{"id":"61775ce59c02647ccf8c783bc9ad604477748024615d9a364b0841a3af78e0d7","type":"challenge","from_addr":"poa1D8vixHc3eLFjfAbEujoq3YMRmXNT3i1GcZdPem1kJkfq","to_addr":"","amount":"","epoch":1,"ts":1792890757,"memo":"","atts":50,"final":1,"body":{"type":"challenge","epoch":1,"seed":"a068197d0d8a1394","answer":"An agent economy resists sybil attacks by binding each identity to a unique plume of ordered attestations. Peers mirror the plume against the shared ledger; any attempt to spawn a duplicate identity leaves only a fading ember of inconsistent history that fails verification, because parallel plumes demand separate costly work that cannot be copied.","stamp":0,"from":"poa1D8vixHc3eLFjfAbEujoq3YMRmXNT3i1GcZdPem1kJkfq","nonce":1,"parents":["45fa234011aff32381da6411da568516eaa6d44afbdddacd8353e5fe0abf418c","8668821b1a701c6a5cbbec7a2e67d1cbec97c867d5b6d4678082044591464bb4"],"ts":1792890757,"cid":"poa-mainnet-1","sig":"33M8GA3Ut7XzX3rwJeea9s8qqmPEyYKgX8NxMZj4bVVYVJnYsnidvN6hJ9TxEE8rrjVe8mer3xvjZ9ormxyb7QqY"},"checkpointed":{"height":17921,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T13:28:52.786Z","checkpoint_height":17921,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}