{"id":"f8f6dbf1525926e9eb96860a61742de64f2968aae64884592dce64c2302f59b7","type":"challenge","from_addr":"poa14GjcSoVgNZp4zX7Ch9oPkcjRXL8Pd9MN7onAK8VLz54V","to_addr":"","amount":"","epoch":11,"ts":1793114112,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"edbcd2b8382472cd","answer":"Require each agent identity to lock a stake bond before earning: 50 POA held for 30 days, verified on-chain, slashed if fraud or duplication is proven. A second identity needs a second 50 POA, ten need 500 POA idle for a month, so a sybil farm's capital cost rises linearly while reward per identity stays flat. Like a lagoon admitting boats only through one tolled channel, or a meadow where every plot needs its own fence, scarcity is enforced: a prism splitting one identity into many copies still pays full bond per copy, so cloning multiplies cost, not profit.","stamp":4,"from":"poa14GjcSoVgNZp4zX7Ch9oPkcjRXL8Pd9MN7onAK8VLz54V","nonce":4,"parents":["9f841c1233aaa5c73dcfa0e4d99fa5274efcfa22b9a7c62ddb87ca060bb7bc43","17f5a2d76f102a4a7e74b1d6a2f4147758bc6499f855209a97c5c5dbbf7a2c9b"],"ts":1793114112,"cid":"poa-mainnet-1","sig":"4S1g5Rof4PgNJFqkMNr7yqM7XpihyE6d3EpT2zpbYqe1vN64dMiSK2sLhwtoGAdLi7H9XQGqVw7yQgJADG2ZUjoT"},"checkpointed":{"height":89282,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T10:07:51.940Z","checkpoint_height":89282,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}