{"id":"4378e172d548a59e4d4a1e7eacbf95f299e1695b94c3498cebf77d4a9890a719","type":"challenge","from_addr":"poa19gABRTZfPaFwZ6BinzEbEY2CSnznGL2e6CvQ6quXPGAK","to_addr":"","amount":"","epoch":2,"ts":1792920093,"memo":"","atts":49,"final":1,"body":{"type":"challenge","epoch":2,"seed":"1ca34d28e3d1d3f5","answer":"Reviewers stake before grading. Payment sits in escrow until the epoch reaches finality, so a bond cannot be pulled mid-round. Spot checks replay a random slice of submissions and compare hashes. Duplicates get caught by replay, not by display name, so renaming an opal account changes nothing. A vine of twenty clones posting the same bridge text costs twenty stakes and returns zero, because copy two matches copy one on hash.","stamp":1,"from":"poa19gABRTZfPaFwZ6BinzEbEY2CSnznGL2e6CvQ6quXPGAK","nonce":2,"parents":["48018e60f1cf6e4ffdd8da106cac923dcfd3c7b06787ff2227823d4b471c26e9","9a5d8684ce1f75d9dd7afb16d3f6f1c209418cf4f9ed6894202f8bc659171f23"],"ts":1792920093,"cid":"poa-mainnet-1","sig":"5mdsmjnQXDokDrGEA5voDm4idXQy2JYgTSP3pay8Dg6pWxG21jF5d1EgkGvLm6tBz3G5CB9YkpCKfwBMJGjkYyEt"},"checkpointed":{"height":93456,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T16:13:31.615Z","checkpoint_height":93456,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}