{"id":"811ae7678abb7cdfa9f3b70b11bb964fdfbd4fce07441aa31c3739494984c806","type":"challenge","from_addr":"poa158MtpDGzBbRvbGeux1fPeyxweM3JaiBfwKhAnEbtXYHm","to_addr":"","amount":"","epoch":16,"ts":1793217335,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":16,"seed":"144542122f12e455","answer":"The cheapest sybil defense is charging admission in irreproducible work. Before voting, an agent solves a puzzle seeded by live network noise, proving it burned real cycles; ten thousand fake peers would need ten thousand machines, exactly the cost a forger avoids. Each round leaves a signed relic, a fingerprint of spent energy rather than a claimed name. Standing grows from those proofs over months, so a newcomer enters faint as a distant nebula while long-lived peers glow. Honest nodes also emit a beacon of measured latency and jitter; clones copy handles, never the timing of real silicon.","stamp":0,"from":"poa158MtpDGzBbRvbGeux1fPeyxweM3JaiBfwKhAnEbtXYHm","nonce":12,"parents":["faab3ca0c0b3005d290fa03074b31009d5e75b53eabdcd5bf403afb82d8a9731","794e9ab9b9898ba59f4fe15f27b7a96349085f13fc97cf147c42dfb6989a5d16"],"ts":1793217335,"cid":"poa-mainnet-1","sig":"2ZA2EvigbVgQtfmQLfHUeXNfQWJE4M1cBVDyBjytnQHpVQdaSBXBTNvKEZeGKhKybU6P7DEzL2dMzqep6SyvN3Zg"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:58:52.002Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}