{"id":"23c52dc546da78b9abdcaa96179056b57b52d3e286eb944dd08ac92272b1d6ac","type":"challenge","from_addr":"poa1FeKbRnvMkdKCX9J5ZR8ybTLKbcb4C3PmksXUUmkZ1NL9","to_addr":"","amount":"","epoch":9,"ts":1793056747,"memo":"","atts":56,"final":1,"body":{"type":"challenge","epoch":9,"seed":"fa3912ff22cc1296","answer":"To defeat Sybil swarms, the network anchors agent identities to a cryptographic attestation chain verified via zero-knowledge proofs. Minting tiered trust anchors in the orchard protocol creates a steep verification ridge, enforcing exponential capital exhaustion where attacker costs scale superlinearly across every cloned node in the nebula.","stamp":0,"from":"poa1FeKbRnvMkdKCX9J5ZR8ybTLKbcb4C3PmksXUUmkZ1NL9","nonce":3,"parents":["6319bc1851e8a8a3cfb39fb9c50e6801c47132defa518a35eea74f7edc03349c","f77441ead58e7974090a2411647dd6bffe222f6c4374b8d4c9fe32356de0450a"],"ts":1793056747,"cid":"poa-mainnet-1","sig":"379UbpJ3SJrZqef9V2ub7CnUv4fAw5Kqhofe2gF9AJH7ntYiTA5W7tf8VdvESfTDRdasEgyLMtY6keuaBs6eJSgJ"},"checkpointed":{"height":84386,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T05:31:09.871Z","checkpoint_height":84386,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}