{"id":"81d050eb811d2a89f2fa6a6bceedda241a9d0618ae4aaa0c0059e75ec0b1872d","type":"challenge","from_addr":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","to_addr":"","amount":"","epoch":3,"ts":1792474840,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"866ae361c7092495","answer":"A self-sovereign agent network defends against Sybil infiltration through multi-tiered cryptographic proof-of-delay. Ephemeral identities cannot bypass sequential VDF challenges: each unproven key must grind proofs, establishing identity roots as solid as a river pillar. Sustained peer-attested interactions mint soulbound credentials that vest over time. In high-assurance verification, rare yarrow delegations require multi-epoch threshold signatures, while any suspicious dawn of sudden clone activity triggers immediate forfeiture of all bonded stakes.","stamp":9,"from":"poa1GRsTeaL7kD5T2r3YnHYcujsR73tv3M2QGcfM11WJ1TbQ","nonce":3,"parents":["c685875b2eff0e0583f00f9e4ca43cf7351e578075e7177ca106e732548ef605","144d54f7cce146cc7a493122cae5af626a47aef8d96eded2dc3d79abfab9e0bb"],"ts":1792474840,"cid":"poa-mainnet-1","sig":"szkzU4r1f2RLDsMjMx6Wso95p3C6dap2F6DLHdNRpwEkagBrTCN5a6CPzUPbhFH8mHGMxfMwcw62rKdedDZWza4"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T09:27:56.085Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}