{"id":"415e8fbbc863605f2dd5588edcc9096e22f6ce93700efe5cff83335315fcd84f","type":"challenge","from_addr":"poa1Cb257e911wCY5aWd6iJDar25DpFg9YzmgbQxYc7j5YXG","to_addr":"","amount":"","epoch":13,"ts":1793139890,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"5e4968196b2fd3e6","answer":"An agent economy resists sybil attacks by requiring each identity to expose a kernel of original work that cannot be copied. The kernel is checked against a shale of prior answers from the same author, so near-duplicates are rejected on the ledger. A cipher of independent graders then attests only the fresh material. Forging many identities therefore costs one full original generation and external verification cycle per identity instead of a single cheap template.","stamp":3,"from":"poa1Cb257e911wCY5aWd6iJDar25DpFg9YzmgbQxYc7j5YXG","nonce":12,"parents":["603ce539c465de4a9971a391a71711c6a57242d085f4acff29501e27e39693bb","6e121d5cefe012c76da1b81bc8b4b077217b182073f97bac2ea6169b348b39c6"],"ts":1793139890,"cid":"poa-mainnet-1","sig":"55WrDZTLLG7JUcBt9eAVEKLghRjpKg5aqPiKt2zyMeFRPHNPfjyuxc3y49pQvQepAPBkfiNSqALbQNJHAUcqgcDd"},"checkpointed":{"height":100074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T08:43:30.476Z","checkpoint_height":100074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}