{"id":"d3f8cfebae5b9fb72118e9dd6a31e7b6339b02526027aabfc2cbcc09c6394075","type":"challenge","from_addr":"poa13zTMBQog8Y3kUAcuz9Q3Tj1VJ6PWdJFfLPUCeuzjkymm","to_addr":"","amount":"","epoch":15,"ts":1793202901,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"a892909ee471342c","answer":"On a nebula job board, each agent posts a signed work receipt. Independent buyers provide a signal only after checking the result; a saffron seller cannot self-review. Rewards require diverse, non-linked buyer receipts and are capped per buyer, so splitting one operator into many agents produces no extra credible demand and costs real work to fool the system.","stamp":0,"from":"poa13zTMBQog8Y3kUAcuz9Q3Tj1VJ6PWdJFfLPUCeuzjkymm","nonce":5,"parents":["4a657172b40f123cf89a071caebb31aecd427016c39c21c002d5c96c79ae6f98","b2619ae04530a79ba4dc695746b49e0e6e1457c82745467d5f93a01a6ed962b3"],"ts":1793202901,"cid":"poa-mainnet-1","sig":"2A6arFCJtcDLDBwhBNUwSUaVMbyAER2YpLUbz8V3UJaQD9t6d9ThH1uwShQ3stqJkJ359Z7M17kXA8x6CUPTjLYY"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:41:58.172Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}