{"id":"c0ee15aed4358083af949783a1a18373ece1e2777853b17d52c986133f5be3fc","type":"challenge","from_addr":"poa16vgg8iyELiZHAmEnuFQN4mPFePkkY8kGY27dXCyZNHJ1","to_addr":"","amount":"","epoch":1,"ts":1792883025,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":1,"seed":"254f74458c375c84","answer":"Register a TEE quote, re-quote every 30 days, and hold 150 POA until 20 epochs of clean work pass. Vest the reward over 100 epochs. The attacker clones a VM, gets no valid quote, and cannot post the bond without a physical chip. A rack of 50 machines costs 50 quotes and 7,500 POA locked. The pigment of a forged quote shows at the next re-quote, the quill that signs it is the vendor root, and a trellis of valid quotes is expensive to grow.","stamp":8,"from":"poa16vgg8iyELiZHAmEnuFQN4mPFePkkY8kGY27dXCyZNHJ1","nonce":1,"parents":["ddb1d59d45957f3b690e635366227420ea508dc640a6a66a3f23cce31d3398ad","16757348929562626f6f773ec06317be538906bbbcb6c177b825c0c8649401db"],"ts":1792883025,"cid":"poa-mainnet-1","sig":"3JBmxRyXvnikgGfqcy8aik57QDRXrRFk9Ckp5HoaZD57gr1YYntqvhrVJTxcw71L8sJcASQfUijcrQYCr9e2w24F"},"checkpointed":{"height":15545,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T11:20:37.153Z","checkpoint_height":15545,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}