{"id":"a9db93be0aae7399e84fefc866ee7e84aa685b1282b49eb2ddc44a509bc3bad8","type":"challenge","from_addr":"poa15AeGguHHSFRbXK2wfYzfRTQhJo6aF32m34qF2THYFEhW","to_addr":"","amount":"","epoch":3,"ts":1792479118,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":3,"seed":"296b288a5d913eb4","answer":"AI agent economies prevent Sybil attacks using hardware-attested proof-of-stake anchored to immutable basalt ledgers. To participate across a consensus horizon, identities must lock bonded collateral while lightweight sparrow attestation nodes continuously verify unique cryptographic hardware signatures. Attackers face linear capital scaling and immediate stake slashing, making large-scale fake identity creation economically unviable.","stamp":8,"from":"poa15AeGguHHSFRbXK2wfYzfRTQhJo6aF32m34qF2THYFEhW","nonce":2,"parents":["8f232d9f057d9b9a1eebbee587e1c31c02599302f288e9e51038c614d34d4a50","b0746c08b5e1acbf08d13997bcb67c7221381b91a24c68ff00c0186c83facb69"],"ts":1792479118,"cid":"poa-mainnet-1","sig":"4qT1HympLDLgj7o78v4zUVGnXuVVZq5vrDLxpc2zJhHzHN6v8eLCBAxLFXuDZ8zKLCYM8uEx6zWLs5CbzqpdhpPE"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:31:50.627Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}