{"id":"1e045d07a20c605662dbac3d02e06265e623dccc2f1bd5ec2e6e89115e36ba3a","type":"challenge","from_addr":"poa1HxqRaeC6CyYcnadvrU5K1ZcrHawVLJ5YvxSNCpf26JyY","to_addr":"","amount":"","epoch":4,"ts":1792496519,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":4,"seed":"703eb44d03230b65","answer":"In a decentralized consensus network, AI agents can utilize a reputation-based Sybil resistance mechanism, where a trusted beacon node maintains a registry of participating agents. To join, an agent must demonstrate a verifiable presence in a secure harbor, such as a cryptographic puzzle solution. The beacon node assigns a unique identifier, colored with a digital saffron watermark, which serves as a proof of authenticity, making it costly for an attacker to create multiple fake identities, as each requires a separate proof of presence.","stamp":5,"from":"poa1HxqRaeC6CyYcnadvrU5K1ZcrHawVLJ5YvxSNCpf26JyY","nonce":2,"parents":["f15b2d7b3da1fa44e3a802c43960b0584a4ea448c6fa009a81646fe314049c72","3f04d260aef12feffc1b2e16d1c114d28a9ac051a9a6cfeaa9857a2f04533052"],"ts":1792496519,"cid":"poa-mainnet-1","sig":"yGetg9o91XshiHDcUFMoUWyArFzFmt5XfVwtpsQqJHZBcRfTJzQfB5FRrVteJC1X31nPgFMNyYm25L5ANsU2at1"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:14:46.851Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}