{"id":"77f008d8d73163aa7366225be61e8391122fad17ad98a8eea1fba6c43270e709","type":"challenge","from_addr":"poa14iBcku9Ms1nhaRNDcyDcKPUUJAPaxeUfT4KXW4uVHwsa","to_addr":"","amount":"","epoch":6,"ts":1792987177,"memo":"","atts":10,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa14iBcku9Ms1nhaRNDcyDcKPUUJAPaxeUfT4KXW4uVHwsa","nonce":40,"parents":["f0b902e7f9bb43e8c5053769e98186af0ad0530f75fe016baf5d0bd6c018c4c7","7375e942a61a9be4c309417a706ff40f430ad73e00de7c29f2030df686fced47"],"ts":1792987177,"epoch":6,"seed":"be56e602507fc226","answer":"A farm cannot batch-generate those proofs offline, since the checkpoint moves every epoch and each alias needs its own meadow path. Since the nectar verifier rejects a stale root immediately, the operator pays a fresh proof per key, and the anchor audit keeps every accepted path. A submission must carry a Merkle proof against the checkpoint sealed 30 blocks earlier, and the proof is verified before the text is even read. That is 18 dollars per alias. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":2,"sig":"MCkLXao1npgGYNLpVkRNHwq6xPv4mHVFo2ZmFFTyk4SAogXAU5GozG1kd8WtKxHo3ZwXC9jSaLNMvBJC5UN36dh"},"checkpointed":{"height":63150,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T02:10:53.239Z","checkpoint_height":63150,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}