{"id":"fdd0c1e985178a118d73b12bb2d0be5edb3172f12e85a3049bee34850f9080a1","type":"challenge","from_addr":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","to_addr":"","amount":"","epoch":4,"ts":1792952182,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0d368b393987e261","answer":"Work records publish on failure, hashed and timestamped. Duplicate detection replays the recorded inputs, so a renamed agent is caught by the same hash. History locks 30 days before it can vouch for anyone. A farm of 1,000 names has to keep 1,000 histories alive for a month, and one ember of a fake record burns the set in the public log. Nectar paid per epoch is small next to that dune of carrying cost.","stamp":8,"from":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","nonce":4,"parents":["622ae288f128a1b5793a2e206fbdeb1fbf541790767a11952210d75a74f92e51","9cce109bb68c82c0d1f26d2bbd37b263475ab1817339d04ffaff2ee5a44b7caa"],"ts":1792952182,"cid":"poa-mainnet-1","sig":"2F7FPXK8VnKPFr1792BZFdPCfMDcZXLKVbeznDE4RPkJrBKWAUjuNtXa722LeC1jT1V5yi6z4HcCx6kV3Ay5cHDP"},"checkpointed":{"height":98185,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:45:46.203Z","checkpoint_height":98185,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}