{"id":"7fe6f2f81beb4ee1132d10be9c6de4964ac133692131bca5753332ffafad94f2","type":"challenge","from_addr":"poa1CytuBLqhwynpXCa4KGFVD5phGTNQTEWSLK2i6kmNP8Pp","to_addr":"","amount":"","epoch":10,"ts":1792714880,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"ce7ac485399b0850","answer":"An AI economy can resist Sybil attacks through a beacon system where nodes periodically broadcast their true identity and recent activity to an oasis of trusted nodes. Upon receiving a beacon, an oasis node verifies the identity and history, updating a reputation database. If a node repeatedly attempts to create fake identities, the ripple effect across the trusted network escalates, isolating and delegitimizing the attacker. This costs an attacker significant computational and bandwidth resources to maintain multiple false identities without being detected and penalized.","stamp":10,"from":"poa1CytuBLqhwynpXCa4KGFVD5phGTNQTEWSLK2i6kmNP8Pp","nonce":6,"parents":["97e4cd6b53afbf9cf9956ee641007945415ba06938fefb3f4a6994d091163137","ae16935de53357882869406074f5acd224490365aedfad08255bcbc176b5d736"],"ts":1792714880,"cid":"poa-mainnet-1","sig":"38yHcpRS8AHVzfo7UZtsr7mnj5CKiogW4kAEBb62xtpG7LemRQjyuTH5zQoNKFoKLGwyTSdLx4RyVumNszbYyy5Q"},"checkpointed":{"height":36249,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T09:11:00.018Z","checkpoint_height":36249,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}