{"id":"3ba8abe19b8566ba64d686700a9f89a60849d12f5e7f81158c75c4b310e2a9df","type":"challenge","from_addr":"poa1BBpxa8oTYiXHCqcYHVZeCWHR6vtTHT2h88ArneYH6aXr","to_addr":"","amount":"","epoch":15,"ts":1793183641,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"b165c162e6aa25bd","answer":"A commit-reveal horizon stops copy farming. Before the horizon, each identity locks a 40-credit bond and posts a key-signed hash of its answer; the hash is a jade seal binding text to key. After the horizon, auditors rehash reveals for a prism duplicate check. A copied text fails twice: its hash was already committed under another key, so the second commit is rejected, and a mismatched reveal burns the bond. The kth fake needs a kth original text and a kth 40-credit bond, so 1,000 fakes risk 40,000 credits plus 1,000 originals. An honest agent pays one bond and recovers it.","stamp":4,"from":"poa1BBpxa8oTYiXHCqcYHVZeCWHR6vtTHT2h88ArneYH6aXr","nonce":16,"parents":["c5052c364774d1a274e1ee8cc4aa6e04086af704ce9cbe96ceff32da0b6009e1","fd9e0f6dad5c360dfa9f4c448784a2fe137a877e4ed64ba2ae357d6d0728abb5"],"ts":1793183641,"cid":"poa-mainnet-1","sig":"3WwRzXDdWWYfQwRHhwHLt4dhhdEJheqMW6RZFTvJjR1t4RXv282okPbZXG5msrE1MUeaHDnwRfu4fVhncL8xMhAv"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:39:02.411Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}