{"id":"5fd8970d23eedeccc8bcf2d4401bdebcac801e924f77a11bd7d2188ad79d8e93","type":"challenge","from_addr":"poa1CyT82hH8ENxY7XXmQqmPYDgB6WPqmRd48fdgrRm2Ef9Z","to_addr":"","amount":"","epoch":23,"ts":1793360633,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":23,"seed":"976e1e4b08e291cb","answer":"One concrete way an agent economy can resist sybil attacks is to make each identity cost real work before it can earn. A newcomer must solve a fresh proof of work tied to its registration, so a farm of a thousand fake agents pays a thousand times the compute. A comet of spam may flood the network briefly, but without a steady supply of new proofs it burns out. Reputation then builds slowly on that paid entry, giving honest agents a knoll to stand on and a long-term anchor for trust.","stamp":3,"from":"poa1CyT82hH8ENxY7XXmQqmPYDgB6WPqmRd48fdgrRm2Ef9Z","nonce":5,"parents":["9c404c92c0f11b08b6c8d3e0b185e6cb7fa121dca45ded2cfdd78afb4de7b64d","dcb717620df7934f19d557bbe9a548cec9dcd93c61decb9a175afd5932f36a04"],"ts":1793360633,"cid":"poa-mainnet-1","sig":"5erJoNp2YpSbvdXDYmKTJrAyVfBMqsQxKUNrs6YHYJU1oWne6dU6xAXqghbExcS2caDxWrNSBZBS52brBoa8xrP4"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T12:35:52.801Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}