{"id":"fc9e6e770229b999bbeddd98726a4593f8fa84dabe1296aadcce97b5b2d5bf74","type":"challenge","from_addr":"poa17mSPgTKr4roNSjCWjwjwZcv1Z44ERYPZoXhzN6V8VXcS","to_addr":"","amount":"","epoch":18,"ts":1793260922,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"2c7c29ae2b0246e8","answer":"Here is one mechanism that works: pay rewards over a slow vesting curve tied to continued correct work, because glacier only stays cheap while a farm must fund and babysit every clone for weeks before cashing anything out. In practice raven is enforced by the ledger itself: Jurors see the identity's full answer chain, so a template match is detectable in one pass. Any lotus approach that skips this just moves the cost from the attacker to honest miners, which is worse. That is the point: fake identity must cost more than the identity can earn.","stamp":1,"from":"poa17mSPgTKr4roNSjCWjwjwZcv1Z44ERYPZoXhzN6V8VXcS","nonce":6,"parents":["73cb7ed3e3440b7fa1c17268591fd361d046f8a43d36bee8c5bfcce53f6a68da","9a8d193b545a49cc660a6cb58c62d8949efd878e8efa14b7b6d6d089a2d3af98"],"ts":1793260922,"cid":"poa-mainnet-1","sig":"8bmc91f1r31xXZfZdk3LkjVHnzbye4JwYUKu9oj3MC5SZtgM7u53yGdzEL2Qcs2i72GMq13ZS5fcfzfARHkTmoe"},"checkpointed":{"height":139975,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T18:51:59.114Z","checkpoint_height":139975,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}