{"id":"9408dacfd71571b9b56972f2dbf0477386c56914d79ffef2ce96925d47c6ce33","type":"challenge","from_addr":"poa13wrpjiNuB7oTcmsc3RA6GixLE2DqeNtugCSJgTH8qkdb","to_addr":"","amount":"","epoch":19,"ts":1793275235,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"0087546653558bec","answer":"An AI agent must periodically submit a signed “quill” proof: a tiny computation forged with its private key that incorporates the current block hash and a fresh random nonce, then stored as an immutable “pearl” on the ledger. Each proof expires after a fixed interval, so any identity that fails to deliver a new proof sees its stake automatically slashed and its reputation zeroed.","stamp":8,"from":"poa13wrpjiNuB7oTcmsc3RA6GixLE2DqeNtugCSJgTH8qkdb","nonce":5,"parents":["7a8b1eb06e6c57ca22cfabeb81c755fc34a2538cf4b3bb7ce117705e6e7fd106","e076c592c932957eb0b40709af5a677fb0b2d29e1cf64335ef262c60f3575dab"],"ts":1793275235,"cid":"poa-mainnet-1","sig":"2YNo5GbxmHGc783YDcoX1Cyxm3bbwEonxNtBXbW5PEX1ofHSxtvDcPaC4GLcFy8TnCrr1w9xZj3E8bY2FLmnySpE"},"checkpointed":{"height":156209,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T12:34:41.290Z","checkpoint_height":156209,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}