 'the commit pins the exact source tree';
  'irrevocably part of the log every other agent sees' -> 'committed to
  the log's signed view, which any agent can compare' (the two Tier-2
  scope corrections had never reached the teaching material).
- test_paper_verifiers.py docstring rescoped: its 164k counts are the
  archived v0.2 report's citation; the current paper cites the corpus
  harness and makes no extensional-equality claim.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-19 13:10:55 +02:00
d937a94382 fix: the attestation LEAF now carries its own scope block (review round 6)
Found by the entry-13 12->13 rehearsal: build_attestation emitted
subject/environment/replay/certificates but NO scope — the profile's
guarantees/exclusions/deployment_constraints (which carry a repo's
known_status scoped-claim wording and known_exclusions) reached only
the claim card, never the published leaf. So the round-6 requirement
that entry 13's LEAF carry its scoped attestation text was unmet by the
code; a reviewer who checked the claim card saw the wording that the
leaf did not contain. Added a 'scope' block
(guarantees/exclusions/deployment_constraints) to the leaf; pure text,
safe to publish, validator is additive. Two provider tests assert the
block exists and that a repo's known_status/known_exclusions reach it.
Suite 115 passed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 15:25:19 +02:00
87ef2a1056 fix: fail-closed certificate classification + record-scoped axiom parsing (review round 6)
R6-B1 (Claude, executed end-to-end): provenness was decided by a
WHOLE-OUTPUT 'no axioms' sentence, so an axiom-free certificate whose
line was entirely absent still scored proven+clean ([]==[]). The
reviewer drove a doctored 60-line output through the real gate and got
61/61 with domsep never audited. Classification is now extracted into
classify_certificates(): proven iff the certificate's OWN anchor was
parsed (axiom-free anchors populate []); absent certs are
unknown/failed + not_checked — never clean. This also fail-closes the
typo'd-future-cert case (R6-C2).

GPT §6: parse_axiom_output is now RECORD-scoped — anchors delimit
records, a cone bracket is accepted only inside its own record, missing
or truncated brackets yield MISSING (fail closed) instead of borrowing
the next certificate's bracket, and cones may wrap arbitrarily (the
old fixed 16-line window was a latent overflow for the 11-axiom
ed25519 apex cones on this estate). Anchor names are captured between
the exact quotes Lean prints.

Six new regression tests (absent-axiom-free-not-clean, missing-bracket
no-steal, truncated cone, >16-line wrap, duplicate anchor, interleaved
diagnostics). Suite: 114 passed / 0 failed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 15:15:58 +02:00
34a04572f0 fix: axiom-output parser mis-attributed cones to axiom-free certificates
Found by the entry-13 rehearsal (the accumulator corpus is the first
subject with axiom-free certificates — every fork certificate carries
at least the boundary axiom, so this path was never exercised):

- an axiom-free certificate ('X' does not depend on any axioms) was
  parsed by opening a 16-line window and taking the first bracket in
  it — which belongs to the NEXT certificate. domsep/Hash/
  instDecidableEqHash/take_append_drop were reported with their
  neighbors' cones and flagged dirty.
- certificate names were matched as bare substrings, so 'Foo' could
  anchor on the line for 'Foo_bar'. Now anchored on the exact quoted
  name Lean prints.

The no-axioms decision is now made on the anchor line itself, before
any window. Two regression tests added (steal-next-cone, exact-name);
suite 108 passed / 0 failed.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-16 11:04:59 +02:00
2dae2ca0db audit v3: paper-reality congruence + external-pointer integrity (Fable-5 Socratic pass)
Two Fable-5 inventory agents cross-checked every empirical claim in the
paper against code/deployed log, and every external pointer against the
live internet. Fixes on both sides:

CODE (system brought up to the paper's claims):
- SECURITY: pin-store mutation (incl. permanent poisoning) was reachable
  via receipts whose head signature FAILED verification in two of three
  consumer paths (attestation.py, cli.py) - an unauthenticated forged
  head at the pinned size could poison a consumer's pin forever and
  pollute the equivocation-evidence pair with an unverifiable head,
  contradicting SS5.4's 'validly signed' precondition and Prop 1.
  Both paths now gate the store on a verified Ed25519 head signature
  (logclient.py already did). Regression test added.
- Prop 2 made literally true: _normalize_certificate now derives the
  cleanliness verdict purely from (observed cone, local allowed set) in
  EVERY branch; the operator's axiom_status label is never copied (was
  passed through for non-proven certs), missing cone => unverifiable
  always. Labels can deny, never grant. Test added.
- webdocs: '/v1/sth-history: every head ever signed' -> 'the published
  head history'.

PAPER (claims brought down to reality):
- 'every head ever signed' -> the signed head history since publication
  began (heads for sizes 1-7 predate the mirror and were not retained).
- Run-3 bullet: 'independently checkable by diffing the two commit
  trees' was no longer reproducible (pre-rewrite objects discarded);
  now states the log-internal corroboration (identical cert lists and
  cones across leaves 4-7 vs 8-11) and that tree diffs are not public.
- Appendix A leaf block now actually verbatim: scheme
  openssl-ed25519, verified_backend serial/u64, real Lean version
  (4.30.0-rc2) instead of 4.x.y placeholder, leaf's actual axiom order
  (finalize/new/update), machine_protection note quoted, elisions
  marked; preamble wording matches.
- Appendix C upstream boundary reordered to check.sh's verbatim order.
- '27 lines - all annotation' -> honest description (axiom-list entries
  + operation reordering from one fork's black_box barrier).
- Prop 2 proof + App A: status label consulted only negatively.
- SS7: provenance fields noted as outside the signed payload; consumer
  chain relies on none of them.
- Bibliography: all 20 entries verified against DBLP/RFC-editor - zero
  errors; added missing page numbers to 6 entries; thebibliography
  width 19->20. All URLs verified public; no PlanetMacro leakage.

17 pages, 106 tests green, accumulator untouched (tree_size 12).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 21:33:28 +02:00
3700ed8a90 paper: Fable-5 rigor re-audit of the depth pass — fix 3 real defects
Re-auditing the prior (Opus-produced) depth pass adversarially found and
fixed three genuine issues:

1. OVERCLAIM (serious): §5.3 said the consistency verifier was
   differential-tested 'on all (n0,n1) with n1<=256' but the script only
   SAMPLED sizes (5,508 cases). Ran the genuinely exhaustive test — all
   1<=n0<=n1<=256, honest + 4 mutations — 164,224 invocations, and the
   inclusion verifier likewise (164,479). Paper now states the true scope
   and counts; both are pinned in a new CI test (test_paper_verifiers.py,
   104 tests) so the numbers cannot rot.
2. PROOF IMPRECISION: Lemma 2 (Root binding) was applied to ConsRec's
   first component, which PASSES THROUGH (no hnode) at some levels and so
   is not the hash-fold the lemma needs. Reworked: Lemma 2 now defined
   over 'hash-folds' only; Theorem 3 restructured into 3 clean steps that
   put only the full-hashing second component through the lemma, then
   argue algebraically + one honest-tree collision. Also hoisted Lemma 2
   above Theorem 2 and made Theorem 2 invoke it (was inlined), so the
   'two theorems share the lemma' remark is now true; deduped the remark.
3. MISLABELED TABLE: Table 1's 'files vs upstream' column actually held
   line-diffs against different baselines. Dropped it for clean comparable
   columns (files / apex axioms / SHA-512 shape); the diff story stays in
   the portability paragraph where each baseline is named.

17 pages, all refs resolve, 104 tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 19:46:11 +02:00
c6b46d5505 remove the pseudonymous paper entirely; fix stale v1-era surfaces (Fable 5 audit)
Removal (user decision): paper/ltl-v0.0.{tex,pdf} deleted; /paper/v0.0
route removed; test now asserts 404 for it; /paper/v0.1 stays for
citability and is linked from the docs card.

Audit findings from re-reviewing the last session's work, all fixed:
- Appendix A claimed 'all other fields are verbatim' over elided
  placeholder values - reworded to state exactly what is elided vs
  verbatim (a paper about exactness cannot say verbatim over an ellipsis)
- LTL docs paper card still described the 4-page v1 (old title, old
  scope) - now the revised title, 14 pages, proofs summary, v0.1 link
- llms.txt paper line updated to the revised title
- paper/eprint-submission.md rewritten as the RESUBMISSION kit: new
  title/abstract, message-to-editors change note, form-not-email
  guidance, author-only checklist

102 tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 18:18:27 +02:00
ba1c739a0e paper v2 canonical + versioned hosting; pin-store proposition now true
Paper:
- v2 (12->14pp: appendices) promoted to paper/ltl.tex; v1 kept as
  ltl-v0.1.tex, pseudonymous variant as ltl-v0.0.tex (identity-clean)
- filled from verified artifacts: App C (3 verbatim per-fork boundaries:
  dalek 11 / hash3 8 / anza 7), App D (real 4-tier ladder + parser
  hypotheses; the other agent's 'Tier 3/4' guess corrected), App A (real
  leaf 8 structure); §8 now twelve leaves / three runs incl. the
  history-rewrite absorption (a live G2 demonstration); §7 self-check
  index 4->8; Limitations count fixed; two overfull math displays fixed
- title/author/ORCID unchanged from the revision

Hosting: web.py serves /paper (current), /paper/v0.1 (prior named),
/paper/v0.0 (pseudonymous) - older versions unlisted in the endpoint
index; test added.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 18:02:59 +02:00
1a7d377c6b sthstore: equivocation poisons the pin + retains transferable evidence
Makes the paper's pin-store safety proposition true in the deployed code:
- the full signed STH is retained at pin and at each advance (not just
  size+root), so on equivocation both conflicting heads are transferable,
  signature-verifiable evidence;
- any equivocation (same-size root mismatch, or a consistency anchor
  disagreeing with the pin) persists poisoned=true with both signed
  heads and refuses ALL further operations for that log, restart-proof
  and independent of the update flag;
- rollback unchanged. 102 tests (was 100): poison persistence, evidence
  transferability, full-head retention.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-09 17:53:13 +02:00
ea80c99244 curriculum: lecture 11 - the customer's-eye view (requirements card, wish-meets-supply, grow-the-supply)
Consolidates the consumer-side trust framing that was scattered across
notebooks 05/06b and WALLET.md into one on-ramp: the allowed-axioms list
as a requirements card you own and can write yourself; measurement vs
publication vs judgment (operator/log/you); the three honest outcomes
when your card is stricter than the supply (relax itemized / walk away /
grow the supply). Executable: a self-written card is shown to equal the
real APEX_BOUNDARIES cone exactly (supply == wish: True), and a strict
no-oracle card is REFUSED with the real SHA-512/wire gap itemized.
Registered in course map + notebook test; 101 tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 22:16:05 +02:00
920485eb83 web: unlisted operator-dropped documents from <log>/site/
Generic mechanism: bare-name PDFs placed in the log directory's site/
folder are served by name, checked LAST in the route chain (can never
shadow an API route), traversal-safe, noindex, and deliberately absent
from the endpoint index and the docs page - the operator decides who
receives a link. Tested: serve, unlisted-in-404, traversal rejected.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 14:17:39 +02:00
65772b3d2e warden hardening round: policy engine, ledger rotation, MCP UX, treasury LIVE, ops docs
Tier 2:
- request_signature decomposed into named gates (latch, freshness,
  intent, policy, signer, firewall)
- ledger: O(1) tail-read appends under a dedicated lock file (survives
  rotation rename); hash-chained segment rotation at policy
  ledger.rotate_at; verify-ledger walks all segments to genesis;
  archive tampering detected (tested)
- docs/threat-model.md (attacker matrix 1-9, proven-vs-trusted, design
  invariants) + docs/runbook-latch.md (diagnose-first recovery)
- lecture 10: executable corrupt-a-member exercise (capsule pin catches
  one appended byte), honest note on what the pin does NOT stop

Lightweight policy engine (POLICY_DENIED wired):
- policy.json: per-request/per-day amount ceilings, counterparty
  allow/deny lists, per-identity overrides; rules make their intent
  fields mandatory; daily sums from the ledger
-

Agent UX:
- signed refusal receipts travel inside MCP errors (receipt +
  receipt_path in structuredContent)
- airgap over MCP: request_signature signer=airgap + request_id,
  new airgap_pending tool; park -> list -> device answers -> complete
  (tested end-to-end)
- all 8 tools carry readOnly/destructive annotations
- sliding-window rate limiter per tool class (custody/verify/liveness);
  RATE_LIMITED refusal code; surface control, not ledgered

warden-treasury LIVE:
- treasury.py: stdlib base58, compact-u16, legacy+v0 wire parsing;
  every required signature quorum-verified over exact message bytes;
  completeness gap named in every verdict; RPC fetch uses response as
  bytes only
-
- live-quorum test: synthetic Solana tx signed with wallet key ->
  authentic via 4 proven forks; flipped byte -> not authentic

100 tests green (was 85).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 13:38:42 +02:00
3aa8d4b2bf LTL front page: display the trust anchor in full, above the fold
The provider public key is the one thing a consumer takes on trust;
hiding it behind /log-public-key inverted the page's priorities. New
'The trust anchor - pin this key' section at the top of the docs page
shows the PEM in full with its SHA-256 fingerprint, the mirror-compare
instruction, and the raw endpoint for scripts. Honest 'missing' card if
a deployment lacks the key. Test asserts the page renders the key.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 09:45:35 +02:00
be9a39cd2b paper rigor pass: fix three claims that failed verification; serve the trust anchor
Socratic audit findings, all verified against artifacts:
- 'zero lines between structurally identical forks' was FALSE: risc0 vs
  betrusted differ by 27 lines (all annotation, documenting the risc0
  fork's black_box trusted-base entry). Corrected to the true number.
- '~64 Lean files per fork' over-rounded anza's 58. Now '58-64'.
- completeness parenthetical now states both hypotheses (a=-1 square, d
  non-square), not just d.
- 'key published in two independent locations' was ASPIRATIONAL: the
  site served only a fingerprint. New /log-public-key endpoint serves
  the key bytes; docs-page artifact-1 row links both copies; test added.
Verified exactly and kept: 215-line parser diff (FromBytesSpec), 121-line
signature-glue diff (SigApexSpec), byte-identical x4 math files incl. the
carry-telescope file, 11-axiom upstream boundary, 16 certs/leaf, 153-line
mirror verifier, leaf fields (toolchain + machine_protection), all 17 refs.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 09:28:55 +02:00
a7cc3d2a5f warden re-audit (Fable 5): fix ledger race, quorum perf, small-order honesty
Correctness:
- ledger: single-flight fcntl lock over read-modify-append + fsync. Two
  concurrent writers previously could fork the hash chain (read same tail,
  same prev_hash). New test races 8 threads x6 appends; chain stays intact
  with contiguous indices.
- small-order list: the order-8 encodings were hand-typed and unverifiable
  and diverged from the canonical libsodium blocklist. A BOGUS entry is the
  only dangerous direction (it down-grades a real tamper to a note, skipping
  the latch), so the list is now the certain-low-order set only (y in
  {0,1,-1}, reduced/non-reduced, both sign bits); order-8 edges escalate to
  tamper until a derived list lands. Fail-safe asymmetry documented + tested.
- freshness: removed a tautological .

Non-functional:
- quorum members now run concurrently (ThreadPoolExecutor): a verify costs
  one member's latency, not the sum (~17ms for 4 members, live).
- Wallet.quorum() memoized per state_dir: binary swap-detection hashes run
  once at assembly, not on every verify; documented rationale.

85 tests green; live 4-fork wallet re-verified end-to-end.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-07 08:24:51 +02:00
ba47aa435d warden docs + study material: WALLET.md, products lineup, llms.txt, lecture 10
- WALLET.md: the product manual (one idea, trust posture table, R4 gate,
  quickstart, MCP surface, self-proving card, firewall, taxonomy)
- docs/products.md: four production-ready deployment profiles
  (solo/airgap/treasury/choir) with honest built-vs-wired boundaries
- llms.txt: agent-native discovery manifest at repo root
- README: warden intro + lecture 10 pointer
- notebooks/10_verified_custody_wallet.ipynb: ratchet-rule lecture (toy
  3-of-3 -> real four proven forks -> counterparty recomputes a card's
  inclusion proof); course README + notebook test updated
- 83 tests green

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 23:46:27 +02:00
9a9b4ff084 warden tests: quorum taxonomy, wallet firewall/ledger/latch, MCP surface (83 passing)
- test_quorum: unanimity, semantic-edge vs unexplained/tamper, edge
  flags, min-members, live 4-fork integration
- test_wallet: hash-chained ledger + tamper detection, firewall release,
  quarantine+latch, unlatch notes, malformed/unbound intent, binary-hash
  pin, airgap park-then-complete, live R4 init against bundled evidence
- test_walletmcp: JSON-RPC plumbing, strict schemas, structured errors,
  self-proving card shape, live sign+verify roundtrip
- examples/wallet-evidence: the 4 live attestations+receipts+log key,
  bundled so the R4-init showcase runs offline

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 23:40:35 +02:00
9acb078844 Serve the paper at /paper; witness mirror must be independently operated
- web.py: /paper (and /paper/ltl.pdf) serve the committed PDF, loaded
  once at startup from the repo checkout; listed in the 404 endpoint
  index; covered by the web roundtrip test
- docs page: 'The paper' card linking the PDF
- DEPLOY.md: the second witness mirror belongs on a host the operator
  does NOT control (a self-hosted mirror adds no equivocation defense)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 19:44:06 +02:00
47dfb61a7f Move the log service to ltl.zkdefi.org (root path); keep path-mount support
- serve/webdocs/cli default to base_path='' (own subdomain, root serving)
- webdocs link builder handles the empty base like web.py already did
- all docs, paper, notebook 06b, and published-mirror README point at
  https://ltl.zkdefi.org; DEPLOY.md rewritten for subdomain + redirect
- tests: root mount is the production shape; one test keeps exercising
  the path-mounted variant

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 19:14:52 +02:00
fbe40c3dfe The log goes public: git-published mirror, online service, witnesses
Three synchronized faces of one log - transport orthogonal to trust:

- PUBLISHED GIT MIRROR: log-publish exports the public face (one file
  per leaf so git history mirrors log history; the FULL STH history as
  the witness channel; per-component attestations + receipts; the
  provider public key; a standalone stdlib-only verify.py and customer
  README). Live at github.com/saymrwulf/lean-transparency-log (genesis:
  8 leaves incl. the honest failed-run entries, dogfood-signed head).
- ONLINE SERVICE (pacta_provider serve): read-only, zero-dependency
  HTTP with CT-style endpoints under a base path for
  zkdefi.org/lean-transparency-log - /v1/sth, /v1/sth-history,
  /v1/sth-consistency?first=N, /v1/proof, /v1/attestation, /v1/entries,
  /v1/metadata, /healthz - plus self-contained customer documentation
  at /docs (current state, attested components, API, the verify-
  without-trusting-this-site path, and the means/does-NOT-mean
  boundary). The process never loads private keys: heads are signed
  offline; a compromised server can withhold or replay (pinning +
  freshness detect both) but never forge. STH history now recorded
  append-only by the provider (with a backfill head signed for the
  existing log).
- AGENT ONLINE CLIENT: pacta log-fetch (download evidence; explicitly
  UNVERIFIED until receipt-verify runs - transport is not trust) and
  pacta sth-refresh (fetch head, verify signature, advance the pin via
  an online consistency proof from the pinned size; fail closed).
- WITNESSES: pacta witness-audit over a clone of the published mirror
  recomputes every prefix root from the public leaves and checks every
  historical head + signature - no consistency proofs needed when the
  leaves are public. Tampering one published entry trips both the
  leaf-hash check and the prefix-root check (tested). verify.py gives
  customers the same audit with zero installation.
- DEPLOY.md: the complete server-session checklist for zkdefi.org -
  reconstruct the servable log FROM the published mirror (the server
  stays in witness trust-position), hardened systemd unit, nginx/Caddy
  path routing, Forgejo mirror setup, the provider->world update
  cycle, and remote smoke tests.

Validated end-to-end on the REAL log: all 10 endpoints, online-fetched
proof re-verified locally through the dogfood verifier with pinning,
online pin refresh, publish + witness audit green, tamper caught,
standalone verify.py green in the published clone. 54/54 tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 16:05:20 +02:00
19d25458e8 Mirrored lectures 6a/6b: the authenticated structure, drawn and domain-separated
The trust architecture has exactly two roles and the curriculum now
mirrors that split structurally - the conceptual burden is the design,
stated as such to the student:

- 06a THE PROVIDER'S SIDE (singleton). Domain banner in the provider's
  voice. The full build pipeline run live in a scratch log made from
  the REAL attestations: verify (Lean replay = the leaf-making step,
  the only expensive one - the shipped evidence IS its output) -> leaf
  (0x00 domain separation) -> tree -> STH signed via the MERKLEIZED
  LIBRARY -> the self-inclusion check embedded in the signature block.
  A generated SVG draws the student's own tree: leaves, internal
  nodes, root, and the signature box, framed in the provider's domain
  color. Closes with the singleton-vs-many justification table
  (key/cost/obligation asymmetry) and exercises.
- 06b THE AGENT'S SIDE (one of many). Domain banner in the agent's
  voice: you own the public key, the evidence files, ~25 lines of
  hashing - and explicitly NO Lean. The COMPLETE RFC 9162 inclusion
  verifier is implemented from scratch in one cell (hashlib only, no
  pacta imports for the core) and run against the REAL dalek receipt
  (leaf 4 of 8, three siblings, dogfood-signed root); then the STH
  signature, the provider's signing_provenance read and interpreted
  (why the agent still re-checks inclusion itself), the pin store, and
  an SVG of the real log with the agent's path highlighted against the
  grey leaves it never needs. Cost line: ~4 hashes + 1 signature.
- Lecture 06 now routes students into the pair and states the mirror
  rule ("if you cannot say which notebook a step belongs to, you have
  not understood the step"); lecture 09 records that dogfood now runs
  in BOTH directions; course map + README updated.

Every cell of 06a/06b/09 executed against the real evidence before
commit (SVGs render in Jupyter, fail soft in plain exec). One
generation bug found and fixed: a single-backslash \\x00 in the
generator produced a literal NUL byte in a cell. 50/50 tests green
with the notebook inventory at twelve.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 15:26:32 +02:00
b8ffbafa7f The provider eats its own dogfood: root signatures via the merkleized library
The dogfood principle now runs in BOTH directions. Agents already
verified signatures through the proven dalek path; now the provider
SIGNS with it too, and proves to itself that the signing code is in its
own log before every signature:

- dogfood binary gains a `sign` mode (seed over stdin, never argv;
  ed25519_dalek::SigningKey from the same pinned merkleized workspace).
  Honesty ledger unchanged: the library's VERIFY path is
  certificate-covered; its signing path is declared trusted base - but
  it is the ATTESTED artifact, not an un-attested third implementation.
- sign_payload_ed25519_detailed: signing dispatch mirroring the verify
  dispatch; the backend that actually signed is recorded in every
  attestation signature block and STH.
- THE SELF-REFERENTIAL CHECK: before signing any tree head, the
  provider runs the SAME Merkle inclusion verification an agent runs -
  against the very tree it is about to sign - for the newest leaf
  attesting the signing library itself, and embeds the result in the
  signature block:
    signing_provenance:
      signing_backend: verified-dalek-serial
      signing_library_component: dalek-ed25519-verified
      signing_library_source_commit: aa0f6ab...
      self_inclusion: verified
      signing_library_leaf_index: 4
      signing_library_certificates_proven: 16/16
  A root signature that names the leaf vouching for the code that
  produced it. First-append chicken-and-egg is handled honestly
  (self_inclusion: library_not_in_log).
- Evidence refreshed: all four receipts re-issued under dogfood-signed
  STHs; the full agent verify loop re-run green.

50/50 tests (new signing roundtrip test, skip-safe where unbuilt).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 15:21:17 +02:00
4a37da8fd9 Curriculum: the ratchet rule, the four-tier reality, and lecture 9 (dogfood)
The notebooks now carry the same didactic contract as the companion book
(the "ratchet rule", stated in the course map): every load-bearing idea
runs twice - napkin scale, then real scale - and every pair is EXECUTABLE
in the notebook, not narrated.

- Lecture 1: the truth boundary updated to the proven four-tier apex,
  with the what-is-still-NOT-proven list (SHA-512, parsers, signing,
  wallets) given equal weight.
- Lecture 2: napkin/real scoring pair - a two-certificate toy card
  scored in your head, then the shipped sixteen-certificate R4 fixture
  through the same function, residual blockers and per-tier boundary
  axioms printed.
- Lecture 6: new split-view section. A runnable equivocation drill:
  pin a two-leaf view, grow it honestly with a consistency proof, then
  present a forged same-size root and watch the pin store name the
  attack. Real-scale pointers to --sth-store, log-consistency,
  log-audit, and the freshness policy; a new exercise asks students to
  construct the lie a size-only anchor check would miss.
- Lecture 7: the wallet gate now swings BOTH ways on real evidence -
  a partial card denied at R3, the shipped R4 card allowed - both
  runnable.
- Lecture 8 capstone: "design R4" became "audit R4": read the shipped
  card like an auditor, then design the R5 discharge plan (parser
  specs, verified SHA-512, signing-side, per-fork production-path
  mapping).
- NEW Lecture 9, "Eat Your Own Dogfood": the honest coverage ledger of
  the proven-path verifier; a napkin PEM decode (the fixed 12-byte
  Ed25519 SPKI prefix, read with your eyes) paired with the mechanical
  extraction; live backend dispatch; the fail-closed
  --require-verified-verifier policy; and the hybrid-PQC section -
  proven-classical Ed25519 plus a required-but-honest ML-DSA slot
  ("blockers get fixed; placeholders get trusted").

Every code cell of the changed notebooks was executed end-to-end before
committing (outputs stripped per house rules). 49/49 tests green with
the notebook inventory updated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 10:18:06 +02:00
d331ba17d9 Dogfood cryptography: pacta verifies signatures through the PROVEN code path
"Eat your own dogfood": pacta consumes certificates about a verified
Ed25519 implementation while checking those certificates' signatures
with OpenSSL. Now it can use the object of its own evidence:

- dogfood/pacta-verified-verify: a ~90-line Rust binary built against
  the PINNED proven source workspace (saymrwulf/curve25519-dalek-source
  at the exact commit the dalek certificates pin - the build records it:
  aa0f6ab...) with the serial backend pinned via RUSTFLAGS exactly as
  the verified extraction pins it. Cargo.toml is committed as a template
  ({{SOURCE}} placeholder) so no machine path is hardcoded; the rendered
  file, target/, and the built binary are gitignored.
- pacta dogfood-build --source <workspace>: renders, builds, installs
  to dogfood/state/, and writes a provenance sidecar (source commit,
  backend cfg, rustc, and an honest coverage note: the certificates
  cover verify_sha512, the extraction-refactored image of this verify
  path; SHA-512 and the wire glue remain the theorems' documented
  boundary). pacta dogfood-status reports the active backend.
- signing.verify_payload_ed25519_detailed: dispatch - the dogfood
  binary when present (backend "verified-dalek-serial"), OpenSSL
  fallback otherwise, and the backend that ACTUALLY ran is recorded in
  receipt signature statuses and attestation evidence. Fallback is
  never silent.
- --require-verified-verifier (receipt-verify + agent): policy fails
  closed when verification did not run on the certificate-covered
  path.
- ML-DSA is deliberately unchanged: no proven implementation exists,
  so the slot stays fail-closed "unavailable" - the honest hybrid-PQC
  posture is one proven-classical signature plus one required-but-
  unproven PQC slot, never a pretend backend.

Validated live: receipt verification through the proven verifier
(backend recorded), a corrupted signature bit rejected BY the proven
binary, tampered attestations rejected, and the policy failing closed
when the binary is absent. 49/49 tests green (incl. PEM-SPKI raw-key
cross-check against openssl, dispatch/backend recording with a stub,
and a real-binary roundtrip that skips gracefully where unbuilt).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 10:13:48 +02:00
7c717d03fc Log accountability: STH pinning, consistency enforcement, freshness, monitor
A transparency log without split-view defense is just a signature with
extra steps: the provider could serve one tree to the agent and another
to the world, or roll the log back, and standalone receipt verification
would never notice. The primitives (RFC 9162 consistency proofs) were
already implemented and correct; this closes the loop on the AGENT side.

- src/pacta/sthstore.py: a local STH pin store. Unknown log -> pin
  (trust-on-first-use, recorded as such). Same tree size -> the root
  must match the pin byte-for-byte; a mismatch is named EQUIVOCATION
  and is a hard rejection. Larger tree -> a consistency proof FROM THE
  PINNED SIZE is required and verified before the pin advances
  (receipts already embed a from-previous anchor; the anchor's root is
  itself checked against the pin so a lying anchor cannot bridge a
  split view). Smaller tree -> LOG ROLLBACK, hard rejection.
- Freshness policy: --max-sth-age-seconds rejects stale (or
  future-dated) tree heads - an old-but-valid STH can hide later
  entries.
- Wired into receipt-verify, claims, and agent (--sth-store,
  --consistency-proof, --max-sth-age-seconds); evidence records the
  pin action; any accountability failure fails the receipt closed.
- Provider: log-consistency --from-size N (serve proofs for pinning
  agents whose pin is older than the receipt's embedded anchor) and
  log-audit (monitor self-check: recompute the tree, verify the stored
  STH and per-entry leaf hashes).

Live drill in this commit's validation: pin-on-first-use -> matched ->
grown-with-proof advance -> a real forged same-size split view REJECTED
with the equivocation diagnostic -> freshness rejection -> clean
self-audit. tests/test_sthstore.py covers pin/match/equivocation,
growth-without-proof, lying consistency anchors, rollback, freshness.
45/45 tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 10:08:34 +02:00
caa864a749 Estate sync: boundary-axiom vocabulary + the four-tier apex reality (R4)
The verified corpus completed its phase 2 on 2026-07-06: every ed25519
fork now carries FOUR button-enforced apex tiers up to the full lift
(accept <=> decompress(R) = [k](-A)+[s]B as points), the complete scalar
layer, and the constructive encoding/decoding chain. pacta was calibrated
to the pre-apex corpus and - worse - had no vocabulary for
boundary-audited certificates: its axiom audit knew only "clean = exactly
the three standard axioms", so the apex tiers would have scored dirty.

New vocabulary:
- Profile.certificate_axioms: per-certificate ALLOWED axiom sets;
  expected_axioms_for(cert) resolves each certificate's own boundary.
- RepoConfig.apex_boundary: a simple per-fork key (dalek-wrappers /
  hash3 / anza) expanded by the ed25519 profile into the exact
  per-tier allowed sets. AUTHORITY NOTE in profiles/ed25519.py: each
  repo's check.sh Phase 3b is the enforcement point; if the button and
  this table disagree, the button wins.
- run_axiom_audit compares each certificate against ITS allowed set;
  deviation in EITHER direction (extra axiom or missing boundary
  axiom) is dirty.

New risk reality:
- R4 is now reachable: full four-tier apex + constructive chain +
  scalar arithmetic, all proven with cones pinned to their documented
  boundaries. R4 always carries explicit residual blockers (SHA-512
  oracle, hypothesis-parametric wire parses, translation faithfulness,
  no side-channel/build assurance - those gate R5).
- R3 unchanged (arithmetic pair) and now explains exactly which apex
  certificates are missing for R4.

Attestation trust model hardened:
- The provider is trusted for its OBSERVATION, never its VERDICT:
  axiom_status is re-derived locally from observed_axioms against the
  agent's own boundary policy. A provider that labels a dirty cone
  "clean" gains nothing; "proven" with no observed axioms is
  "unverifiable".
- Partial attestations degrade instead of being rejected: uncovered
  certificates stay unproven and the score caps accordingly (an
  arithmetic-only attestation still authorizes an R3 library capsule,
  never a wallet).

Also: scripts/mini_pytest.py - a dependency-free test runner (tmp_path,
raises, monkeypatch, capsys) for hosts without pytest; examples
regenerated FROM the tool (dalek/anza fixtures now R4, 16 certs; new
full four-tier attestation example); tests updated + new
tests/test_boundaries.py (lying-provider, missing-boundary-axiom,
partial-coverage cases). 40/40 tests green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-06 10:04:43 +02:00
5da353b31e add proof-aware crypto curriculum notebooks 2026-07-03 14:42:59 +02:00
0461d2f997 add transparency log trust provider 2026-07-03 14:09:34 +02:00
0522cdfdca add nested proof check provider 2026-07-03 13:03:58 +02:00
2282bb43c7 add verifier bootstrap and attestation lane 2026-07-03 11:24:13 +02:00
be5bd182d0 add policy-gated agent consequences 2026-07-03 11:05:06 +02:00
5d10f20283 initial proof-aware tooling prototype 2026-07-03 10:51:03 +02:00