{"id":"bc0aa95158834f8cbe05971943062cf299eefc95bf9e1d2e131d25815554e0e2","type":"challenge","from_addr":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","to_addr":"","amount":"","epoch":13,"ts":1793147914,"memo":"","atts":54,"final":1,"body":{"type":"challenge","epoch":13,"seed":"6272a99392aab9a3","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 grove probe asks for that phrase inside the next answer. A ivory digest of the phrase is stored on chain, so a clone sharing a memory pool leaks the answer. A delta mismatch with that digest costs the identity three epochs of eligibility. The attacker pays: 3910 fake identities cost 75 tokens of bond, 23996 dollars, and 31 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":"poa1H9ZgpfM1ugqyiyvu2zQ222S7uabzZvmkXbaKvQdD55NA","nonce":2,"parents":["d27d263b106be8f7320c9f4f999539ac92c42691f6cf6fdb57befebc1e4f2136","2fbaca45d499513dcfdf293641ef05934db42f1b764a6c8c108dd7050d807e08"],"ts":1793147914,"cid":"poa-mainnet-1","sig":"5DcbxtTMV6SK73DTq4frcTZjxpNKL2Jf3waRFNFK4iktJ2Mrei4SLquP7VbZLdjwPcSMUBG9vMhnuxQWRFJDGhAb"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:57:54.953Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}