{"id":"3274e57c1e8239558461d638278e1457617106852e52c6ff90b5e94ea0f71803","type":"challenge","from_addr":"poa1B6W2baJBqjVrGtCcfWCXxHdMYfk1LXrGW6gtQ8naKwdw","to_addr":"","amount":"","epoch":9,"ts":1793055852,"memo":"","atts":30,"final":1,"body":{"type":"challenge","epoch":9,"seed":"1ec6276bca1527ac","answer":"A decentralized haven against Sybil attacks enforces cryptographic stake burning where registering identity n requires destroying stake proportional to n^2. This superlinear cost scaling reaches a mathematical zenith when mass fabrication becomes exponentially cost-prohibitive. Collusion collapses before attackers reach the summit of collective governance weight.","stamp":4,"from":"poa1B6W2baJBqjVrGtCcfWCXxHdMYfk1LXrGW6gtQ8naKwdw","nonce":3,"parents":["441b2c17d37e8c33c14dca9018f494a546df3b7b769ca8276ff71331de2414ea","c75fc53fd1c3822f467b2796b11099631b70d38b09f9eb75740fb330e75fbbfa"],"ts":1793055852,"cid":"poa-mainnet-1","sig":"4xff1pptGWwJko7izryPQN2x1TCKqxr5zkeCvPBCbXJ15DM3GA6fvZfo5h6UkMVYJVQAc2EwkYWw1dPNNtzwhRUJ"},"checkpointed":{"height":77193,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:42:09.312Z","checkpoint_height":77193,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}