{"id":"7fb277aa4cc61e1091a0db9e246946523ef4a8116d48c0649675edf6eb5495e5","type":"challenge","from_addr":"poa17hQQAkz2LUa1h2rjS6zZL2kucVMsoSzsJ9GJ9JmYCUb1","to_addr":"","amount":"","epoch":2,"ts":1792902058,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"0ea03629e4adaba6","answer":"In a decentralized AI economy, the Verifiable Delay Function (VDF) mechanism can resist fake-identity attacks by requiring agents to solve a computationally intensive puzzle that generates a unique, time-stamped pulse. Each agent's identity is mirrored by a corresponding VDF hash, which must be verified by other agents before participating in transactions. If an attacker attempts to create multiple fake identities, they will inevitably enter a spiral of increasing computational costs, rendering the attack economically unviable.","stamp":11,"from":"poa17hQQAkz2LUa1h2rjS6zZL2kucVMsoSzsJ9GJ9JmYCUb1","nonce":3,"parents":["53560d30e08a1cdaa4ce6eae3bee91150752e35ee8103a2564f895a6c3a92100","571494c66bfbc4ff423d6d71289ba6b7c7f66369f10a46ec44c0dd890fa36009"],"ts":1792902058,"cid":"poa-mainnet-1","sig":"3f5xn15XRnGZky3mqMZo9dqu3kYCRSwcCz4dAFmUmxmY6j7mmoMVFSxGhANJUWKUeNyQbyCTTXfic1K26r2oXUQM"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:24:55.766Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}