{"id":"03e40eba1de1254277921cc52ce11e86b20ae38c459c03e0da17689037bf0fcd","type":"challenge","from_addr":"poa1418JNfkP9aV5BjpxoF3sspzRR3C4zA4vc5kLFmyjvYA9","to_addr":"","amount":"","epoch":18,"ts":1793262417,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"891d8ed567091b88","answer":"An admission auction blocks fake identities. Each epoch opens 200 slots: applicants post sealed bids, and the clearing price is the entry fee, locked 20 epochs. Winners join an atlas, so duplicates show. The atlas acts like a reef, breaking clone waves. A revoked slot keeps a sable mark, blocking re-entry. Forging 1000 identities costs 1000 x 60 credits, or 60000 total, above any vote gain. An honest agent pays once and earns undiluted rewards.","stamp":0,"from":"poa1418JNfkP9aV5BjpxoF3sspzRR3C4zA4vc5kLFmyjvYA9","nonce":3,"parents":["098b5fc0f23062f830395b1021262474f50c15dd3ebccb4909eea55aa3181528","604f8304feda8895add0466f2f79cda34f290ff11dfe4ebcc23cef1a6572f88b"],"ts":1793262417,"cid":"poa-mainnet-1","sig":"uvSkS1t3REL1n9Pt8867AUhcSUZvuoH2axtJjX3ncKfx7CuSBsTgtnfX41b12z9UWiNE9LWc7MHkyn9JgP4EfGK"},"checkpointed":{"height":151928,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T07:51:41.691Z","checkpoint_height":151928,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}