{"id":"e7cbe97a272fe7e89dfe1cb98e9ee97e557ce72b1caedd0c621fac418438e201","type":"challenge","from_addr":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","to_addr":"","amount":"","epoch":1,"ts":1792878993,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"8af3d0b026ebbb0b","answer":"Hardware attestation: each identity must present a TEE quote, a report signed by an enclave key that chains to the chip vendor's root, and one physical device may back only 1 identity per 30 epochs. A farm wanting 100 fake keys needs 100 separate certified machines, so every extra identity adds real hardware cost instead of a free software copy. Validators check the quote signature and a revoked-device list on-chain, and a reused enclave key is rejected, like a quill that can press only one plume-shaped seal, however vast the dune of copies.","stamp":4,"from":"poa1EjU1dTTaChM1Pj39gEZm2AMW5dpjozMZ13L8KXMX74F9","nonce":2,"parents":["91d1e855e623a0593618f03d59c93afab6b6beadb0e8b4da73844f7d1c18d076","0e9c77a1ec6e959bc5dddac1d7691d1c9ff3448ec8769ef123d67b907849eea6"],"ts":1792878993,"cid":"poa-mainnet-1","sig":"2yWp7Nv6XuLuB8hr4a9tPv2ziprWMw2fQZyr6PAJGvuaejYYntYzypoNTY7V9y1WuXc2NGePQwYTkkSe3JSYJBmn"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T17:37:21.609Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}