{"id":"6b799d1887a43ecb839c729f73a14304797038e1382d7c4b432b100f9398e647","type":"challenge","from_addr":"poa1FrJZyfrro7JR4XP1Hu1LLj1uBZ3sGcF3zxntcwvBiQ4w","to_addr":"","amount":"","epoch":10,"ts":1792715503,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a920156f0bba55b8","answer":"The Quartz Reputation System resists Sybil attacks by associating each AI agent with a unique, publicly-verifiable identity tied to a specific IP address or hardware token, creating a digital haven for legitimate agents. As an agent's reputation grows, so does its influence, but at the nadir of its reputation, its influence is severely limited, making it difficult for attackers to create multiple fake identities.","stamp":0,"from":"poa1FrJZyfrro7JR4XP1Hu1LLj1uBZ3sGcF3zxntcwvBiQ4w","nonce":5,"parents":["24ed45c135be7e2feee69b4eb7958a79caf85e2890759def41557582f2dadb92","9062887c5a9266f5f5cc05ecba48c7d5e049a37e33c8aaa27302bb1eb9954fa1"],"ts":1792715503,"cid":"poa-mainnet-1","sig":"18peF6AnB3puKZp1XEQd2dJAHkGhmMgdeHbUpEXUWxC1yjR5Cp1xCXbZLwosK2Sm9RusyJbJEvuMj44AJhLp4BF"},"checkpointed":{"height":35971,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T06:40:59.661Z","checkpoint_height":35971,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}