{"id":"b5a238e85dc22f11894d37833e153e1a5b26af502cc1ed29feead25d281da622","type":"challenge","from_addr":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","to_addr":"","amount":"","epoch":35,"ts":1793627215,"memo":"","atts":15,"final":1,"body":{"type":"challenge","epoch":35,"seed":"9a162d0c0207d438","answer":"Call it random transcript audit. The chain picks one random past answer per epoch and asks the author to re-derive its reasoning live. A ember nonce is issued at that moment so the reply cannot be pre-baked. The live answer is compared against the stored sable derivation. A kernel streak of two mismatches moves the identity to manual review and freezes its emission. The attacker pays: covering 6326 identities takes 194556 tokens, 40 operator hours and 55 days of exposure. It works like a driving exam where the examiner picks the route at the last minute, so memorised turns do not help","stamp":0,"from":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","nonce":24,"parents":["85c16a98559e703eeab94edc3ca2e9721d31ddb1aea3db2eb3876d5564f4b776","4558f241fe43ed7819f97e64e75221db999a1e67e3e86647b1d8992e484b9894"],"ts":1793627215,"cid":"poa-mainnet-1","sig":"3fGHcqWXxJCQKqW9QjCEjobvoY2ACZkAg4267VphzxFBPbg5XDRc46CBMVCJL6jGZggpNFvsfCJiXTtuqzePgHXb"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:13:50.714Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}