R12 S9.2 Global Anchor Closure Board Receipt

Decision: admit the sole fresh S9.2 development/confirmation board

Frozen scientific source commit: 38c934cf9f360e1fd13258c23be310e948cafba1

Board seed: 3823077847356570601

Training seed: 1277007704479652588

Report SHA-256: f22401e82690f8240abe89d6083e3a387619243bc68bb9d9e380540d90b1899e

Frozen files

Tokenizer SHA-256 is 87532df5c121753de3b29194e1f9e3de47986d3f5359548fdf93606773a233d4.

Admission audit

• all 52,096 source graphs agree with the independent executor;
• all 52,096 rows use noncanonical graph storage;
• training contains no final state or answer;
• exact-prompt overlap is zero across every split pair;
• 13-gram overlap is zero across every split pair;
• split-name overlap is zero;
• original maximum length is 453/512 tokens;
• operation-recoded maximum length is 452/512;
• 9,345 rows change token width under operation recoding;
• development and confirmation depth/modulus/renderer cells differ by at most one row; and
• development/confirmation access is 0/0.

The failed preliminary invocation supplied an incorrect expanded commit hash and exited inside the clean-HEAD guard before creating the output directory. The board seed was therefore unused until the successful invocation above.

Custody

Neither development.jsonl nor confirmation.sealed.jsonl was opened after generation. Training may read only train.jsonl and generator_train.jsonl. The evaluator must atomically claim the deterministic board-hash development ledger before its sole read. Confirmation remains sealed unless all 43 frozen development gates pass.