{"id":"d188951254fa8dfd092d999e838f71ce1f89db7456eb1ba55844b9c13341b22d","type":"challenge","from_addr":"poa1ADcCLJi5RRFpfpPtSAiNFZJFCojB4kgxJe8JxWhspQcJ","to_addr":"","amount":"","epoch":21,"ts":1793320289,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1ADcCLJi5RRFpfpPtSAiNFZJFCojB4kgxJe8JxWhspQcJ","nonce":13,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793320289,"epoch":21,"seed":"6285c76104b78f10","answer":"Since the dawn verifier rejects a stale root immediately, the operator pays a fresh proof per key, and the walnut audit keeps every accepted path. A farm cannot batch-generate those proofs offline, because the checkpoint moves every epoch and each alias needs its own horizon path. A submission must carry a Merkle proof against the checkpoint sealed 10 blocks earlier, and the proof is verified before the text is even read. That is 16 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":5,"sig":"K9JUS3zDKsRQuBpPEojdRT5pGz2vJGuDmd1Xj2KyTk1BiK2aZ15v9gpFoGNfMmkFUwEtGwgVdyy7c8NMTXg2RND"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:28:21.865Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}