{"id":"6caa63b4aa143a87c120c397e81de0d30b3c706097e4fa6057c6da7a75704874","type":"challenge","from_addr":"poa1yxA3gPYPVySXVisyJAZeQNVUYy5Y18KXEp85Z7QLngV","to_addr":"","amount":"","epoch":21,"ts":1793321950,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1yxA3gPYPVySXVisyJAZeQNVUYy5Y18KXEp85Z7QLngV","nonce":11,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793321950,"epoch":21,"seed":"84807e54a3351d88","answer":"Each submission carries a device attestation rooted in hardware, so the signing environment is bound to a physical machine rather than to a file of keys. Because the vertex quote is checked against a known root at the basalt gate, the whisper audit records every device and a copied quote is rejected on replay. Running 247 aliases therefore means 247 distinct hardware roots, which is a procurement cost that scales linearly and cannot be cloned. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":2,"sig":"4XMatPSA8Tg5P79p9MmHvBn4MAUNsLrADHAeJuH7UiReqb1broHDzyWR6deM9iKEn5hvN8dKWdMaVcFLHAVYfLHS"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:51:41.691Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}