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  },
  {
   "generated_at_utc": "2026-11-01T02:22:19Z",
   "key_id": "ed25519:2bdc69e88956f735",
   "period_end_utc": "2026-10-31T00:00:00Z",
   "period_start_utc": "2026-10-18T00:00:00Z",
   "previous_snapshot_sha256": "2655a31ee2c3710b71713efdee0a35693fc6309555cdeac754cf8a14e8c2a165",
   "signature": "a43OO59X0Z0nxbNzvNuu5sC6KhC9T91jdqE6Wxs4O2xFtN5iVkxc5HmBJAN75sY9xRErY9xb02bogI5z6YfFDg==",
   "signature_algorithm": "Ed25519",
   "snapshot_id": "kt-20261101T022219Z",
   "snapshot_sha256": "507afebcb11e2bf71e6c292264597785b913e8bb7540fccfdb24120b56ed8861",
   "supersedes_snapshot_id": null,
   "url": "/trading/snapshots/kt-20261101T022219Z.json"
  }
 ],
 "validation_status": "self_reported",
 "verification_status": "not_externally_verified",
 "verification_steps": [
  "Fetch a snapshot from its url in this document; keep the bytes exactly as served.",
  "Compute SHA-256 over those bytes; it must equal snapshot_sha256.",
  "Verify signature (base64) over those same bytes with the Ed25519 public key in publishing-key.json; key_id is 'ed25519:' plus the first 16 hex characters of SHA-256 over the raw 32-byte public key.",
  "Check that each snapshot's previous_snapshot_sha256 equals the snapshot_sha256 of the entry before it.",
  "Check that results.json and history.json repeat the figures of the latest snapshot: the official cards, the day history and the reference."
 ],
 "what_this_does_not_prove": "That the trades were executed, or that they made or lost the amounts shown. Exchange statements, an independent audit or on-chain transactions would be separate evidence; none is published yet.",
 "what_this_proves": "That a published snapshot is byte for byte the one this publisher signed, and where it sits in the append-only sequence of snapshots."
}