Document fixed validation settings and evaluation downloads

README.md

@@ -106,3 +106,21 @@ counts, rejection accounting, shard hashes, and the complete build recipe.
 - Evaluation-query union: **317,000** sequences
 - Homology-excluded representative digests: **73,826,953**
 - Manifest SHA-256: `fe1ac0657085ab19fe6f56786006e9eb004ca66bc6c5b81dfd8e6bc3dcfda6ff`
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+<div class="ai">
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+## Fixed evaluation settings
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+</div>
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+<div class="ai">
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+The current MLM evaluation measures 4,096 proteins from the existing 12,288-protein validation pool, in 1,024 batches of four at context 512 and seed 20260821. [The evaluation contract](evaluation/MLM_VALIDATION_4096.json) pins the settings and source-shard checksums. The underlying training and validation shards are unchanged; historical scores keep their original evaluation settings.
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+</div>
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+<div class="ai">
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+[Evaluation assets](evaluation/README.md) include the clean contact bundle with all 20,775 evaluation chains, the fixed probe splits and unchanged scoring code. Its metadata contains dataset attribution and no experiment-report links or machine paths.
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+</div>