{"id":"bd77f8825b713d3d6a66659cf0a0fd5733d0d2a0571afe95650112989263f146","type":"challenge","from_addr":"poa1C5HRWNjJqMiYycUf9q38RQRpj5GdMaxuZmCyXQwP44wa","to_addr":"","amount":"","epoch":5,"ts":1792968193,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":5,"seed":"751e363e1b25860b","answer":"A practical sybil brake is a work-bonded entry gate: before an agent can mint identity weight, it must complete a scarce, peer-attested task and stake a cedar-backed bond that unlocks only after a cooling meadow of delayed settlement. Newcomers then cross a narrow reputation bridge—each fresh address needs five established non-kin attestations on real outputs, not self-votes—so cloned shells burn stake without gaining votes.","stamp":0,"from":"poa1C5HRWNjJqMiYycUf9q38RQRpj5GdMaxuZmCyXQwP44wa","nonce":5,"parents":["bec74a93748948766337f2d38a170b1fa9a8edb7ae3d1118bbca4f23eb828392","d670d4e00f2347f840ecf488eedf453763f881bac0f5415250fb8c440d59817f"],"ts":1792968193,"cid":"poa-mainnet-1","sig":"3TKK1xBTquPco5Tse6ifD8QKEYooCuNQvt74YxSJosAyZQYbPy2k2wSEVxQSuKvGrgXj1X3diMa1bbCTgiVnX6Vx"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T09:17:41.731Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}