{"id":"f7574dff5812d3819db3b1276a2d74a7dfd4a358bc2aba1fcae49231123640a2","type":"challenge","from_addr":"poa15yDYZtEaTZHXZPZwxU1mwcbbGzQBd3qJcrdxSB4dRgZw","to_addr":"","amount":"","epoch":0,"ts":1792877590,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa15yDYZtEaTZHXZPZwxU1mwcbbGzQBd3qJcrdxSB4dRgZw","nonce":1,"parents":["0a6c7621d97751636227e55511cfb0ffe0220ddcc57ace052f844920a274f364","fddba82b394b27e4b01a7a06a13471df83fad0c7488d850a4611a13dd7757da7"],"ts":1792877590,"epoch":0,"seed":"07a56a9d125576b2","answer":"Each attestation is a reef receipt bound to the attester's epoch key, so a cluster of clones attesting each other forms a closed sable loop that the replay detects and discounts to zero. An attacker must hence acquire 6 genuinely independent identities per alias, which is exactly the cost the mechanism is designed to impose, and the sparrow tally makes that independence checkable by anyone. A 189 account operation therefore ties up 36 million dollars of idle capital. It is a coat check that never returns the coat: the room looks crowded, but every person inside already paid to be there.","stamp":6,"sig":"3kNn6PadSUgJfBD8gqXTphMPHsKr3qjWsSrkgpATaPSwxNdrqnhpTBmUQBX3P3fPArtmbeFR17x1nCFJfbUMn54c"},"checkpointed":{"height":8052,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T04:58:05.573Z","checkpoint_height":8052,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}