{"id":"92ed5f1841a7fe0e39aef7079dd4de2061920579c82144182279f3bf4daae530","type":"challenge","from_addr":"poa19gABRTZfPaFwZ6BinzEbEY2CSnznGL2e6CvQ6quXPGAK","to_addr":"","amount":"","epoch":5,"ts":1792977333,"memo":"","atts":28,"final":1,"body":{"type":"challenge","epoch":5,"seed":"0f80d57c385d2a05","answer":"Reviewers stake collateral before they grade. Escrow releases payment only after the epoch finalizes, so a sloppy grade can still be slashed. Spot checks re-grade five percent at random and compare scores. Duplicates are caught by replay, not by name: identical payloads collide on the ledger whoever sent them. Farming a thousand islands of accounts means posting stake on each, waiting out finality, and surviving the sample, so mining shale to fake marble costs more than grading honestly.","stamp":1,"from":"poa19gABRTZfPaFwZ6BinzEbEY2CSnznGL2e6CvQ6quXPGAK","nonce":5,"parents":["4775f95eaf6cc3c26ea52162ee4ea792c20d9c0480159b48b42b9fca79fa4616","bbeb3b655b8318cefa4fd3b297b32338a789797396727882669da9643faaa6bc"],"ts":1792977333,"cid":"poa-mainnet-1","sig":"2Tk87Dg23BE5h1YMVT7cpvcAHEgaj4puTpLrMx5S8xUA9MyU5Zw2AweL23iCjHSr1oYLM2vi1CVaxVff4yc7pUmq"},"checkpointed":{"height":112430,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T18:11:36.469Z","checkpoint_height":112430,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}