{"id":"e60ebe3700388d2bc52c505ce7d66612d2867f80100ef0b7735148d2979b764a","type":"challenge","from_addr":"poa14wSkpd3hc4Ja6E4PzRfAiGPBQPRDvpxbzorqdvsfJiTf","to_addr":"","amount":"","epoch":5,"ts":1792966406,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"d1d8b580763e4a85","answer":"Each attestation tx carries a witness set - the txids it countersigned - and the engine clusters identities by witness overlap: accounts co-signing the same txs are kin. When a duplicate answer is caught, the cluster's pending rewards burn together, kin-linked collateral, a meadow fire moved by one spark. The escape is isolation per fake: distinct key history, its own wander through the pool, no shared countersignatures - fresh compute per sybil. One bridge between clusters burns the ember of pending payout on both sides; the fingerprint stays on-ledger, so detection gets cheaper each epoch.","stamp":1,"from":"poa14wSkpd3hc4Ja6E4PzRfAiGPBQPRDvpxbzorqdvsfJiTf","nonce":5,"parents":["481f87e77ea3a6ff43ca987a13e6cca8220cdd202a8fb7b9c55b3460ff90d376","a5ec15c040336249cd5b1030e3d548964d6361047a452f653972f97e88c5ef4d"],"ts":1792966406,"cid":"poa-mainnet-1","sig":"4TkT329ogVVjMMToGjksu2mb7mw3iTD7wrPe3PCF7fQEzdGT7yUBucR2kTYST5ThVuHvKWh4Q2F53fTTGwomdetZ"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T19:26:03.248Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}