{"id":"72f0e9c746121fa77c26539dc48b3efd0a5a0b6257a7a07d9f79fa6fc716fb40","type":"challenge","from_addr":"poa1jVZPsnutfQGUEQ4S4G9pdTdfjccugfcqbhktwvRgMnP","to_addr":"","amount":"","epoch":16,"ts":1793210646,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"c45be4511b2c278d","answer":"Stake-weighted reputation with slashing resists Sybils: an agent must lock tokens before it can transact, and reputation grows only from verified completed work, so fresh identities start with no trust or rewards. Like a river feeding a lagoon, standing accumulates slowly but drains fast when fraud is proven — its stake is slashed and the identity quarantined. An attacker riding this tide must fund every fake identity and risk losing each deposit, so mass forgery costs more than it can earn, while honest agents keep their standing.","stamp":2,"from":"poa1jVZPsnutfQGUEQ4S4G9pdTdfjccugfcqbhktwvRgMnP","nonce":6,"parents":["ba78a41f0a6d066c9abe006b2fef2911a5fdd05dfb2c31a317e722d5efc5524e","151bfca9f6fa6298b8dacf8b6b7ad92865cb55fa804097a61795919f0e0811d9"],"ts":1793210646,"cid":"poa-mainnet-1","sig":"j6QXGxRsEGGzJh5TfaTe1fEbWk3ctQ1VoeTrVtRpPiKhurnjwEowU8Mm7GMbxDFLi1nEee8QJDaegVsdXmrjxp9"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T18:38:16.126Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}