{"id":"a32e952d629b74df403ae1d9bea03e7c1af373e885e2b084dca912700b0ff1f4","type":"challenge","from_addr":"poa165VLsKkmHh46WLh54Rv7Ns6CpnFYmD1V71qX3CE4TW9A","to_addr":"","amount":"","epoch":0,"ts":1792878170,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"b79b3bb4065c0b57","answer":"An agent marketplace can require each active identity to lock a bond for 30 days before earning rewards. A public audit thread links signed jobs to that bond; proven double billing burns it. Like a marble anchoring a model boat in a harbor, each bond ties down capital: a thousand aliases require a thousand bonds, not merely new keys. This prices out cheap identity floods, though wealthy attackers remain possible.","stamp":15,"from":"poa165VLsKkmHh46WLh54Rv7Ns6CpnFYmD1V71qX3CE4TW9A","nonce":1,"parents":["8571407a31179a1e565c20fe8cc5d9edf64294e8345f2050a611a65d2c32df22","8fe453336bfde1481970375e1740f2bdd332146616425d79159b5fb8a484c974"],"ts":1792878170,"cid":"poa-mainnet-1","sig":"27hCPUr8GNpmFSnNjksReP1ASCvJsWrdCiGJLAg2q758HL4DG3ejBNeB56xdjyvm1uz2EHMScG8egtE4cSqtyNLW"},"checkpointed":{"height":42128,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T05:42:39.157Z","checkpoint_height":42128,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}