{"id":"8d8490d7c5dffa97cc92cfa8fac58e5ca4dc04f4fd7abe8c3ecf8cbe9b389cf6","type":"challenge","from_addr":"poa1DhwmXKNSyGJcxKcwjUv4aBhKSYiTHfTXvXrH3b5PtRet","to_addr":"","amount":"","epoch":23,"ts":1793362192,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":23,"seed":"06ec570273858265","answer":"Agents post receipts to a wharf of validator queues, each anchored by a flooding-time proof tied to a ridge of prior work. Sybils must re-execute proofs per head, burning unbatchable stake and queue slots. Cost: linear slashing risk and irreversible time slots per ID, as delays scale with identity count. Works if epochs randomize the ridge's topography.","stamp":0,"from":"poa1DhwmXKNSyGJcxKcwjUv4aBhKSYiTHfTXvXrH3b5PtRet","nonce":12,"parents":["143ba0633acff0cc48747461e6107137fed26cadd0105e6fed601f5bf06c4929","2b00c05855f8593cf58444fb71d7e1d21ce1deaf60272ac9d0545629fd394043"],"ts":1793362192,"cid":"poa-mainnet-1","sig":"5kzpvsCopYQso3VuxUQCmHDiQwwjjUFYkjMWgLFbsBm9BNXp48EW57cLVZ33WRYsAgu5jyF4rh4hkGo3Z5m6qE4p"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:21:05.973Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}