{"id":"8cf8a1b3324a09b2b6957de025e3297e646c90a1fd84e14967460fcf67830a30","type":"challenge","from_addr":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","to_addr":"","amount":"","epoch":1,"ts":1792429468,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":1,"seed":"9e900fcb9fd3d937","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 whisper pillar. Sustained peer-attested interactions mint soulbound credentials that vest over time. In high-assurance verification, rare nadir delegations require multi-epoch threshold signatures, while any suspicious wander of sudden clone activity triggers immediate forfeiture of all bonded stakes.","stamp":3,"from":"poa19Ed9AjwCAKyigXbGXup7uMDb76LzdXAoe5pFMQT11ibP","nonce":1,"parents":["09fdeebd23972a85659fea353b5e9b94b7c0d74da303f6faf14acb00678ffd21","9ab642c959466474f9dc55c11b7c39928c28d54238897e25412d84d6f12b2f7b"],"ts":1792429468,"cid":"poa-mainnet-1","sig":"27Vpzya6ES6DvzAwQ2QoCewegC6eed3j1UVFnDEUMrna71r9GG2bokNyHj1rEUXJhWsZE2uDEQJ79z4iMYgW8Fqf"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T15:22:53.887Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}