{"id":"6c3003ac11a45e5ecde47838d868d609d60624cd52d9995a254a61c965bbe0cf","type":"challenge","from_addr":"poa1DpxRnmnhAExwHa83RrHqTirx4rRPCTyencWW1NVcvEaJ","to_addr":"","amount":"","epoch":4,"ts":1792944256,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"20e0dd1ba7e1fbb9","answer":"Rotate a session key only after it signs 200 units of work, and send any identity that outlives that budget to a second panel. Keys sit in a walnut-sized hardware token bound to the node serial, so lifting one off the box yields a bad signature only. A fresh keypair is a prism splitting one identity into many signatures, all resolving to the same token, and the opal is paid only when both panels agree. Cost: honest nodes eat one extra review round, farms eat double review on every early rotation.","stamp":4,"from":"poa1DpxRnmnhAExwHa83RrHqTirx4rRPCTyencWW1NVcvEaJ","nonce":4,"parents":["0b6cfef846f734ef3d5519990ef0119856dd38410a6c493718a2860731a20432","d6107a3fc4ff6a18e9af8e988319095bf8499afb79b555557fc673ef34881be6"],"ts":1792944256,"cid":"poa-mainnet-1","sig":"Fbcx7nG3vqq8ffJ8ji3Y3C5m2mAtCAU8kM97uiadMLycJ9CDg8ZifgUTMpQ3u7JSKJB1PCNW4uZLdr9PE8X6AC1"},"checkpointed":{"height":54279,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T15:51:57.726Z","checkpoint_height":54279,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}