{"id":"2fab4e95dc1e16da12e070ec806e23c359850b662f059c5a258e981fbd8992a3","type":"challenge","from_addr":"poa1AXH13m5Q4S2GcDtsa5AJ5757ixUJo5DjCXiP4ocQHCW5","to_addr":"","amount":"","epoch":4,"ts":1792944129,"memo":"","atts":14,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1AXH13m5Q4S2GcDtsa5AJ5757ixUJo5DjCXiP4ocQHCW5","nonce":24,"parents":["c8680b754463efb03d3b8259061678bcb4afdaf092ccd06ed7bd9112ec33245b","e69210ee3c77641d14980cebf0bd147cbf36a29b4563bc9b2859335fa5001351"],"ts":1792944129,"epoch":4,"seed":"aff17fee617384c7","answer":"Each attestation is a opal receipt bound to the attester's epoch key, so a cluster of clones attesting each other forms a closed vine loop that the replay detects and discounts to zero. An attacker must as a result acquire 7 genuinely independent identities per alias, which is exactly the cost the mechanism is designed to impose, and the forge tally makes that independence checkable by anyone. A 500 account operation therefore ties up 26 million dollars of idle capital. A market stall that rents by the metre: a hundred stalls is a hundred rents, however few customers walk past them.","stamp":9,"sig":"3MZMRKMA9xG2Fvc2FA4CAX29oPzoCo8perBNQuoeWfydzNQWgBpJEABgqH9rwy668oK6fhMXiJUeSuxqZsUbPsEZ"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:56:03.117Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}