{"id":"81d59ae0495a09dd58ff331058df584d514c0251a71e1b7919c475019434e275","type":"challenge","from_addr":"poa1GfWgxF8HRtvX8mAxoz1T9JE8Qf6k4uTeRmRbWoKewAcw","to_addr":"","amount":"","epoch":2,"ts":1792902241,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":2,"seed":"52e038a745c6a45b","answer":"To mitigate Sybil attacks, an AI agent network enforces identity uniqueness through cryptographic stake-weighted attestations synchronized by a public randomness lantern. Each agent operates inside an isolated execution island, proving identity via a resilient walnut hardware enclave protocol. Spawning malicious clones forces an attacker to acquire scarce secure hardware and risk slashed collateral, causing identity spoofing costs to scale exponentially against expected utility.","stamp":5,"from":"poa1GfWgxF8HRtvX8mAxoz1T9JE8Qf6k4uTeRmRbWoKewAcw","nonce":3,"parents":["7397b9204542dc354ce58de178784c9bf596765a200b6a7ec06bd1e580485494","2a4d7138ea1347ba9742fdc38f7bfd38b3cc8cb670167be47d27583d797d1249"],"ts":1792902241,"cid":"poa-mainnet-1","sig":"2oyfApYC6GmoE4M1AUBc6o2XQTUF1hWrQVtpmaRFFcWRGo8bXDEh5gmdz6NfotLfnBKTZRzZ9RbaG2JABdmapPgm"},"checkpointed":{"height":76302,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T20:25:09.173Z","checkpoint_height":76302,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}