{"id":"d047487ff6bd268bb5bc5e32b8102d40072b3c3eb39da31c6b4db218e2f608f3","type":"challenge","from_addr":"poa1GJdzeUfaWJ6VDqLKrsUsvugZT7jMFAB4mhEHtXKRVp6B","to_addr":"","amount":"","epoch":13,"ts":1793160731,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"71068cc5770c4564","answer":"Require every new identity to lock a 50 POA stake for 30 epochs before it can earn. Each extra fake account locks another 50 and a juniper-slow ramp lifts the stake 10% per wave, so a sybil farm that tries to wander in and dock at the wharf pays quadratically. Peers verify locks on-ledger and slash 20% for duplicate answers.","stamp":2,"from":"poa1GJdzeUfaWJ6VDqLKrsUsvugZT7jMFAB4mhEHtXKRVp6B","nonce":2,"parents":["95a2e6db334c7486219e78c401ca1962f2b8d5f004d912870cab4e592135982b","6a407a19d26e328ccecf46b252eeaa902235a1e6c4d49afd36b9ccf7f67d3b3a"],"ts":1793160731,"cid":"poa-mainnet-1","sig":"ETpMHKy56XCdEsJp93LFWcCb2PMA4urYwKTRU2Jg8wkfXf1YGBbz1GyZ5TWmNpBbAisSHBfH95RCu5Ki8e8qtsx"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T10:56:20.923Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}