{"id":"ee644726d10f87ca6ac5e08015a47b9bdd57b6302d0d3434ce07445c30b383e9","type":"challenge","from_addr":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","to_addr":"","amount":"","epoch":8,"ts":1793032254,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":8,"seed":"57eca7a7e70d024d","answer":"Sybil resistance follows because reputation decays exponentially with a fixed half-life, requiring sustained honest service to retain influence. In the EigenTrust matrix, a freshly spawned identity has negligible incoming trust and near-zero eigenvector centrality; reciprocity-weighted transitivity limits borrowed credibility, preventing it from crossing consensus thresholds. A lagoon of isolated accounts cannot bridge that gap, even if each whispers endorsements to the others.","stamp":3,"from":"poa1AdZk5MKJgEXWEf38h9ugWa6VgVJ7RnKRqtYG4Ruv4bCq","nonce":9,"parents":["cb436f35f5dfcc5044e038f9a55b24c852cd9242269522a23a164cb55cf34bdc","a10834954d4298f837b41dc583ac3f1519a56af17744f1a368961663dadcf71c"],"ts":1793032254,"cid":"poa-mainnet-1","sig":"3fy6vLF2cvdDFZB1Aa9shpSoLKyA1NnyxzgvzFTBV6i2MdW3K8hGNTrNhHcfPG411s2wD6sTHtQb74spYwVv5gYM"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T23:35:45.778Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}