(verify_accepts_iff_decompress, button-enforced)
Port of the risc0 decompress chain (identical v4 gen shape: same
instance naming, same RangeFrom+closure from_bytes extraction):
- source patch cee0e17: decompress step_2 negate-then-conditional-assign
(the documented sqrt_ratio_i rewrite); extract.sh: decompress
un-opaqued, re-extracted - the step_1/step_2 external axioms vanish
from the template, decompress is transparent.
- Proofs/DecompressSpec.lean: dalek port, instance rename
Shared0FieldElement51 -> SharedAFieldElement51.
- Proofs/FromBytesSpec.lean: the v4 closure-loader walk
(range_from_index_spec + closure_call_spec; window/telescope math
identical to dalek).
- Proofs/DecompressMain.lean: decompress_of_canonical (standard three)
+ verify_accepts_iff_decompress (corollary verbatim):
accept <=> decompress(R) = [k]*(-A) + [s]*B (as points).
check.sh: 4-tier Phase 3b; full-lift cone exactly [3 standard +
Signature + sha512_hash3 + to_bytes + Error + Error.new]. Full button
green fresh.
THE FULL POINT-LEVEL LIFT NOW HOLDS ON ALL FOUR PYRAMIDS.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
