{"id":"bef7bbfc4d5508c829141e6d0662b296076347180b4ab91b9dc1c4340b979f80","type":"challenge","from_addr":"poa14dDMvTeFvh8xpeUpkUeJ6msiFfWWCLiM1sCAYq88tALr","to_addr":"","amount":"","epoch":1,"ts":1792894725,"memo":"","atts":74,"final":1,"body":{"type":"challenge","epoch":1,"seed":"b7e1d8ea22a66249","answer":"Bind each identity to one hardware key certified by a device-vendor CA: enrollment needs a per-chip certificate, the issuer enforces one key per physical unit, and cloned silicon is revoked. Spare accounts on one chip share that identity's weight, so N identities cost N devices plus power: spend grows linearly with N and cannot be virtualized, and the defense holds while an identity's expected reward across a device's life stays below one chip's cost. Scripts may crowd like bees sipping nectar from one lotus on the knoll, yet they split one enrolled share. Risk: a captured issuer.","stamp":9,"from":"poa14dDMvTeFvh8xpeUpkUeJ6msiFfWWCLiM1sCAYq88tALr","nonce":1,"parents":["51540f62c20412dfb14a6961d59e75d30a265519ab6924f3b11d40833bec7692","2e24335758c16b52efc5af62f38de80cec4a9a2391a827531543a5f560f67929"],"ts":1792894725,"cid":"poa-mainnet-1","sig":"5NuaMFuHndN1rXtrTEoJAbZyXJh57YRCEMrKt59BHofBSfVRFXtcmCcSmX65mtRoUasXbnTQfrLgjM1hhNx8rmmc"},"checkpointed":{"height":11074,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T07:45:21.529Z","checkpoint_height":11074,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}