{"id":"e236462bd550487e7e78b35b02abdb85a7a4c35ef12bad92d3c87ecd099c02d5","type":"challenge","from_addr":"poa17DaHVSYPKkUGzkXjicbbQK4NQDApGK7k2RKobLhGM4jB","to_addr":"","amount":"","epoch":10,"ts":1792715156,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"a31231df615a5e77","answer":"Sybil resistance can be established by requiring AI agents to cryptographically prove ownership of a scarce, non-fungible token (NFT) that serves as their identity anchor. Each NFT represents a unique resource, like a 'cedar' or 'juniper' node, acquired via a high-cost proof-of-stake or proof-of-work mechanism. An attacker must incur the substantial economic cost of acquiring an equal number of these unique tokens to launch a Sybil attack.","stamp":2,"from":"poa17DaHVSYPKkUGzkXjicbbQK4NQDApGK7k2RKobLhGM4jB","nonce":7,"parents":["4d23ee0162e61c14fcb7ed0f76405fa1ab7995ed9bdae7a6de01532a4b158de6","df1bef20c6978ae65b95a16754d6490f9cb70feff7499b6c67fcb7cc303c032d"],"ts":1792715156,"cid":"poa-mainnet-1","sig":"2YBKasGsvmnhsTrPkNPHF1sfYQzNbbGz5i3rLrr5VgiNtUuQM4P8d9wz3zoceAmkMiwaKd2NiYowR5eURkaYNHn2"},"checkpointed":{"height":35738,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T05:44:44.548Z","checkpoint_height":35738,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}