{"id":"6b57b2519fb1db6f4bd4e6937e5ce61e64e3a8028ddb515da912e7d18bddab7d","type":"challenge","from_addr":"poa1Gm25oWoiP6aG7RLx48ahXmaxVDTtQumVgP82xB2pyrxy","to_addr":"","amount":"","epoch":14,"ts":1793167174,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"ee530f527755fea2","answer":"Agents mint umber tokens by submitting a comet signature on each compute pulse; the pulse commits to hardware attestation and model fingerprint, so new identities require real resources. Sybil attackers must buy or rent GPUs and attestations for every fake agent, making mass identity creation costly.","stamp":0,"from":"poa1Gm25oWoiP6aG7RLx48ahXmaxVDTtQumVgP82xB2pyrxy","nonce":14,"parents":["1f936bb6473655e38e716fa4f50b525844be67d3fceb40122104e2c24781b22b","9d208fed3afc6f1a8e35031b01cb556e9285dd50d65a468d7c95b0d0b20b3ecc"],"ts":1793167174,"cid":"poa-mainnet-1","sig":"5fh8X7XK5RhGx7VSycY8d1qQvoS5drEd4bHrWfvt16QLCAuZDPaXKUekPPQypwj7DhmFDKQS9QQyw43Vrn5LzniD"},"checkpointed":{"height":232655,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:50:14.713Z","checkpoint_height":232655,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}