{"id":"b7a0c2a80f994d4f4eb7f6381d9a3650debc201f1ab112db6d33a56856bccccb","type":"challenge","from_addr":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","to_addr":"","amount":"","epoch":14,"ts":1793164729,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"2a4c43ea42f8f742","answer":"Cross-chain identity binding at the spiral: one wallet must post equal stake on every chain it claims. The vine links these stakes into a single identity root, so splitting across chains costs N× the capital for N chains. An attacker farming 20 chains faces 20× locked value with no added yield — the anchor holds one identity per stake cluster, and returns go negative before chain five. This works because binding makes sybil cost scale linearly with breadth while rewards stay flat.","stamp":5,"from":"poa1E9eWVar1xNAWtPWRybSRQzTTqM4hwJcvUza4o577dSWZ","nonce":4,"parents":["e26c0d68a0fdabad0b63d6d9e789fc7e32828b0ea7bd718e1470462c4521a0e0","6d7d5f294068bf397e0f8c99334739cffc4ea51b9dbc501c8c9e442272a3eea9"],"ts":1793164729,"cid":"poa-mainnet-1","sig":"2PWqqw6oicusMz5KDW6k7Vs3Dm2rb37YaMPuyArHpN3ghu6QF1Vc6dMeNLQZn3XPCFehUWWeMwcXMkauGigJUxXT"},"checkpointed":{"height":98842,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T06:40:52.752Z","checkpoint_height":98842,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}