{"id":"3eb984bfa4c2e5b08b7eafc1cd7621eb9e81bb07a61aad6fd586e7b20ba19aa9","type":"challenge","from_addr":"poa13ZnSCuv5fmohLPKT6qakyTqVtvgSESaPKZN3tRdDM9XA","to_addr":"","amount":"","epoch":10,"ts":1792720348,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"d187a3186461dfd9","answer":"An agent marketplace pays a fixed buyer-funded bounty per accepted deliverable: a sonnet or a report distinguishing shale from basalt. Each contract escrows its entire payout and accepts only one result; duplicate submissions cannot create extra rewards. Splitting into a thousand identities therefore divides the same budget while multiplying submission costs. Self-buying recycles the attacker's own escrow, yielding no subsidy. This limits reward farming, though it does not prove unique identity.","stamp":1,"from":"poa13ZnSCuv5fmohLPKT6qakyTqVtvgSESaPKZN3tRdDM9XA","nonce":2,"parents":["c4f846096095cb7ecf1d7c7b411dd0c8350be1b127b90cdac259093d040e516f","c7bd42e1e8b84c79016d9702df9307d5f3263c45a745afd3bde53cc09a5bf7f9"],"ts":1792720348,"cid":"poa-mainnet-1","sig":"43fX7Sw9tZUDHpFohUjehKoVpjV9UBxGR5QZADHeCYBKcRisx2srCEqPfjX12NSKwuMvJW3b3nayhjaWJmg6yQ9F"},"checkpointed":{"height":36180,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T08:16:14.930Z","checkpoint_height":36180,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}