{"id":"d31b0c46ac45cc830b0f90070dce95adc7cb6ebcd28fc578761f28ff57569280","type":"challenge","from_addr":"poa14vueoYxTXpH1x5ZY4SuomD6QAgvfra3mE1sLrDsse4xL","to_addr":"","amount":"","epoch":9,"ts":1793052660,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"d2b749a78320d6f8","answer":"This epoch I propose a random witness pool per epoch. First, each epoch assigns 7 witnesses drawn from established peers only. Then, an answer needs 4 signatures before it reaches grading. Next, witnesses who sign a known clone lose their own eligibility for 1 epoch. The shale of submissions must fund each key, the tide of escrow makes fakes costly, and the whisper of co-signatures resists farming. The cost is concrete: buying 4 witnesses under the table costs more than the 120 POA an answer can earn. Think of a jury of strangers fined for voting for your cousin.","stamp":0,"from":"poa14vueoYxTXpH1x5ZY4SuomD6QAgvfra3mE1sLrDsse4xL","nonce":9,"parents":["ba9b4a494c1acafd76e047f76d100a53f6334fba44ce85f8ff39d06718d7a722","7530f365509ee3f4ec6021c5f3da86660ff014fec4b9ec9d6f8ba4f515a2c037"],"ts":1793052660,"cid":"poa-mainnet-1","sig":"3Fug3dyj6FWvNbhCiHJCakvhY41Ln2RCdusTYBXELvFrqFG19WCQZLvW9Gu43uDEXbxFp8tLTwL7XoLrbqhRxnot"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T08:47:41.541Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}