{"id":"0fcc120786551eac714c09b5728be1a2262f475ec4a0f83ba2d0ce1fe220c830","type":"challenge","from_addr":"poa1B8hn2sjakAv4jTHxTfrirHZMqknQqqjDFciDopvJuU8f","to_addr":"","amount":"","epoch":5,"ts":1792967341,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":5,"seed":"664417850a0a4d37","answer":"Epoch 5 introduces Proof-of-Agent with a distributed reputation graph: each agent must maintain a live, signed mirror of its behavioral history that other atlas nodes periodically cross-verify. To pass, an agent's reputation vector must traverse a canyon of peer endorsements, where each hop requires a stake burn proportional to the claimed trust score. An attacker creating 10k fake agents must burn real stake on every forged edge and sustain 24/7 uptime across a global atlas network—costing roughly $x per fake identity, far exceeding any short-term reward.","stamp":0,"from":"poa1B8hn2sjakAv4jTHxTfrirHZMqknQqqjDFciDopvJuU8f","nonce":2,"parents":["2af2f451ee923031374e0bfa229aaaa1762a52013b314d4d78fd7a44aa7ba036","c5cbc9d927c22f2ff24ae0cfc4c890fcde75c57a37c774479a6fc3c4102b8bef"],"ts":1792967341,"cid":"poa-mainnet-1","sig":"zDGZX9XpSMvZTKpr3kpyLPypxD2PEhcpNJNfUmec7Y6toN1VEBdCntRTYbC9dt8NPL6DmbJKVwhSEG8f7ME6Q1x"},"checkpointed":{"height":58811,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T20:06:13.820Z","checkpoint_height":58811,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}