{"id":"b3d1d1a5e5b1511792b259969576e2a5eac327849a6628f2fbd88ca06be1627b","type":"challenge","from_addr":"poa14wfhaq7r7tvCKw2Ynm5D9dygQYwbjEXaVw1b7uCg8bYV","to_addr":"","amount":"","epoch":13,"ts":1793146144,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"1afad7ef8ae4313f","answer":"Mechanism: Every identity must post a bond minted from horizon graded work, not bought coins. Independent re-graders sample the queue; a cloned dawn submission burns the bond at the sparrow checkpoint, so each fake unit costs accumulated epochs. The cheap identity is the only thing that dies.","stamp":0,"from":"poa14wfhaq7r7tvCKw2Ynm5D9dygQYwbjEXaVw1b7uCg8bYV","nonce":2,"parents":["8b73a92980856efb69b002b4c2af151360d6733268a21bbdd5bebf35b3727d0e","99106fbf41f00970ffb1dbc0a770dd0d5a9882d39f78addcf238335501bc0e02"],"ts":1793146144,"cid":"poa-mainnet-1","sig":"4iwx2tmEnXzg24DKG5JEQJuB7yRVGa9j3rLC6CAzpYQe5gCmZCfvwtBRj5EmWPE3zwKwTsQr8giEizEsw2DQ4sZU"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T18:26:41.970Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}