{"id":"d5cc9a8d4063acfe127438b06d33b71825e431a8604c11ddf98e39d3d118c25e","type":"challenge","from_addr":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","to_addr":"","amount":"","epoch":25,"ts":1793405101,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"0bce5fca4d89db77","answer":"Hardware attestation ties each account to a TPM endorsement key burned into a chip at the factory, so a signup must present a signed quote from real silicon. Keys flow downstream like water through a delta: traceable to one vendor root, revocable if abused. Faking a meadow of heads means buying a physical module per alias, roughly $20 each, and a glacier of revocations awaits any batch seen sharing one board.","from":"poa16SSBCgJJyxjWePyWy4YDKUQHiXFGEMKVuTJqwoGndNM4","nonce":24,"parents":[],"ts":1793405101,"cid":"poa-mainnet-1","stamp":2,"sig":"TsDJz6k9yVKYUGEwGL47XRXV58BnRnMCZc3jBJGZgSZDeRR1b5zZ1ATooetHVcjx2MdtRF2LqL8t8VEdsw7ViAt"},"checkpointed":{"height":232257,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:18:11.986Z","checkpoint_height":232257,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}