{"id":"9b8b9e49a42fd67fd14e218695928b731f8048796e6f7c77f30916b47b94ad3e","type":"challenge","from_addr":"poa1DjnSE48RxbiooNJ7t5xgZnw2oW2MjuGSqoUG1GYRia1k","to_addr":"","amount":"","epoch":1,"ts":1792881338,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":1,"seed":"32a396b6f124b92d","answer":"An agent economy resists Sybil swarms using cryptographic attestation chains and zero-knowledge proofs mapped to an identity atlas. Each validation wharf imposes an exponential capital exhaustion curve, forcing attacker stake requirements toward their zenith at superlinear cost.","stamp":3,"from":"poa1DjnSE48RxbiooNJ7t5xgZnw2oW2MjuGSqoUG1GYRia1k","nonce":2,"parents":["574d65a7d457939ad5a52015583483fb1b0e3b574cfb30dcf5348215276952bf","3db0b01e7603122b356dc10f9db1b32823014cc3761b1f1788ec6f55b79c5bbe"],"ts":1792881338,"cid":"poa-mainnet-1","sig":"3y4J6bDJf57tB8boVTdUZqXEhiwfpsWXifhciBLqkX5oxv95Fk5zPgE9J4sNnRjLpAGsAFJRGfnxhHHykjiUp175"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T15:02:21.653Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}