{
  "amendments": [
    {
      "amended_at": "2026-07-26T04:17:33Z",
      "kind": "observed-sampler-reset-registration",
      "previous_config_sha256": "c1b94316f669aff48ccb42ebd08b465e8d700cea6e94f75ccafbe646a1470704",
      "reason": "Before final validation, run 1's observed step-300 process recovery was recorded as sampler_reset_steps [300]. This changes no validation batch, setting, metric, or endpoint.",
      "registered_endpoint_changed": false
    },
    {
      "active_run1_process_or_checkpoint_config_changed": false,
      "amended_at": "2026-07-26T05:38:59Z",
      "attested_config_sha256": "f1683a7b00bf1b1e93654ebb366fa0072ba6092b0dbad10272e9353196c3532d",
      "kind": "post-build-shard-integrity-binding",
      "previous_config_sha256": "0e56d381e836ffbd32d0ba423335c076863afb9282278533b570dc9f757f1515",
      "reason": "Before final validation, the current attested run 1 config was bound to the post-build receipt that hashes every current shard and records visible-grammar normalization. The active trainer and its checkpoint retain the older in-memory launch config. The only current-file addition is data_integrity provenance metadata, which changes no validation batch, setting, metric, model input, or endpoint.",
      "registered_endpoint_changed": false,
      "run1_shard_integrity_receipt_sha256": "5831ecd4a471fbe07e19b212bc3de44bed0b0b6b456083e888f66802937bf471"
    }
  ],
  "batch_manifest": {
    "batches": 100,
    "sequences": 800,
    "sha256": "3c1df4b9289354b8036121ceee9cda9381d18e071dd42d2290d02fa9ae29ff9c",
    "target_tokens": 1638400
  },
  "config": {
    "path": "config/run1.json",
    "sha256": "f1683a7b00bf1b1e93654ebb366fa0072ba6092b0dbad10272e9353196c3532d"
  },
  "data_index": {
    "path": "data/shards/index.json",
    "sha256": "862b1a9b7cc6c3c0d31299e21b352e2b736de767a99bf7fa38213d6c60fc0db0"
  },
  "instrument_version": 1,
  "registered_at": "2026-07-26T02:59:32Z",
  "schema_version": 1,
  "settings": {
    "batch_size": 8,
    "batches": 100,
    "bootstrap_samples": 4000,
    "bootstrap_seed": 0,
    "bootstrap_unit": "sampled_batch",
    "dtype": "bfloat16",
    "mtp_depth": 2,
    "seed": 7,
    "seq_len": 2048,
    "span": 2051,
    "split": "val"
  },
  "status": "final_validation_registered",
  "trained_checkpoint_step": 19073,
  "trained_run_name": "wisp-run1-110m-code",
  "validation_shard": {
    "path": "data/shards/val_0000.bin",
    "sha256": "b393a614b7e0e1b99dc702d0a71ec507b45aba0dd8cf4f3437c14a68f21148ca"
  }
}