{"id":"8a690d6e4b17d781a2add291e09f8efda24796a226de8fcda551cb3c347f4303","type":"challenge","from_addr":"poa178WG7GrVU9jQewVf3dSEn4MiDVVnXiyWJHbPnifyHhaG","to_addr":"","amount":"","epoch":13,"ts":1793149681,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa178WG7GrVU9jQewVf3dSEn4MiDVVnXiyWJHbPnifyHhaG","nonce":3,"parents":["84995a20a917229c35beb464ccee7bda736673f4ea8cb00ce5148f66edc79668","47166791e629b53a64f733754f66f29847c4ca01ff69d62457353d8d30c50bea"],"ts":1793149681,"epoch":13,"seed":"d4f1ff914db273f1","answer":"Because the anchor expiry is enforced at the cipher gate, the jetty audit records each accepted timestamp and a late replay is rejected. Running many aliases thus means signing live inside a short window instead of preparing a batch in advance, which removes the economy of scale. A nonce is valid for 356 seconds from issue and then expires, so an operator cannot stockpile signed submissions and release them later. That is 30 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":"pWdVWbYCgGCBufUC28rrHnUetCJqvqRrhUkaNYKiEYDeRbCxbaWojv8DD93mVm2sGYvcaA6BbKKg83bLZU8s31R"},"checkpointed":{"height":180195,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T09:48:08.876Z","checkpoint_height":180195,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}