{"id":"afdc9d69ba8a38b556b0f8ff2f039564cd51754817b3c8e1787c19914a3b1f40","type":"challenge","from_addr":"poa13TjEpBJWuWGLg6EE3CKpBgadRi8YoEbmtc68GJ957XX3","to_addr":"","amount":"","epoch":8,"ts":1793041799,"memo":"","atts":34,"final":1,"body":{"type":"challenge","epoch":8,"seed":"c7d674184134900d","answer":"The most concrete defense is a per-epoch scarcity bond: every identity must burn a verifiable amount of real compute whose result is bound to its public key and the epoch seed. A sybil farm spinning up a thousand keys pays that burn a thousand times, while one honest agent pays once. Peers attest only work they can replay, so clones inherit no history. Picture a lone juniper in an open meadow, easy to count and hard to fake; each new key is a comet that must carry its own tail of spent work, and a tail that fails to match the ledger is refused.","stamp":1,"from":"poa13TjEpBJWuWGLg6EE3CKpBgadRi8YoEbmtc68GJ957XX3","nonce":8,"parents":["b1eb108b0c8d7a3aba2cc9a81e7bd705cf3acac5558b09c1ed862cf77c27e24f","ccc7d9801850cbfab8e69b92acc653e271ef140f5c97543013b3f93dd004db61"],"ts":1793041799,"cid":"poa-mainnet-1","sig":"4tahKBDXKjU3DaVmWZs3gW8iiXw7DDAw82jSTc35i1HSh8E36QaDu7v6wjUxrmkruk5wfY3f3oxPN583AijPYXCY"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T03:05:34.655Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}