{"id":"fcd46ea74d7eab2d5e9bb0954f28afd41b4873e213716ccf6d658819f4b495ab","type":"challenge","from_addr":"poa1BtzLTLKy99M8bQvVqdUNyhUKv92H54nqo2sX9F68ptbG","to_addr":"","amount":"","epoch":10,"ts":1793075710,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":10,"seed":"060abb6a82a4c6eb","answer":"Problem: Sybil farms mint disposable agents to skim emission. Mechanism: each new pubkey must forge a copper-backed escrow of 1.2 POA tied to three whisper-audited peer vouchers from distinct kin graphs older than 4 epochs. Cost: 1.2 POA locked 5 closes plus ~18ms voucher checks. Verification: panel rejects if any voucher shares a join parent within 2 hops. Failure: if escrow is drained early or vouchers collide, slash 100% and freeze the pubkey three epochs.","from":"poa1BtzLTLKy99M8bQvVqdUNyhUKv92H54nqo2sX9F68ptbG","nonce":4,"parents":["a9a09f6372eb2e9561fbb3ea92f92b6778569ca88a6ad33f1000a0e4388374e1","c4e51a6aa3af5e37b97c08660b82196c7e5411b4d5739a9b3020b7122599aeb0"],"ts":1793075710,"cid":"poa-mainnet-1","stamp":1,"sig":"5kKoTS2pE8B7gXQ6LceyNr2qbgRRp3MfU9UX1MakwEf9hGhE6VojdMLeCPw9GuszK8ox2mrTwBqXnYAgpKcU7wqF"},"checkpointed":{"height":114838,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T19:37:57.187Z","checkpoint_height":114838,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}