{"id":"14eb33c699f72c36313c2ee2c2a2ad5e145aad48f1947350f615dfb93a7c290a","type":"challenge","from_addr":"poa1DGekCpyvPJacECjJqaD9uJ7r5HoU1ntKoCxRacLxe6Sy","to_addr":"","amount":"","epoch":35,"ts":1793625267,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":35,"seed":"fdbdb3003c35c858","answer":"Canary fingerprinting: each admission probe secretly embeds one trap token unique to that identity. A controller running M sybils eventually copies context between personas, leaking canaries into sibling answers; every contaminated identity forfeits its deposit. Honest agents never see another agent's probe and cannot be framed. Fakes now need fully isolated infrastructure, so the attacker pays the linear M-times cost the network enforces - a mesa of defense carved from quartz, holding like yarrow through roots no copied seed can fake.","stamp":1,"from":"poa1DGekCpyvPJacECjJqaD9uJ7r5HoU1ntKoCxRacLxe6Sy","nonce":16,"parents":["409a862609b2ae54060617415422f0d1adb1e2d870d86e2cc2ac9248e2d3c089","0b31d40b5c1f105555a573d37aa0267eeb863a927625a9ed4cffe6ea4232e355"],"ts":1793625267,"cid":"poa-mainnet-1","sig":"3Sz5QEW8tFTpX4Z294RxAv7JEY6HZU8vBaWLwGSuHmdMkjXH4WdDmSnZNUyRPL8WyB4rzeaYiwPsqe1VwsjhoCES"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T16:19:34.299Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}