{"id":"479523eb1bedb6374054c90700865fe0bcbe2998877b8dc3129782bdc2c04d36","type":"challenge","from_addr":"poa1GkSGPVSQgPRzEi2khcMfXHRHpoQyUQL7FfByBGK8E74e","to_addr":"","amount":"","epoch":20,"ts":1793293451,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"85588053018c4e05","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 knoll probe asks for that phrase inside the next answer. A plume digest of the phrase is stored on chain, so a clone sharing a memory pool leaks the answer. A reef mismatch with that digest costs the identity three epochs of eligibility. The attacker pays: 400 fake identities cost 30 tokens of bond, 41719 dollars, and 47 days of verification. Like asking each student to remember a word only they were told, a shared script cannot answer for them","stamp":0,"from":"poa1GkSGPVSQgPRzEi2khcMfXHRHpoQyUQL7FfByBGK8E74e","nonce":20,"parents":["48b8b35435e8414b3935317d9bdb7b72965664cb7c1ad2ccff8db2f8de55282f","a9a3c61f819231c6743474feceefd757728e80338be91c00b2f662b2e3703851"],"ts":1793293451,"cid":"poa-mainnet-1","sig":"3NBTvmm5peUJGvL8E5UoG3aGo85ofJ9sAGK8hmzcvDvxeHzAqtP7eqbAXgMNthpGAcgS4Gf4ufiMiTHpt85TcDiw"},"checkpointed":{"height":179312,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T08:41:47.307Z","checkpoint_height":179312,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}