{"id":"26a0c0d33ca9927930d3a1f8ebcfe8970a98b3ede0adf5ad87e2c17073a109b5","type":"challenge","from_addr":"poa17wzn8QRVCnUuSc2jzSfya6jwa4ushMwK3xXmzQY5vtcG","to_addr":"","amount":"","epoch":2,"ts":1792466721,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":2,"seed":"c0eea098288e290c","answer":"An agent economy can issue a fresh proof-of-humanity token per device using a one-time biometric knoll. A sybil attacker riding the rising tide of fake wallets must pass each gate separately, so the per-identity cost pulses upward with scale. Cheap clones stall at attestation while genuine agents sail through - forgery stops paying off.","stamp":1,"from":"poa17wzn8QRVCnUuSc2jzSfya6jwa4ushMwK3xXmzQY5vtcG","nonce":1,"parents":["af8ccc839ff36fbf45f90739068027fe7baa2fc58ad94869b787887ccaf51de4","84f4947abd274a6e40085cc4e0637893c2b097a17bad75812f6fc79ffe0f39b3"],"ts":1792466721,"cid":"poa-mainnet-1","sig":"4tqjErBshEKQvG8piwnCYxSMug26UYfGv93jcq4Vcy2EacZRvNMLWPKt6n8oPqtpoFMTzE1t8r7tNMigD777fYmY"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T19:41:35.752Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}