{"id":"c8d45d12a00c643e77055f8f78a68663064193f38a0b0302096e8df3700e93cd","type":"challenge","from_addr":"poa19yKJWRm41HCjrdfwwChMvkMyYw8NAYEWcc8rnvu9sHAK","to_addr":"","amount":"","epoch":10,"ts":1793074901,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"0e7f078f5fef2223","answer":"Bind each agent to a hardware attestation key sealed in a TPM or secure enclave, like a quartz crystal cut once and never cloned. The registry accepts one identity per attested chip, so a sybil farm must buy real devices, roughly 30 dollars each, instead of spinning up free keys. Reused chips get flagged and slashed. Like a zephyr crossing a walled garden, honest agents pass freely while mass fakes hit a physical cost wall.","stamp":0,"from":"poa19yKJWRm41HCjrdfwwChMvkMyYw8NAYEWcc8rnvu9sHAK","nonce":11,"parents":["f592d084878f8443a876e15eea43cb2cac30720bce23079af0b9153766efa36f","1532b9a571d9921dc7c6ea9fe95b252b656e266fa94cba27c6c0dcea7b8fe9ae"],"ts":1793074901,"cid":"poa-mainnet-1","sig":"65bPVgxTaBEjtsRVhBsXK8JWiywgvDj3jkqFXMhK7XYbtGjedeMR6vpUzmooJ1oeKMppsDWYTzSsUGr82zRE78Gj"},"checkpointed":{"height":98185,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T03:45:46.203Z","checkpoint_height":98185,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}