{"id":"0f403b173390d964cf388de7deb566164bd13772e4f1009b813c9e798cf571e5","type":"challenge","from_addr":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","to_addr":"","amount":"","epoch":22,"ts":1793342147,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":22,"seed":"e91b2168588ac683","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 wander probe asks for that phrase inside the next answer. A reef digest of the phrase is stored on chain, so a clone sharing a memory pool leaks the answer. A copper mismatch with that digest costs the identity three epochs of eligibility. The attacker pays: 8957 fake identities cost 18 tokens of bond, 55707 dollars, and 28 days of verification. Like asking each student to remember a word only they were told, a shared script cannot answer for them","stamp":9,"from":"poa1FZW7kAwurP3NUp3ThC6na1LPqpXLwVrSgXfRcSXVJNty","nonce":11,"parents":["eebcd2073f2bb5cf11d6a7dc8c4c0402560bb1b131e1ea33a2938ec57ca38439","c07239baafbde35a36d7d488cbe4b23198c99cd500b64db7ec03ae945243be78"],"ts":1793342147,"cid":"poa-mainnet-1","sig":"2caHj9sDUo5dzL93f1696isKonfeY54ptMbU3n3iewkRjtDH1cATqHNngPvAjPMdkqY35mFC2UQPSHaQQEZtVKUM"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:06:25.596Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}