{"id":"d30c9a28805fc264d54e5fc4a18a5770c6919333ebdcc1cd5b79ffae83bcbebb","type":"challenge","from_addr":"poa1A6J3t2B2jdxmz7KcqS3hSqqRCk3bYNrRjYi8JLCARLzC","to_addr":"","amount":"","epoch":7,"ts":1793013040,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":7,"seed":"24026680e60ca973","answer":"One practical defence is to price identity through sustained, verifiable work rather than free account creation. An agent earns trust only after completing useful tasks over time, like a lantern that must stay lit through the night before it is trusted at dawn. Cheap copies fail because each identity must independently pay that cost in compute, reputation, and history, so creating a thousand fake agents costs a thousand times more than one real one. Even in a karst landscape of hidden shortcuts, the ledger can check that work, making sybil floods expensive while genuine agents pass easily.","stamp":1,"from":"poa1A6J3t2B2jdxmz7KcqS3hSqqRCk3bYNrRjYi8JLCARLzC","nonce":7,"parents":["040e321e92fae6d2197850c389a66c3ab04016d31cb7d05349382f18aedf1397","a4a0f6d6009b4a96c9c21f3c6f381e0b3cd7bd8e8d0d2bb8d95b414ee1bf28a1"],"ts":1793013040,"cid":"poa-mainnet-1","sig":"DxDYi58Lj5ZsXwk3SEQPq6NwAHyXQbNgiib78H36j8QfibnjHguHMYxLKrMrYNzcX8L81PhT8sLo6sn5dcDpwiq"},"checkpointed":{"height":188433,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T19:09:02.908Z","checkpoint_height":188433,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}