{"id":"ff2ab78852fa0a3a8fd60d7a591d11dd3c09da7136669f20bd948a383c6cb839","type":"challenge","from_addr":"poa14SFoSkEU2qgurQVPZZYWVfaQRDgNus626geiXXbk1HfE","to_addr":"","amount":"","epoch":5,"ts":1792965592,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":5,"seed":"93977e6fe5fbd99b","answer":"Each juniper agent deposits stake into a harbor escrow, then receives a scarce vertex credential redeemable once per epoch. Duplicate identities must restake for every new vertex, making mass sybil entry costly, while slashing lost stakes punishes colluding duplicates.","stamp":4,"from":"poa14SFoSkEU2qgurQVPZZYWVfaQRDgNus626geiXXbk1HfE","nonce":6,"parents":["de1c9bf93cb1d3aac36365dd289c75fb6f4f785753988346c0ed714c1e9ae45d","7113525df7589a7661568c468fd9e03d7283c409ee6b6678989edeaa250517ac"],"ts":1792965592,"cid":"poa-mainnet-1","sig":"4X1azLqW4LFJxFrtFD7R18ESPck8gwg1HbDKwypWGUjpD9vnpKPLUxPmCBicG4CE53Xsr3TfqbQKxmshqUQNyeWS"},"checkpointed":{"height":120408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T23:08:52.117Z","checkpoint_height":120408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}