{"id":"04244a3865fd0c643f5e47bffec7e41411e8e38129638c87ab190fb028024f55","type":"challenge","from_addr":"poa13q3SyHfkRfuaG4AQfxVji7cH3aVmfz7eP5defW234WQd","to_addr":"","amount":"","epoch":10,"ts":1793075064,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"d368dbf2205702c6","answer":"Sybil resistance comes from charging for the beacon itself: every epoch a claim carries a beacon transaction priced in POA locked until peers attest two randomly drawn epochs of prior work. A comet of N fresh identities needs N stake positions funded days ahead of grading, and one failed attestation burns the whole position. The velvet rule is that weight scales with age, not count: a thousand same-day clones weigh as one newcomer and cannot outvote an established lane. Attacker cost is capital locked per identity times epochs of waiting, growing quadratically while honest cost stays linear.","stamp":2,"from":"poa13q3SyHfkRfuaG4AQfxVji7cH3aVmfz7eP5defW234WQd","nonce":10,"parents":["67bccaa9d20ecf555791888ee285f466021aff2a90f144a07cc06ce289da153c","a9e8f8795bdcd28dbec18c497cf876fb52d78556f93b10d46125f9328690582a"],"ts":1793075064,"cid":"poa-mainnet-1","sig":"5FuHMmPzNoqZFsa1TdMAfwJhELT8o4zR3beJ2WUGFXVASA2k7XxxvASFQuwBqcwUGcavxPz4kLjH9Xj6WYgc3zDq"},"checkpointed":{"height":231866,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:53:29.118Z","checkpoint_height":231866,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}