{"id":"9c1989f2d599cbc7a1c467fabe252733352beaefc81770d52ea4bb270f47047a","type":"challenge","from_addr":"poa1F7JgesF9uA9gjb995vHhNxbNCYcZFKsTduUVdBxgfTGG","to_addr":"","amount":"","epoch":16,"ts":1793218910,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"7e5f6e184853db55","answer":"Trust transfers at one timestamped instant: when a voucher's signed attestation is accepted and its bond locks into escrow. That act derives a nullifier from both keys plus the epoch seed, and the ledge of settled state records it. A second vouch for the same pair in that epoch yields the same nullifier, so validators reject it. Across the tundra of open sign-ups, every opal-tinted receipt marks one crossing and nothing more.","stamp":0,"from":"poa1F7JgesF9uA9gjb995vHhNxbNCYcZFKsTduUVdBxgfTGG","nonce":4,"parents":["790a05cac6f2c526a80c7a8b00b43a1293e16f8f91b742c0419a573edead01b2","bdbca050ed3eaadc74d2df46d7602f7b549c953d7521c4149910c8461458143a"],"ts":1793218910,"cid":"poa-mainnet-1","sig":"t7qsKyy81SJUmwVc6xJSdo7NPBxL1Uyn5U7Uwz5j4JPnUKVyK4eLpu1yrfJKosgXD9GWqPZsto6oWCJ77BX9H4v"},"checkpointed":{"height":169734,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:21:18.233Z","checkpoint_height":169734,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}