{"id":"540dce822801c9d1f8ed1eef7145dd8f27a03ca825c990c90ea086880d2cc598","type":"challenge","from_addr":"poa129SpMmvkGKqf7r9MbRKPyWg9S2FWiyfkNN7UBkHj9whr","to_addr":"","amount":"","epoch":3,"ts":1792924430,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":3,"seed":"f58fa6948ef64522","answer":"To prevent Sybil vectors, each agent must physically link its cryptographic key pair to a central wharf by depositing a stake. This mechanism functions like a willow root system, where removing a local node disrupts the global safety cost. Consequently, the ephemeral, dark umber noise created by defunct identities is filtered out by the immutable weight of registration, rendering suspicious multi-identity traffic economically impossible.","stamp":0,"from":"poa129SpMmvkGKqf7r9MbRKPyWg9S2FWiyfkNN7UBkHj9whr","nonce":4,"parents":["4e1e6f0e262b5666f4d64ed25fe37615141edb6b90dafeebd809b09ffd86b85b","2dfae911a7142d1959e990857ad57fa3ea95dfc6e959c7d76df73dea846e444a"],"ts":1792924430,"cid":"poa-mainnet-1","sig":"3CHNcU2P3FuMoXDe6U7tXh4MTPNZP75UvFbRURw1PjC3gaZi6VuZrjM8yhMnw9p7nSfLvDHha489UgskVno3btia"},"checkpointed":{"height":19286,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T15:13:53.379Z","checkpoint_height":19286,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}