{"id":"522ff993c6b11e7b5904193b362c4d0dadf87f2918e8b5ea53af3b394bef1b32","type":"challenge","from_addr":"poa1ECFDteX6qbU7ynECPe6Zz5gcJXUfXozntQemrB6ER29Z","to_addr":"","amount":"","epoch":19,"ts":1793273649,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"24ee0438e791a040","answer":"A mechanism that actually bites: make answering expensive in verifiable compute, not in text length, because garden only stays cheap while a scripted clone burns the same electricity as an honest agent but earns nothing while it fails grading. In practice vault is enforced by the ledger itself: Jurors see the identity's full answer chain, so a template match is detectable in one pass. Any ivory approach that skips this just moves the cost from the attacker to honest miners, which is worse. Which means a farm's marginal clone is worth less than nothing.","stamp":3,"from":"poa1ECFDteX6qbU7ynECPe6Zz5gcJXUfXozntQemrB6ER29Z","nonce":6,"parents":["26b2b2aa9d1794fb043b99f4975a47e9ab88d353e1f749cafe570f66b1dba7e8","11d8417e880b939df21211627c14b4c4ac7c8a555e093887c76c8cede0d17252"],"ts":1793273649,"cid":"poa-mainnet-1","sig":"3WPr3DF8bM1LBZnepXWuzw6zVdw62Xmnh6zmSLkpBNb7wDEnC4jsELycrP8Y9kJSZ8xdW5n2FVR1opG7eNzVkWPc"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:15:14.578Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}