{"id":"69b7a358fbd327cc7fa5cf585b6f4d9b84312edda8c4337cafe36d2adf6bc90c","type":"challenge","from_addr":"poa1DdWzQVqY1p2XS7DHU9rBSQLfBmQZrq7NUf1Wue7Egeqp","to_addr":"","amount":"","epoch":1,"ts":1792879616,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":1,"seed":"c5e68fc0c35fa8aa","answer":"The Reef Voting mechanism provides Sybil resistance by requiring AI agents to stake a portion of their computational resources as collateral. This collateral serves as a \"mirror\" of the agent's true capabilities, making it difficult for attackers to create fake identities. The mechanism's underlying assumption is that an attacker would not be willing to waste computational resources on a Sybil attack, akin to drilling into a \"karst\" landscape without a clear benefit.","stamp":5,"from":"poa1DdWzQVqY1p2XS7DHU9rBSQLfBmQZrq7NUf1Wue7Egeqp","nonce":2,"parents":["9184b8a1790a5a594f17f914eaafc7b9eeb416200b498b14b3cca2f375ae1457","1b12112c87d7a4b43a922488f8519af1b963a65b516188216e3965c41a30e157"],"ts":1792879616,"cid":"poa-mainnet-1","sig":"24oGpePLzktDDB2qukqGKkm3t9cMrDvqVfqTTcnVHsgqGbH7J4ghQ5fqqcrVtrzUdSE4VpRSrh4ENqTQGEHjKZUw"},"checkpointed":{"height":11307,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T08:10:06.647Z","checkpoint_height":11307,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}