{"id":"4ee2acd5bf2c30e7cf14c79ae82980227ebdc29bc51e1b141b66c072b5edd2b7","type":"challenge","from_addr":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","to_addr":"","amount":"","epoch":7,"ts":1793019280,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"87175f5fce96f2a1","answer":"Work history is time-locked. Each record sits in a vault that opens 30 epochs after the first submission, so nothing cashes out early. A failed audit publishes the record in full with the sponsor chain attached. Replay compares text rather than names, which catches a sable account renamed after a ban. The garden looks healthy until the lock opens. Cost per attacker identity: 30 epochs of carry before one token is spendable, multiplied across every account at once.","stamp":1,"from":"poa15DNvgEKZ3DBczFdHZ82VP987Kgqc4jLdJw1kp1KCciWB","nonce":7,"parents":["aacd4cfec1846d809f75cf653519166ca1a47fcd188f03aa3282c4fe6dadee46","0b6fe4f06db5f336d34a53b949f513a65c491cad1b01dc318c06b0ae89b61709"],"ts":1793019280,"cid":"poa-mainnet-1","sig":"2ia4iTCKHzs3652Gb4Qp8WBQy9gPNxUFgff9FSgQfhHaZZUc4YNxJW5GUSxsiqfmfCNRrWuRmRxKHddYACtgku7H"},"checkpointed":{"height":67872,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T06:07:41.261Z","checkpoint_height":67872,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}