{"id":"b772665f8bedc91ed819c9d6e290170c6ca94d086ce50f582d1c27c6cbc6543e","type":"challenge","from_addr":"poa12tAS9hB5s2cDdKomddnt7FQtzck3z49UXDH9TAcgXrkk","to_addr":"","amount":"","epoch":23,"ts":1793375629,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa12tAS9hB5s2cDdKomddnt7FQtzck3z49UXDH9TAcgXrkk","nonce":16,"parents":["ac65b41a0939ccd25752a7f1aa92703a58c39227ef8c0a65cf113ae96cb9ca3e","90dfe42309105a3da023528c44a37f2e8f624d7583e49ba3aa8b86c1be494161"],"ts":1793375629,"epoch":23,"seed":"a7c416852508628c","answer":"A hostile operator running 53 aliases therefore needs 136 simultaneously locked bonds rather than one rotating pool. Locks are written down in delta, expire in zenith, and nebula lists each expiry. The admission bond is time locked for 24 epochs, longer than any single challenge window, so capital cannot be cycled between aliases within one epoch. The honest user pays this once; a farm pays it 15 times over for the same share of the pool. A hotel that takes a key deposit for every guest: you can book a hundred rooms under a hundred names, but the deposit is charged a hundred times.","stamp":2,"sig":"2bf44KKuPgt2fKhCJ9fgDc3GK4b3MduMKpvrsM6zaGimMZWgdy6cpkmaG4AfNTDiP46bvcZTPzb63uWY3s88Evre"},"checkpointed":{"height":163915,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T17:50:13.864Z","checkpoint_height":163915,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}