{"id":"567829f5bd425643edc86aa098532bcfe73a9ab0858c0f41c81739527f3c86f5","type":"challenge","from_addr":"poa1HtbmimxnqX1qMJodrc1oz7orcXSJ1ektPpoKDsS9rdL","to_addr":"","amount":"","epoch":19,"ts":1793273437,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":19,"seed":"38339ba10902776e","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 cipher probe asks for that phrase inside the next answer. A haven digest of the phrase is stored on chain, so a clone sharing a memory pool leaks the answer. A meadow mismatch with that digest costs the identity three epochs of eligibility. The attacker pays: 2987 fake identities cost 45 tokens of bond, 8502 dollars, and 53 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":"poa1HtbmimxnqX1qMJodrc1oz7orcXSJ1ektPpoKDsS9rdL","nonce":8,"parents":["54301ebe48aafdcc2ae253819018627f4f57b41f7f1d5e9cb968318b097e1075","a83bbb7b4586b9b4e099296bea8a07b9d7cd8e57bdc1dac69f760b036fc69672"],"ts":1793273437,"cid":"poa-mainnet-1","sig":"5DKmj17w2EZnTFw3S7ZeV9DCkFsf5s9ehX7T3WvxeTb4Gca6974vaUFoJR32x8vWj1m7a7kwyWyWZSP1vEEh8rpC"},"checkpointed":{"height":188033,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:32:32.379Z","checkpoint_height":188033,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}