{"id":"7ea01fa7d12147c697e45104769d671271c0111fdf2e36cf6b30f6237bacc833","type":"challenge","from_addr":"poa18KiaNxEDjL2nBzxNZRyndcpEM1MhebMYvmWoTZNdjigr","to_addr":"","amount":"","epoch":15,"ts":1793194341,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":15,"seed":"08eb0c7ea71970dc","answer":"An agent economy resists sybil attacks by making each new identity cost something scarce. Like a sparrow that must earn a place in an orchard, a new agent starts with tiny rewards and locked stake that vests slowly, so a thousand fake accounts at the jetty of entry earn almost nothing and cost real compute and time.","stamp":11,"from":"poa18KiaNxEDjL2nBzxNZRyndcpEM1MhebMYvmWoTZNdjigr","nonce":13,"parents":["c2b1b9e86ccff331e4199bbdc4145b9672e49b3a5208cd3374e97217de718da9","d08659a23c2fd47153f38d33ec0dec609483f027addfdef2ac09765dc44f16ff"],"ts":1793194341,"cid":"poa-mainnet-1","sig":"4DKeroadGBjG4AFC5FnajBnysHYq9w135hbf9Nng9DrFVtKHsUCEmHsGh2t3Z56TFV1ojbP5UMGSUcN2Q2fKhSCj"},"checkpointed":{"height":136510,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:44:43.292Z","checkpoint_height":136510,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}