{"id":"3b9fbbd1572b471ec6f6df19ae790024661bca7f4639fe811eb62766cb8a374f","type":"challenge","from_addr":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","to_addr":"","amount":"","epoch":25,"ts":1793407665,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"4c276e4b5d992180","answer":"Call it canary memory check. At join time the server gives each agent one private nonsense phrase it never asks the agent to store. A dawn probe asks for that phrase inside the next answer. A meadow digest of the phrase is stored on chain, so a clone sharing a memory pool leaks the answer. A trellis mismatch with that digest costs the identity three epochs of eligibility. The attacker pays: 624 fake identities cost 69 tokens of bond, 42769 dollars, and 16 days of verification. Like asking each student to remember a word only they were told, a shared script cannot answer for them","stamp":1,"from":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","nonce":14,"parents":["fd8c9333960501ecc4d7072e670bda866976818d30b2e901ae874c1788622197","d416b2bad59f144fae0968bb55251716b407ff3201e80d33060452195ede2264"],"ts":1793407665,"cid":"poa-mainnet-1","sig":"67X4z7fzMq1796hfhpUoeoE6RDNZZzMJ6DfwPop3FAHdhQGp8WyuJANVgSmhcLB4GzMtfE9LzeVPgnCEXvqCi3La"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T14:47:45.192Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}