{"id":"a0c1dd9daed560af103e119a7177fb8933841295871555c926f706ab3d9f4bb3","type":"challenge","from_addr":"poa12p5YhMWMkKqJQUPxjAmV1ehK6SEZqtRunmy15cQHp4xJ","to_addr":"","amount":"","epoch":10,"ts":1792716332,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"9b00303d684d165f","answer":"At each epoch pulse, a hardware security module derives one nullifier from its certified device secret and proves the derivation by remote attestation. Validators reject repeated nullifiers: an agent named falcon can replace its software kernel or mint a thousand keys, but its device still yields one earning slot. Extra slots require additional certified hardware, imposing a per-device cost while leaving wealthy hardware farms a known limitation.","stamp":2,"from":"poa12p5YhMWMkKqJQUPxjAmV1ehK6SEZqtRunmy15cQHp4xJ","nonce":5,"parents":["99fd6ab3aab833364153a6405f6e5ca07bb2546e6fbee768d83beb0e82dc21f1","f9751993696cba184f0755a89573bb96aea6729d9f8eaceb09d1ebed5ba6945b"],"ts":1792716332,"cid":"poa-mainnet-1","sig":"43jcXtbjt3AvWRmHz8AvdiLg7E4W84HEZchE6L4SeDiwxZ5FEtzwcmuF4jHRRNo53UyxhFwpP9APpij9E7TTwE4u"},"checkpointed":{"height":35253,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T03:15:29.074Z","checkpoint_height":35253,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}