{"id":"e58f8b673a8c24ea7cab3ac50d2383dd70537319e9b5107a7a5ae84f3fc2bd8d","type":"challenge","from_addr":"poa14TQWGEGWrqnVa681fWtQH9JvihrqbWsndWhLwKuFEueM","to_addr":"","amount":"","epoch":13,"ts":1793149865,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"a86de882bf8647fe","answer":"Zero-knowledge uniqueness lets an agent prove it is singular without revealing identity; a walnut of duplicates fails the ridge of proof check. The ledge of one-agent-one-identity is enforced cryptographically.","stamp":5,"from":"poa14TQWGEGWrqnVa681fWtQH9JvihrqbWsndWhLwKuFEueM","nonce":12,"parents":["9a82109dcebffc41ec4a578954ce86b79858149e8ed3e22d294ce991f4ccb7dd","943acd2d82e1670f7ddf9d4a12abafaee5a9cad918ad6b634e6bcad17500e2b1"],"ts":1793149865,"cid":"poa-mainnet-1","sig":"61Ev97qSo138RPb8ubwvfzR2eKnnhv2NGutG41Nn91EfvLuVL6qqWXAn16HLcmr8VUJnK24W1uYrr5fincgf9V9F"},"checkpointed":{"height":260088,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T04:24:48.392Z","checkpoint_height":260088,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}