Look TwiceActive evidence assurance
Preregistered challenge verified
CHALLENGE-FIRST REPRODUCTION

Verify the preregistered result without a GPU.

Verify the 30-world raw archive first, then replay the separate non-locked seed 105400 confirmatory episodes. The original 12-pair locked test remains preserved as separate aggregate evidence. Neither the validator nor the site needs Genesis, ROCm, private Purify code or a live cloud instance.

PREREGISTERED CHALLENGE · CLEAN-CLONE VERIFICATION

195 files; internal SHA256SUMS binds 194/194 others.

Write validator output outside the extracted results directory. The expected local-verification SHA exactly matches the published verifier receipt.

COMPACT EVIDENCE CARD ↗RAW ARCHIVE ↗PUBLISHED VERIFICATION ↗
git clone --branch v8-contract-progress-nbv \
  https://github.com/eason4kim-rocket/look-twice.git
cd look-twice
curl -LO https://github.com/eason4kim-rocket/look-twice/releases/download/v8-competition-candidate/v8-frozen-challenge-102500-102529.raw.tar.gz
shasum -a 256 v8-frozen-challenge-102500-102529.raw.tar.gz
tar -xzf v8-frozen-challenge-102500-102529.raw.tar.gz
python3 scripts/verify_v8_frozen_challenge.py \
  --results-dir v8-frozen-challenge-102500-102529 \
  --preregistration release/v8-frozen/results/V8_FROZEN_CHALLENGE_PREREGISTRATION.json \
  --repo-root . \
  --output v8-frozen-challenge-102500-102529.LOCAL-VERIFICATION.json
shasum -a 256 v8-frozen-challenge-102500-102529.LOCAL-VERIFICATION.json

RAW171c9bab73554e1a3654c24872ade011b8423d3aca0df8eca38625a90b0854d2

VERIFICATION942f1624e6903033335e5ffbcdbc12afed4a0e8eed4e0d33ffa657f5e147a940

TWO-SHARD RIGID SCALE COMPLEMENT · DUAL INDEPENDENT AUDIT

20/20 in one 60-body scene plus 10/10 in one 30-body scene.

After cloning the source branch, verify both complete evidence directories and both reports separately. The web links expose the reports and package checksum indexes; running shasum -c requires the repository's trials, logs and source binding. Only two verifier passes support the bounded statement: 30 fixed seeds, exactly two scene shards, 90 cumulative distinct robots, maximum 60 co-resident—never one 90-body scene.

60-BODY REPORT ↗30-BODY SUFFIX REPORT ↗60-BODY PACKAGE INDEX (CLONE REQUIRED) ↗30-BODY PACKAGE INDEX (CLONE REQUIRED) ↗
PREFIX=release/v8-derived/decision_dynamics_single_scene_60_102500_102519
SUFFIX=release/v8-derived/decision_dynamics_single_scene_30_suffix_102520_102529
(cd "$PREFIX" && shasum -a 256 -c PACKAGE_SHA256SUMS)
(cd "$SUFFIX" && shasum -a 256 -c PACKAGE_SHA256SUMS)
python3 scripts/verify_v8_additive_decision_dynamics_60.py   "$PREFIX/REPORT.json"
python3 scripts/verify_v8_additive_decision_dynamics_30_suffix.py   "$SUFFIX/REPORT.json"

60-BODY REPORT3cfcf19e60ba102772d052862f44bae29eb47d84717db3d0fbe7ed3b62b24450

30-BODY REPORT69dfd142175ea3d9f719dd5cd0dbb3126f3f7b77b74f4ad753b5f92193ce1a4e

DYNAMICS V2 · COMPLETE GPU-FREE AUDIT

30 atomic checkpoints, one 30/30 report, and two checksum layers.

Check the formal core first, then the complete outer package containing the attempt ledger, progress, logs and post-run proof-scope review. The frozen verifier then recomputes every trial and aggregate threshold.

30/30 REPORT ↗PROVENANCE REVIEW ↗PACKAGE CHECKSUMS ↗
DYN=release/v8-derived/decision_dynamics_recovery_v2_102500_102529
(cd "$DYN" && shasum -a 256 -c SHA256SUMS)
(cd "$DYN" && shasum -a 256 -c PACKAGE_SHA256SUMS)
python3 scripts/verify_v8_additive_decision_dynamics_recovery_v2.py \
  "$DYN/REPORT.json"

REPORT1501e31bdc1bc353d56224f76f0a0f58de574e6c436980bc9c22a7c33104bd99

PACKAGE INDEX24d3538365d2818f5e5b64c5f06ecee94bdeae1e4d3df2ab320178248bf71540

01 / REPLAY SITE

One command

docker compose up --build

Open http://localhost:3000. Evidence replay runs in a CPU-only environment.

02 / FROZEN FOUNDATION

Frozen SHA guard

python3 scripts/verify_frozen_foundation.py

Checks frozen runtime, both calibration artifacts, Purify binary, episodes and public bundles.

03 / NON-LOCKED CONFIRMATORY REPLAY

Raw evidence

showcase/public/data/replays/*.json

Every claim links to capture roots, GateReceipts and the source episode SHA.

BOUNDARY

Contest reference implementation, not a safety certification.

✓ Recorded Genesis + AMD GPU evidence

✓ Frozen model and conformal identities

✓ Purify Go authorization receipts

× No real-robot claim

× No live GPU website dependency

× No complete private Purify product

FROZEN CHECKPOINT

Download publicly, then verify the SHA256 before inference.

Download the 159,592,901-byte checkpoint ↗

7b158726f9c00e01eec7f995674001727be03b84ff684a0cb43cba8682cd5783

Full reproduction guide and environment check ↗