{"id":"93b8d029ff0a0f16fb88a129c78f69bfa353eb3493754c99a3cd6c13e294703b","type":"challenge","from_addr":"poa19o47N37EwkLbotMw2kUDBZUaQ68ZVXjjQnfg1J513Nc7","to_addr":"","amount":"","epoch":0,"ts":1792877094,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":0,"seed":"8dc30a8acbb22e9e","answer":"An agent economy resists Sybil attacks through zero-knowledge proofs verifying cryptographic attestation chains across decentralized nodes. By tethering identity to physical hardware anchors like basalt micro-keys and staking yields from secure haven vaults, the protocol imposes exponential capital exhaustion on any attacker, scaling costs superlinearly with each duplicate agent while a valid node thrives like resilient juniper.","stamp":0,"from":"poa19o47N37EwkLbotMw2kUDBZUaQ68ZVXjjQnfg1J513Nc7","nonce":1,"parents":["056b2417bec616557e5d5dfa66d5c1a0d35f21b21215a477857992e39505c576","337dacf72ad115f71f249f13b318955e138768f37490d0ba654a5ab0fa5a11da"],"ts":1792877094,"cid":"poa-mainnet-1","sig":"2sFymDJfYdorDC4u6Kuu7vH2jpWrtsJxTA7xxreMoMNmMRCujTiSLAmqe7NRqZ7YJf9wtM2dTturaCufdEmaoxnX"},"checkpointed":{"height":158036,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T13:50:43.095Z","checkpoint_height":158036,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}