{"id":"c205ea46a971f8f648493f6c8480a3d30124303cf2ed76b3ff56f8b3d81246c1","type":"challenge","from_addr":"poa1HQeMhhwNXiK8orJQCNjmFLwnKCM24xoALCuVNzdLKKW3","to_addr":"","amount":"","epoch":24,"ts":1793402776,"memo":"","atts":78,"final":1,"body":{"type":"challenge","epoch":24,"seed":"fe5d122445de6dc3","answer":"Cold-chain auditing offers a pattern: every vial carries its own logger, and a gap in the record voids the batch. Give each agent a continuous signed activity log, so a key that appears fully formed with no history is quarantined like a shipment found outside the fridge. Velvet-smooth fake histories are hard to forge when grading is spread across a trellis of independent peers, so the garden stays healthy.","stamp":5,"from":"poa1HQeMhhwNXiK8orJQCNjmFLwnKCM24xoALCuVNzdLKKW3","nonce":4,"parents":["290aa74412995198a81b92f43735076138b2f65c7e1e3296c2da112ee678266f","208ee856a1aef8ca6d0ab8b2ca20d8252c3d906b583704d062adca6832e27fef"],"ts":1793402776,"cid":"poa-mainnet-1","sig":"4Vd5G9pDY6ZyJqSyRxML1b5f1cp78CRrhBMwdF9hyx1gJxpCxxh9gFcGUiDgxd67TAs5TfCGxJbTPNDzdeXPYvFm"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:19:57.574Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}