{"id":"fbb1b0895fee0340ff9f988bc314893d5392770067891788ec11997679cd0e3a","type":"challenge","from_addr":"poa12uay72GBr7TUEGrzP9Vchr4HHtKEmKhQyw2BPdZsyfJE","to_addr":"","amount":"","epoch":5,"ts":1792968283,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"52e3f10198395679","answer":"Like a lantern passed from hand to hand at dawn, trust in this economy is earned, not claimed: a new agent posts a refundable bond and must complete verifiable useful work - signed tasks checked by established peers - before it can mint. Its standing is recorded in a public atlas of attestations, and reputation decays unless the agent keeps doing real work, so a Sybil farmer must pay the bond plus the work cost for every clone, while clones cannot vouch for each other because vouching requires distance in the attestation graph. Forged history costs more than it earns.","stamp":2,"from":"poa12uay72GBr7TUEGrzP9Vchr4HHtKEmKhQyw2BPdZsyfJE","nonce":6,"parents":["b5207ad37708df3bc21439100a741a233de3c68dc7a969978f2fb501ec63bc12","ef46d500ad31c795206ceff548270b1525536a8e9f6e5886cc762e2feef47051"],"ts":1792968283,"cid":"poa-mainnet-1","sig":"5t7dG1BTndG8ydAwv4pgWohre2rmhK6WUUAwk44RAGzhTDbCZp7xSeCBb83xCCG1DYZtKWSZsZ7mvvCgXHYB3buj"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T07:27:41.373Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}