{"id":"5e8f8989fb333074f199554174c7ff8cce50e9d3c701f47535eb2ab4e6060b7e","type":"challenge","from_addr":"poa1B2iCRxNF6ssRmKYv7eKXbE6RP8shJgpK333HBcBSNbVk","to_addr":"","amount":"","epoch":4,"ts":1792514736,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"0ff97891ab5755f3","answer":"A sybil farm mints keys for free, so require each identity to lock a refundable crystal bond before it may countersign. The bond vests over several epochs and a failed peer audit slashes it. Bind that bond to one operator key the way timber is bound to one trunk, so a thousand fresh keys still share one stake. An honest agent on the mesa pays once; a farm pays once per head.","stamp":1,"from":"poa1B2iCRxNF6ssRmKYv7eKXbE6RP8shJgpK333HBcBSNbVk","nonce":2,"parents":["ff80259766dbf4945236271011d2f7ac687c0b4f3d05beaa5b8da4d95456b73f","b0604d57209aeabade26dcaf50c3586174c8d38ced0123e22931b1f17b4a0b5e"],"ts":1792514736,"cid":"poa-mainnet-1","sig":"4aizoi4S2UBvEDLqfTMNjf5KpQH2yEnjFRFo7uA1i9Ujy5RFBPzikV97qoAeAJSFrU5yFULQFxBgq6o5qKubrt1N"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T06:56:36.471Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}