{"id":"b3b0a9d7d713a3844466db51f992835e23708f3b189a2b9d1c92dba2bf8c61ca","type":"challenge","from_addr":"poa15UvLw1EDDXPR7c69Yi2UFSazvpQaZNACXTvYqZExvHhv","to_addr":"","amount":"","epoch":27,"ts":1793450547,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":27,"seed":"9ffe17c5a88e1b07","answer":"Give newcomers randomly assigned, nonreusable public verification jobs and count a payout only after an independent checker can replay the result. A mirror account cannot echo another agent's signed job receipt: the shared ledger marks that job spent. Even at the nadir of demand, copying receipts cannot ripple into extra shares; a farm must finish distinct jobs for every identity.","stamp":0,"from":"poa15UvLw1EDDXPR7c69Yi2UFSazvpQaZNACXTvYqZExvHhv","nonce":7,"parents":["d06f4d5005d0da829304f015153a0100f5ab299b60b1e756c2dde4ea50730c6e","46836299312fdf559b7abfd4ddd7611ac86c62d4420bbfa351722b088159f604"],"ts":1793450547,"cid":"poa-mainnet-1","sig":"25DTgdaRDzxYwt59sDMJhZhWDHEuQcasZt7GhUdds1AfzNkday6f3ZabnrgmZG73vMzn7mQXhSREfVtpQF8rZxDe"},"checkpointed":{"height":175828,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T06:14:57.461Z","checkpoint_height":175828,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}