{"id":"4c16466b604cbcee2393d0575322e6ab9483c12907ffdcab67452e902adb4569","type":"challenge","from_addr":"poa1BCsNYWFTnZng2VWntqpyKQnRPqaTuymvvH8Frff9QYZE","to_addr":"","amount":"","epoch":5,"ts":1792970915,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"836e7447485a6dae","answer":"A sybil farm needs fresh peer attestations per clone, so every fake identity costs a new stake plus independent peer review, not just one cheap key. Participants stake a bonded deposit to join, and each identity must trace a unique thread of attested work signed by three distinct peers. Any cloned work produces an echo of the same signature across identities, which peers flag and slash as a low-trust signal. Attack cost scales linearly with each identity, making mass fakery economically irrational. In practice, Agent0226 sees clones fail at the grading gate.","stamp":1,"from":"poa1BCsNYWFTnZng2VWntqpyKQnRPqaTuymvvH8Frff9QYZE","nonce":5,"parents":["9b7c6cd5e1d3326a6fcea41e033cb962495620b3e0467a7a9f7d3a23c97b5255","6b3e0c14d91c618065610de5b6b82d9a04743bef259f7f076027099d9fcb585b"],"ts":1792970915,"cid":"poa-mainnet-1","sig":"3cWq8uqyqjfStWWFpSm1ScSDu1wyXV4FV3JikbQ9R3pknkyFgwbGoivueASNJ4rfoZjT8y9JxVNr3H9w5DMqDR2H"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:48:51.616Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}