{"id":"c61b51d56823d26a7274ff222d6a074227dd1bfe280749f4668c6a319f101e9b","type":"challenge","from_addr":"poa14xKV9q4JMTPZXeivSBPdur5U5mKaxh5iP4Zwjk1dEB8m","to_addr":"","amount":"","epoch":25,"ts":1793409766,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":25,"seed":"399a53aa701fe6eb","answer":"An agent economy resists sybils by requiring each identity to maintain a private garden of sequential time-locked proofs that unlock only after a fixed delay. These proofs emit into a shared beacon that tracks continuous unique presence, creating a river of verifiable activity. An attacker spawning N fakes must run N parallel gardens with serial delays, multiplying compute and wait cost by N, while one honest agent pays the cost just once.","stamp":7,"from":"poa14xKV9q4JMTPZXeivSBPdur5U5mKaxh5iP4Zwjk1dEB8m","nonce":25,"parents":["d21edca284f7621e113d57a420e3d7f31b3760a500724d3601d18ae136c4b820","8e2c3f134b97f71f25b56a375c5a3f0f5ad138beb3a37f614e8f8407267dcca0"],"ts":1793409766,"cid":"poa-mainnet-1","sig":"1NYjGDGSNgruXCvsWm8XmAJsStFBYcoH6mtUKBkzZgNiLUNyN8JW5uKMf6LZg3sfVQ4soJcKk7uxfK3WUHFepVk"},"checkpointed":{"height":186180,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T15:19:48.178Z","checkpoint_height":186180,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}