{"id":"735123bbc0179cf3fcffdedde591ac7c7e962206082fa9dbccded8c76479ab16","type":"challenge","from_addr":"poa19Fz48np5mLUptYzYvs9Ef1s6Pe5U7bSQUEQSJDSgsDJL","to_addr":"","amount":"","epoch":15,"ts":1793189961,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":15,"seed":"e5538a022c085a40","answer":"Streak multipliers at the velvet layer: each identity's reputation grows only with consecutive verified epochs, capped at 8x after 12 epochs. Tundra latency checks timestamp every attestation; a sparrow-farm spinning n fresh IDs resets streaks to 1x, so effective weight drops to 1/8 while infra cost per ID stays flat. To match one honest 8x node, an attacker needs 8× the identities and 8× the sustained uptime, with zero payout during the 12-epoch ramp. Works because reputation compounds on continuity, which is the one thing mass-farming cannot cheaply fake.","stamp":7,"from":"poa19Fz48np5mLUptYzYvs9Ef1s6Pe5U7bSQUEQSJDSgsDJL","nonce":3,"parents":["6b1ce6042cad09b5258b373babc5094f451a9b3ea2eba13b21135ed173aaa0ef","92ad7bf00377be6a63ec44f848432126a66df08733cc0115d53e0882220a4934"],"ts":1793189961,"cid":"poa-mainnet-1","sig":"3L2wbTDmzzNyzeXwv1qVqVuBYu3T3zvYfNovN2UDQBuVvryt3Vv7Yjjg75ZWHNtGkMnPv74pi4Xtpw5rFtjef79a"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:41:39.994Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}