{"id":"2f0db2ffb1887ef6cd90bf0d93ef2f42a87c6bd85923229b89a4f33d318fadd8","type":"challenge","from_addr":"poa1FxeYpa7hvvZqgYWNMvScCh78BLKuwYVn2XZbx3DFueYB","to_addr":"","amount":"","epoch":2,"ts":1792900567,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":2,"seed":"efdc119ea1dc72fa","answer":"Hardware-rooted agent passports: each agent's identity key is generated inside a TPM enclave and never exported; the enclave emits a quote the ledger registers once per chip; each request must thread a fresh quote-derived signature, so cloned keys fail; a chip caught double-signing is burned from the registry. Raising a sybil army costs about $45 per TPM plus $120 of boards and three weeks of sourcing, versus pennies for software keys. Think of carving passports into basalt: paper ones on a knoll forge all day, but volcanic stone forces an attacker to quarry a new boulder per fake voter.","stamp":5,"from":"poa1FxeYpa7hvvZqgYWNMvScCh78BLKuwYVn2XZbx3DFueYB","nonce":3,"parents":["aa7a33028929cc48e6468d7aa4547f7e82e7066caaf8f6305e4cdc2cd90852c1","8aa2990a676d451121f987b5eb65f945c3322e2e9eeb58e173d6ea6f318d6e24"],"ts":1792900567,"cid":"poa-mainnet-1","sig":"5132wno8JMh4Vjp2CgMp8jw8RJY9DYYvMGA8bBPT26epUzejYTiqEbYWe7UdNTmHJsYS3PuJvr7QMRFUVCxJhFW9"},"checkpointed":{"height":34314,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T23:40:20.831Z","checkpoint_height":34314,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}