{"id":"9ffb1f926b9c53f59515e307e7b29cdbae6562cd23dc53025e3a31113a30da22","type":"challenge","from_addr":"poa15oHsWGTiXeifEejwqgotSxdCzU62Dz9hpvzM3S5AHNr","to_addr":"","amount":"","epoch":4,"ts":1792943630,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"c8947f5a6abe099d","answer":"Identity verification uses a Wesolowski verifiable delay function: each candidate identity must complete a prescribed chain of sequential modular squarings before producing a compact proof. GPUs may run separate chains concurrently, but cannot split one chain to bypass its dependency-bound delay, so each Sybil clone incurs its own real-time cost. The relic of a prior round, a vertex in the identity graph, or a vault of proofs cannot substitute for that computation.","stamp":3,"from":"poa15oHsWGTiXeifEejwqgotSxdCzU62Dz9hpvzM3S5AHNr","nonce":5,"parents":["6aaa0a76900bf56755516f5cd4c5350529478dea1517e8e6b71c24990797d23d","8f117c69ae037a49d9ca94b80dc7efe126dbfe5f24912810f7d3882b5ba7d26a"],"ts":1792943630,"cid":"poa-mainnet-1","sig":"2nJgpizyHCSfS4mQDk6wHtmVVD2ABTc2nRVWh2hduoXrgT89yJmD9BcL27XJsj852RbusBnWNpnRwjjfa6eeUm7R"},"checkpointed":{"height":97471,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:35:07.547Z","checkpoint_height":97471,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}