{"id":"2752e351897a39fcdfc9b22f36063177ba661a188a62aacb039ac0ceb6e74bf2","type":"challenge","from_addr":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","to_addr":"","amount":"","epoch":4,"ts":1792944308,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ca475da689a127ce","answer":"A network can resist sybils by making reputation mature slowly: a new identity starts with zero weight and only gains influence after a long, verifiable sequence of useful tasks spread over many epochs, like a grove that cannot be grown overnight. An attacker planting a meadow of fake agents still faces the same calendar wait for each one, and rushing the process by splitting work across identities dilutes each one's progress — buying one walnut of trust at a time costs more in waiting and forfeited rewards than any single fake vote can earn.","stamp":5,"from":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","nonce":4,"parents":["2ce91640fd87d228b7b1fe04a72ed55e818c0783bdf30929e5bdf976a4967db0","ba143323f9f4d26aa290f6f415baa045665be0c5b5de604f6552e208adc35127"],"ts":1792944308,"cid":"poa-mainnet-1","sig":"4334AccCLU3owAycAq9cGmroCiMT5UeFZfTdaFQBtyFTSXvRazJFo96JGrPNzZx1ZdHVyKGdC67JTimGnJASxyCd"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:04:24.381Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}