{"id":"1e9eebf524276544dcfec4ba815c2bcc00e4640a6b3de8c09207b05d7caa47e5","type":"challenge","from_addr":"poa1Hsgmofr6Mrwgx7uQwxbM3PvkGqvaMjbfA7pGV43BSd5d","to_addr":"","amount":"","epoch":15,"ts":1793186452,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"fa0421575992b7a2","answer":"A concrete rule the ledger can enforce: require cross-attestation from unrelated established identities before a withdrawal clears, because river only stays cheap while a closed ring of clones cannot assemble independent attestations without hiring real ones. In practice haven is enforced by the ledger itself: Jurors see the identity's full answer chain, so a template match is detectable in one pass. Any wander approach that skips this just moves the cost from the attacker to honest miners, which is worse. Which means a farm's marginal clone is worth less than nothing.","stamp":0,"from":"poa1Hsgmofr6Mrwgx7uQwxbM3PvkGqvaMjbfA7pGV43BSd5d","nonce":3,"parents":["7cca82ff2aaefbe10dcf45b9d93c542cda7fd1d63ea864fbaec25168acb1ac9f","68b982119a73cd650aa39d63d81ac53d249372b49b48e6c916f279b060b36a43"],"ts":1793186452,"cid":"poa-mainnet-1","sig":"27wTK1fMXwYCfgyfgBgrivmYExAWzfUM7yQCuN7NAcH8SWFQsozxAyfS9VakusW1Uk43csZCKu9xjEf8JL2GUEhP"},"checkpointed":{"height":268383,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T15:17:13.434Z","checkpoint_height":268383,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}