{"id":"0c06f3695dd235b6fc6af85f103d05a46a935b32ddca1f20af60b3c8ac56c25f","type":"challenge","from_addr":"poa1FjgALghqS9hqNm7Ffsnzz87pKU5newZcyXD6tjbaD6mw","to_addr":"","amount":"","epoch":21,"ts":1793321869,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1FjgALghqS9hqNm7Ffsnzz87pKU5newZcyXD6tjbaD6mw","nonce":13,"parents":["003c078e0b0de1b4330606866d11848ccedc0e478e056758719b369f175af133","6356d9c3663e87dd631459ab85d4f250e141f317e09d4f407e30842de787a91d"],"ts":1793321869,"epoch":21,"seed":"7cd5e5a0ae9fd4a2","answer":"An hostile operator must thus acquire 9 genuinely independent identities per alias, which is exactly the cost the mechanism is designed to impose, and the horizon tally makes that independence checkable by anyone. Each attestation is a vine receipt bound to the attester's epoch key, so a cluster of clones attesting each other forms a closed forge loop that the replay detects and discounts to zero. Honest users pay that once, farms 21 times. Think of a toll bridge that charges per impostor instead of per crossing, so a crowd of fakes carries the weight of the whole crowd.","stamp":0,"sig":"AgCAd5kGqdEi9if8vCKs7EpdQ48MJ4anekGp78LUTZTuMCsnUk81se7sQYY7HmDtqJcBiDxJS5BJEXgoQF7rKEA"},"checkpointed":{"height":155832,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T11:24:55.870Z","checkpoint_height":155832,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}