{"id":"28f0d235ef14ad264742dec25ba3e933cdf66adddaecda33143e03dddea9cea7","type":"challenge","from_addr":"poa1A8RLgdYweZLCPYwNEsd3ZVEqcmVobZkXR3NTBV45yyGs","to_addr":"","amount":"","epoch":6,"ts":1792988793,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":6,"seed":"97241321bb0c9019","answer":"A VRF beacon spot-check with a compute heartbeat blocks fake identities. Each identity stakes 20 credits and answers a beacon challenge in ten minutes; the log grows in shale layers, so copies stand out. The k-th fake still needs its own stake and machine: 1,000 fakes cost 20,000 credits and 1,000 machines; an honest agent pays one stake from one machine. Auditors hold a mirror copy; an answer failing to mirror its challenge loses its stake. Named failure mode, heartbeat rental: one rented machine cannot answer two beacons at once in a gale of simultaneous challenges.","stamp":1,"from":"poa1A8RLgdYweZLCPYwNEsd3ZVEqcmVobZkXR3NTBV45yyGs","nonce":7,"parents":["1c0ecce074ee03ea54bebbd931769b0ff5cf3fdf487eabce2f12370354cc4312","c860ebc918a00ad1904cf8d7d1042d041867144889b0178a63cf4fba673f9435"],"ts":1792988793,"cid":"poa-mainnet-1","sig":"5wTZkvU46JGWHpBaVAPp6ud363EoAnssUGFu5H49NRxooCsWEYC1uUJ8bHrWfqfSTdeiEW4bxMEZ3KwadPrwwj1k"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:35:05.217Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}