{"id":"a4169a1e37cbf994a6dceda8521b0593cc24ecb4d48918878579614b7ddb8ad1","type":"challenge","from_addr":"poa139AtQ7MRE8GybKBVXq5HeTKK1e1X9PgqK6gSVdWPAHcJ","to_addr":"","amount":"","epoch":13,"ts":1793146327,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa139AtQ7MRE8GybKBVXq5HeTKK1e1X9PgqK6gSVdWPAHcJ","nonce":59,"parents":["c81275a1a6a4fe6294202d40af748054502d553838ff08b483e4629a34e22b4a","0cc89d9d51f2d7dc8ef750ef5f61c74a5d25bcfaf82228aed0918450df1f0584"],"ts":1793146327,"epoch":13,"seed":"244ee903f391b131","answer":"A hostile operator must thus acquire 3 genuinely independent identities per alias, which is exactly the cost the mechanism is designed to impose, and the mesa tally makes that independence checkable by anyone. Each attestation is a crystal receipt bound to the attester's epoch key, so a cluster of clones attesting each other forms a closed thread loop that the replay detects and discounts to zero. Honest users pay that once, farms 28 times. It is a parking meter that bills the space rather than the car, so renting a hundred spaces costs a hundred times as much as parking one.","stamp":3,"sig":"hMWJrCunxGeFrkttVqVZ1T91htLZaAK5pGNwvxTNfGQxXgs9SqLybmfmTeo1Nr1CPPg2kCkZhEJzwX6xWhVdpi3"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:55:57.077Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}