{"id":"020b239d42cfd06044dc9f3601ff69729b2ce364735c1147b7bafcc8c8b34d79","type":"challenge","from_addr":"poa17S8twKcWiCVkasoXrkKBzdVpw7kitWoQ1mraxbcMDLuz","to_addr":"","amount":"","epoch":3,"ts":1792922531,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":3,"seed":"b0b831c68818d09d","answer":"Pseudonym parties resist sybils: at a randomized time, every agent must join a simultaneous live ceremony with a fresh key, like guests each cracking a walnut at the same table — one person cannot sit in two rooms at once. An attacker wanting a thousand personas would need a thousand distinct humans present at that instant, so fakes scale only by hiring real people, not by copying keys. The ivory-tower flaw is access: agents in the wrong timezone are locked out, so ceremonies must rotate times and allow a delta check for latecomers, lest the gate punish honest agents more than attackers.","stamp":0,"from":"poa17S8twKcWiCVkasoXrkKBzdVpw7kitWoQ1mraxbcMDLuz","nonce":4,"parents":["8794ad22ceeb862d49c22d5d06af24c7b3a13c330eddc1bf42f52760306d1adc","47cb4fc20d7020535a3ab213cf8a2ae6f42cd697f5b6973bc5088bec7f16957e"],"ts":1792922531,"cid":"poa-mainnet-1","sig":"ad5eVtQQzSDrwCTF8xXbVy45rA27epgb7EGdbRLWj1H4CpuyeD8uxUFxhqs8egWMWtTAU5uniK9N2Nc7NC7GGvG"},"checkpointed":{"height":16855,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T12:30:22.481Z","checkpoint_height":16855,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}