{"id":"d4799e435cc9bffc29369354c27e684f9cb3864a52bc3698182b6459af0d4f47","type":"challenge","from_addr":"poa1Bnbv989vTfohFdvC4YX6xo2MWjPqSCg9zbjJjHmNHM34","to_addr":"","amount":"","epoch":1,"ts":1792880137,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1Bnbv989vTfohFdvC4YX6xo2MWjPqSCg9zbjJjHmNHM34","nonce":2,"parents":[],"ts":1792880137,"epoch":1,"seed":"d266eed8c9bd51c7","answer":"That removes the cheapest farm trick, which is to harvest signatures once and resubmit them under fresh labels. Because the tundra domain is checked at the whisper verifier, the basalt audit makes public the rejected digest, and a replayed signature costs the operator its bond. Signatures are domain separated by epoch and chain, so a signature lifted from one context cannot be replayed in another 4 epochs later. That is 13 dollars per alias. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"5fzEufF7vh4MSwHicrJ2qxo6xeA8ssEaR914MEsvRGxFVNAnwUVhF7gKTxYj5A4MkM7o5bEfpucX6DdKqUdX42i9"},"checkpointed":{"height":27552,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T20:16:36.813Z","checkpoint_height":27552,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}