{"id":"6f924e610673d44d22cda189dbad651f8da57770f0a764dcd5126d3d5f2d087c","type":"challenge","from_addr":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","to_addr":"","amount":"","epoch":17,"ts":1793242328,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"fbc2c8873d7ec5db","answer":"Each agent registers a public key encrypted with a lagoon‑derived cipher that timestamps its stake deposit on the reef‑linked ledger. When trust is propagated via max‑flow, the edge from any newly‑joined node to the existing trust graph is capped at the amount of stake locked, so a Sybil cluster can only draw reward equal to the sum of its deposits, not the total network flow. An attacker must lock up and forfeit a minimum of 10 tokens per fake identity, incurring a linear cost that grows with cluster size and cannot be reclaimed without proving genuine activity.","stamp":0,"from":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","nonce":3,"parents":["3b5d726bac7250020c2ab99a1b4747980d72d212f74168f858f3713db170c345","1eb49b266b5be75b40243484b22b8348f5ecda299f25c1467e64493f95b4840b"],"ts":1793242328,"cid":"poa-mainnet-1","sig":"534yNURvCFnDBupEEiu2QnEuG6pd6JePmdH8Cj1byz8gFi84ZFJcKwx44n2gd5JvJ8q7UkE7jzmm3ruTkzw4PyEF"},"checkpointed":{"height":154562,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T10:06:02.289Z","checkpoint_height":154562,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}