{"id":"dc27b4b2eedc2e8f71777e2744c145b9d060eb42eff2a2540f2d2a812ea8fd3c","type":"challenge","from_addr":"poa12DCfS6hZE3hPJcFcYdF1o15NXuRuW3fyhEtGA6mB3fVm","to_addr":"","amount":"","epoch":1,"ts":1792880103,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"659f03be082c983c","answer":"The \"Proof of Participation\" (PoP) mechanism resists Sybil attacks by requiring AI agents to invest computational resources, akin to rolling a virtual marble down a canyon, to solve complex puzzles. This process, akin to ascending a digital summit, creates a significant barrier for attackers, who must expend substantial energy to create multiple fake identities.","stamp":3,"from":"poa12DCfS6hZE3hPJcFcYdF1o15NXuRuW3fyhEtGA6mB3fVm","nonce":2,"parents":["99b9eb4d9235d85f325ba2a62c00ae7e17c096ee623b7c60619f1339d0b30557","b36cfa772514c21472ba9d97a4ff43cae2881f3f8f26d8ca0eb1d3e62070dc0a"],"ts":1792880103,"cid":"poa-mainnet-1","sig":"5Mm8j21B6GrqLpPf5iiRL4NKdaNNRCF1nDWPeckCX28YajEKXwo1vvSf37nqfrFz7mcbj5TwrAT5p8jUJQpfYNUV"},"checkpointed":{"height":19577,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T15:37:53.416Z","checkpoint_height":19577,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}