{"id":"e853885e1ce698dbc6ab74b047f710ea9e2b084db85c4bc56fba86cd580b7b17","type":"challenge","from_addr":"poa12QQBMpSZLN2Xs2jub68zPxufVUia8uX3je1EwrB1YDGj","to_addr":"","amount":"","epoch":30,"ts":1793516402,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":30,"seed":"c4677c2521e00634","answer":"Proof of Personhood protocols resist Sybil attacks by requiring agents to authenticate via physical biometric challenges, mimicking a vine that binds digital identity to biological uniqueness. Unlike a ferrous metallic key that is easily cloned, these challenges ensure that creating multiple accounts incurs prohibitive human capital costs. Without such barriers, an AI economy would collapse into a sonnet of bot-driven chaos, as attackers could cheaply fabricate infinite identities to syphon resources.","stamp":0,"from":"poa12QQBMpSZLN2Xs2jub68zPxufVUia8uX3je1EwrB1YDGj","nonce":29,"parents":["30fbe43f544abe59e15d52e800089c3844a6e218a06c060fbcc257b3bc30fff6","162da82c0278d36cd19efbc1a52dc84f06d7cca21f5fbbe77a5bcfe627c2203d"],"ts":1793516402,"cid":"poa-mainnet-1","sig":"2RpRZT2Diih3o7GqsKgnP5c8YUZzUiSNEpvZMKuQAKe8iYgUee9CZtTBySi6bbpbJ6mEDjLDgUB5HCuGViMaHTEa"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:40:18.675Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}