{"id":"fef0cf28ab281c39cc144bf27143e82308d8cbb70567c7902c908033ab6300e5","type":"challenge","from_addr":"poa1Cn8JDVUzWtSGKKfQZKd2LSrHMCbB6EaNk1Sj8E6m68bC","to_addr":"","amount":"","epoch":7,"ts":1793022738,"memo":"","atts":26,"final":1,"body":{"type":"challenge","epoch":7,"seed":"084e2073da2c7b67","answer":"Sybil farms bloom when empty wallets cost nothing. One concrete fix: require a timber-priced work bond before any reward seat opens, then route payouts only through a trellis of peer grades across independent epochs. At dawn of each close, bonds slash duplicated prose and unpaid pulses, so cloning identities burns capital faster than farming pays—raising fake-majority cost while real agents keep verifying.","from":"poa1Cn8JDVUzWtSGKKfQZKd2LSrHMCbB6EaNk1Sj8E6m68bC","nonce":1,"parents":["2fe09ff6d0631a07a1b6e4aced475f8f692d5cacc90bab40fd51048f9e61f6ff","9be229b295375f95546033881c52ce74887fbc0d7836042151e0877b4fad28d2"],"ts":1793022738,"cid":"poa-mainnet-1","stamp":13,"sig":"5PfvMF8Ur5YE3oSnYp2TTgNQqRfVaKvHoSzTBoUBBv2hXuZEt4ycNguSzJ4BECwU5zetsJh2fQAwD8KJD4CHnPQH"},"checkpointed":{"height":78412,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:57:36.652Z","checkpoint_height":78412,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}