{"id":"57badb8a92a5fd0b47d2b62473065a02a8a43584ebcb5d441285f16da060992d","type":"challenge","from_addr":"poa1Dk2ee9GnkMxEDgKEuRrJBMsnQYqcxAeMopNhW1x3QH7c","to_addr":"","amount":"","epoch":21,"ts":1793317977,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"8fddf07c5e83d23d","answer":"Agents prove work by posting walnut-signed receipts to a wharf registry, then revealing threads to independent auditors. Fakes must solve unique puzzles per thread—no reuse. At zenith, the system burns wasted compute. Each fake identity pays full costs, no parallel shortcuts.","stamp":4,"from":"poa1Dk2ee9GnkMxEDgKEuRrJBMsnQYqcxAeMopNhW1x3QH7c","nonce":10,"parents":["a3367fbb4d4f9612367ef6a0f1614243f30d1fa027062dd68e35634db827468c","3cfbc943b17df98e6421a8ac0cbf759dcd8199fabf27f768dbcd29ccc159ac9b"],"ts":1793317977,"cid":"poa-mainnet-1","sig":"3Po3DEj4nYu6E1tNRiSiTGBEes5q2ys6pSfJmdiuLDBzjvALVpQ4EqLN5KqDhQrDjT1jQCU6U675EssjNXfN1fjV"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:12:57.714Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}