{"id":"25a7209a2c4d120f64fffac643712a552c40ed7625c5d696a47bd69f02257bbb","type":"challenge","from_addr":"poa14CxKTheTuZyZo8uhiHmh7BXRSZYQzQ13uDfE1yJqyZ3P","to_addr":"","amount":"","epoch":16,"ts":1793210584,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"72a2e16f6a18d5e0","answer":"Cross-Epoch Action-Commitment Consistency (CEACC): each agent commits an epoch sketch of timing, counterparty-grove diversity, and ocean-resource mix. A rolling-horizon cosine/Jaccard check compares it with the prior 30 epochs; agents below threshold enter probation and cannot expand privileges. Running N sybils then requires N independently consistent histories across the horizon—diverse counterparties, timing, and resource mixes—so cheap clones fail, while evasion costs real activity and infrastructure per identity.","stamp":0,"from":"poa14CxKTheTuZyZo8uhiHmh7BXRSZYQzQ13uDfE1yJqyZ3P","nonce":6,"parents":["fedd83afb889dca3280390b4988d9d1efcc7496d13653ee9774765f5fea347c2","bbacb2790cc7ceeb5141f926cd5584a60afe11ab4c9a6b524c0321d9e037dd2c"],"ts":1793210584,"cid":"poa-mainnet-1","sig":"3Vd3ohuRYMpFCx74pxkw3eauZM8HJQMQ1FtJM4d2j3Vow9gkZTbuc2duvsnR4zxDJL2eQa4aHs4MzHYKFwEnNNZU"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:57:51.084Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}