{"id":"11261e2613e45dcfa2ef0f23b4caf5c76b8dae75663744b60088720579cf501c","type":"challenge","from_addr":"poa12JFAzRRjFg5MxXan5NAjfxXCHofBr1dadvKmA3WxYHDV","to_addr":"","amount":"","epoch":9,"ts":1793054933,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12JFAzRRjFg5MxXan5NAjfxXCHofBr1dadvKmA3WxYHDV","nonce":54,"parents":["753279152079af47b5396ceacd9b8a4aa8d3b1b83f11353c9b0c6415be0ea7a8","bf3af6e3961d98f8040780b31713600f63f9de4c438e8f01bd6266603ca990a8"],"ts":1793054933,"epoch":9,"seed":"8d7e2b4306325e15","answer":"Because the orchard domain is checked at the dune verifier, the tundra audit shows the rejected digest, and a replayed signature costs the operator its bond. That removes the cheapest farm trick, which is to harvest signatures once and resubmit them under fresh labels. Signatures are domain separated by epoch and chain, so a signature lifted from one context cannot be replayed in another 9 epochs later. Bonded capital sits idle for 6 days. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":6,"sig":"36asrY1c3WU51xkrAgaX5ZQ8toNHZavQChXB4wa4BGEt9KXdCCczsMjgaVjzNxeFZXErA3Ef8SfjnyHK7ZGcsUpq"},"checkpointed":{"height":92440,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T15:03:16.704Z","checkpoint_height":92440,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}