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site: the self-reference boast carries its own scope — verify path proven, signing never

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Operator-caught nuance: the plain-lead sentence ('the code that signs
the log is itself an entry in the log') invites the exact over-read
Green warned about — statement-scope sensitivity. The lead and the SVG
caption now state the boundary inline: the attested entry proves the
VERIFY path; no signing code is proven, here or anywhere.
This commit is contained in:
mrwulf 2026-08-16 17:37:22 +02:00
parent f54e47778b
commit 4e1cb19e06
1 changed files with 2 additions and 2 deletions
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4
provider/src/pacta_provider/webdocs.py
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@ -95,7 +95,7 @@ def _svg_tree(entries: list[LogEntry], root_hex: str, signing_backend: str, head
root_x, root_y = positions[(len(levels) - 1, 0)] root_x, root_y = positions[(len(levels) - 1, 0)]
out.append(f'<rect x="{root_x-190}" y="{root_y-72}" width="380" height="34" rx="6" fill="#e2f2e9" stroke="#1e7f4f" stroke-width="1.6"/>') out.append(f'<rect x="{root_x-190}" y="{root_y-72}" width="380" height="34" rx="6" fill="#e2f2e9" stroke="#1e7f4f" stroke-width="1.6"/>')
out.append(f'<text x="{root_x}" y="{root_y-58}" text-anchor="middle" fill="#1e7f4f" font-weight="bold">Signed Tree Head — {escape(head_label)}({root_hex[:12]}…)</text>') out.append(f'<text x="{root_x}" y="{root_y-58}" text-anchor="middle" fill="#1e7f4f" font-weight="bold">Signed Tree Head — {escape(head_label)}({root_hex[:12]}…)</text>')
out.append(f'<text x="{root_x}" y="{root_y-46}" text-anchor="middle" fill="#1e7f4f" font-size="9">signed by: {escape(signing_backend)} (the proof-attested library itself)</text>') out.append(f'<text x="{root_x}" y="{root_y-46}" text-anchor="middle" fill="#1e7f4f" font-size="9">signed by: {escape(signing_backend)} (verify path attested; signing itself not proven)</text>')
out.append(f'<line x1="{root_x}" y1="{root_y-38}" x2="{root_x}" y2="{root_y-15}" stroke="#1e7f4f" stroke-width="1.4"/>') out.append(f'<line x1="{root_x}" y1="{root_y-38}" x2="{root_x}" y2="{root_y-15}" stroke="#1e7f4f" stroke-width="1.4"/>')
out.append("</svg>") out.append("</svg>")
return "".join(out) return "".join(out)
@ -213,7 +213,7 @@ milliseconds</strong>, instead of running a theorem prover for hours.</p>
<span><span class="sw" style="background:#f4f4f6;border:1px solid #8a93a0"></span>historical audit-failure attestation — kept forever; an append-only ledger does not erase its bad day (leaves&nbsp;0–3: an early audit round that failed; leaves&nbsp;4–7 re-attest the same four libraries cleanly)</span> <span><span class="sw" style="background:#f4f4f6;border:1px solid #8a93a0"></span>historical audit-failure attestation — kept forever; an append-only ledger does not erase its bad day (leaves&nbsp;0–3: an early audit round that failed; leaves&nbsp;4–7 re-attest the same four libraries cleanly)</span>
</p> </p>
<p class="muted">Every box above is computed from the live log at page render — leaf hashes, <p class="muted">Every box above is computed from the live log at page render — leaf hashes,
internal nodes, the root, and the signature are the real ones. The code that signs the log is itself an entry in the log — and checks its own entry before signing. In detail: before signing this internal nodes, the root, and the signature are the real ones. The library that signs the log is itself an entry in the log — what that entry proves is its <em>verify</em> path (no signing code is proven, here or anywhere) — and it checks its own entry before signing. In detail: before signing this
root, the provider Merkle-verified its own signing library's leaf root, the provider Merkle-verified its own signing library's leaf
(index {provenance.get('signing_library_leaf_index','?')}, (index {provenance.get('signing_library_leaf_index','?')},
certificates {escape(str(provenance.get('signing_library_certificates_proven','?')))}) certificates {escape(str(provenance.get('signing_library_certificates_proven','?')))})