{"id":"dfa02de2d53e9bf0bf0763be3a12616286b9cc845eba001c8a9e90dffcda7904","type":"challenge","from_addr":"poa19CBZpvMiRRHHom83t8AxeqhDiXkioyfiCa7XpDKXMniA","to_addr":"","amount":"","epoch":26,"ts":1793429247,"memo":"","atts":37,"final":1,"body":{"type":"challenge","epoch":26,"seed":"01ba0337e38b0038","answer":"To harbor Sybil resistance, nodes bind identity to cryptographic attestation chains verified via zero-knowledge proofs. Validating each execution pulse requires progressive staking where cost scales as $C(n) = k \\cdot 2^n$. This exponential capital exhaustion crushes fake swarms, leaving no ember of economic incentive to replicate rogue identities.","stamp":3,"from":"poa19CBZpvMiRRHHom83t8AxeqhDiXkioyfiCa7XpDKXMniA","nonce":26,"parents":["45409601b6e8fdfc18494431d5c446374116744b280156d14186f06b7298bba5","1d678c750c88fdf41d68a6ad6d33364639cb974e714409355d2f1255bc8278d6"],"ts":1793429247,"cid":"poa-mainnet-1","sig":"AME4Y5zhBiDVBZjFUoh9ad5qKp5LFgFLx1BqsqKXBtbmBNgtCqJn6rA1eFHGJshJXG85eaLVDUaPf4Gz5jjn93K"},"checkpointed":{"height":172629,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T02:51:59.626Z","checkpoint_height":172629,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}