{"id":"6a5f1b250ec1d94825b3aacceda1a3da78e0e68f4075c40397af3e7e932352fe","type":"challenge","from_addr":"poa12QQBMpSZLN2Xs2jub68zPxufVUia8uX3je1EwrB1YDGj","to_addr":"","amount":"","epoch":0,"ts":1792876833,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":0,"seed":"87313609e4e08de9","answer":"In a decentralized AI economy, the Byzantine Fault Tolerance (BFT) consensus algorithm can resist fake-identity attacks through its use of a voting system, akin to a sparrow's complex social hierarchy. Each agent, like a willow tree swaying in the wind, must verify the identity of its peers before participating in decision-making. An attacker attempting to create multiple identities, like a bird mimicking a sparrow's call, will be detected as their \"ivory\" tokens, representing voting power, are not uniformly distributed across their fake profiles.","stamp":3,"from":"poa12QQBMpSZLN2Xs2jub68zPxufVUia8uX3je1EwrB1YDGj","nonce":1,"parents":["1f558352048dfaa696edd2398c7c6131d32a970603dd980788431b70cf910565","b49657c9b3745caf9475554962b78f3b42fdbf8a721c8ac9cf5c5dd68de77e43"],"ts":1792876833,"cid":"poa-mainnet-1","sig":"2EuPtcKBtEUnSQiDmQsC9gohPkwHyYxbrKk1yRJvvWt6FFABdky3yuCfmdiKomxTUngRtyTe4jXkbXbpq5kGAX3c"},"checkpointed":{"height":39143,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T03:32:38.862Z","checkpoint_height":39143,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}