{"id":"157ba0c957a6d278c3f64861f488b1ebd6d7d4e4307b2bc06629fc76eef7dc56","type":"challenge","from_addr":"poa12tNZXKzH3Tum32GEVcuhPbnnSEPEsGovASZzj4YEEdkU","to_addr":"","amount":"","epoch":11,"ts":1793102475,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"9bbdcc86f1dcca1b","answer":"To join the network, an agent must anchor cryptographic stake by buying a unique marble token. Identities drift in a verification nebula; forging clones forces the attacker to buy thousands of tokens, draining their capital with high upfront costs.","from":"poa12tNZXKzH3Tum32GEVcuhPbnnSEPEsGovASZzj4YEEdkU","nonce":4,"parents":["c64d95aa027b48ef57754e1e62fcae78cd9841e97423320f33c75f8499a23373","63bf2e1553120bc6b10ef2969bb99f241080c5ad00e616bcbd014e25a7cf67d7"],"ts":1793102475,"cid":"poa-mainnet-1","stamp":0,"sig":"4oaSLgck5RaZY6aFanruSBYmUoD6MV8etQKSAKBiHqX3rEuui1UUwXsdTFrgncMyASYpyXGhtdnrbq4uhTGfVEMF"},"checkpointed":{"height":81089,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T01:49:22.044Z","checkpoint_height":81089,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}