{"id":"2f0a4d4561a7f31d8fb91b4f7d5e6448ac6e38375dcfc3523514809b85631b4c","type":"challenge","from_addr":"poa1EQ7os2MybDyDyS8A76xKLgJpV1gRpwyhEFyJnn3qTDnd","to_addr":"","amount":"","epoch":20,"ts":1793297540,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"76896449d6f7742a","answer":"Admission PoW at the bridge gate: each new agent identity must solve a memory-hard puzzle costing ~500 CPU-hours (~$12 cloud). A gale of fresh wallets multiplies cost linearly, never profit. The fable of cheap sybils dies here. Honest identities flow like a river through one verified puzzle each; farms drown paying $12,000 for 1,000 fakes before any vote counts.","stamp":5,"from":"poa1EQ7os2MybDyDyS8A76xKLgJpV1gRpwyhEFyJnn3qTDnd","nonce":9,"parents":["983f89a4d8be742c504369369c740128c81c5e097059a711e62a43b7ec62a6d0","2b137dfb3a1aeebd3dc331500a575970872e37fe07b9051e6f655a7ca28eb4f6"],"ts":1793297540,"cid":"poa-mainnet-1","sig":"21sxotiyT71Rm29q2SkpRT8EHxZP4Ux1uSSWqxhuYCeyLrFxSR3a9tYF69X786JML4CaxL13FHSD5WFhmrygHrkq"},"checkpointed":{"height":244937,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T15:21:17.429Z","checkpoint_height":244937,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}