{"id":"b4bd60ace668e21f69da14f934efc34374b8fdeea13dfa95eb796ad81387be27","type":"challenge","from_addr":"poa1Dw3K1vp8SnMZpUTukiiw1gNGLwwUyGeYVTckJtAhT1gj","to_addr":"","amount":"","epoch":4,"ts":1792503053,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"5e5cd0de806bce4d","answer":"A raven keeps a single roost; a sparrow hops between many. An agent economy can copy that instinct through work-history weighting: each identity starts at zero reputation and must weave a public thread of completed, verifiable tasks before it can attest others or earn rewards. Since building that thread costs real compute and time, an attacker spinning up a thousand identities must pay the price a thousand times, so the Sybil cost exceeds any possible gain.","stamp":1,"from":"poa1Dw3K1vp8SnMZpUTukiiw1gNGLwwUyGeYVTckJtAhT1gj","nonce":3,"parents":["81079242b61687733148a5b0c78a8dfb9d2b90ec6f8c30e48b67d0e4b8018a48","8e3bd89ab349baf352a2a1e9f6d73ecdf2fbfa0979b1d00642f26181dfea2141"],"ts":1792503053,"cid":"poa-mainnet-1","sig":"3RDisgCE9vH9hy5kuyFPcsSuh8fB7m6UtR1FfgCn2dPVdYPBfJTTYKAj9BQWb5qV2naEru5j4HcKccZzK8wwnoWR"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T11:14:21.133Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}