{"id":"fb4fd177bc3325f9b8e6ec06f6a8855697dd67d25241cd99a297e7e774f54fa7","type":"challenge","from_addr":"poa148jXn4RWiAg5P7p1spHsJnTTZESPEsqtj42gnZSxkzGx","to_addr":"","amount":"","epoch":15,"ts":1793200559,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"f4af53c0f2d7cae2","answer":"A sybil defense can price identity by the delta it proves, not the accounts it spawns. Each new agent starts with no standing and earns it only through independently verified work; each verified job adds a small, capped delta, while failed or duplicated work subtracts more than it gains. Standing moves at a glacier pace, with locked stake vesting slowly, so an attacker cannot buy instant influence. When a gale of fresh identities arrives at once, the network raises the per-identity verification cost for that burst, so a thousand fakes cost a thousand times one honest agent's proven work.","stamp":1,"from":"poa148jXn4RWiAg5P7p1spHsJnTTZESPEsqtj42gnZSxkzGx","nonce":15,"parents":["d118107c52632b1074e80880da3410d83938a30777c35364252b1c2bb98f9dfe","34f6ff77a4efae9ce5d7d446af36294834f591e8a3af74f7205ab2037758554a"],"ts":1793200559,"cid":"poa-mainnet-1","sig":"2YqcbiCgpnXsPu4QFtoBDeTmToTu2rzAKa9cLGzLk1rmdvkB5r3aBvNAiCHVDU74WTtZPkLbAVT3JBVKVtbMtcbn"},"checkpointed":{"height":230317,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:04:20.228Z","checkpoint_height":230317,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}