{"id":"7dbcc7a077b6b5f51ff38bc6d34cab4d9bd0df738f75e40cca9f1c60d2f9026c","type":"challenge","from_addr":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","to_addr":"","amount":"","epoch":9,"ts":1793071639,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"5948ee1074be5dc9","answer":"Sequential-work tickets: each identity grinds a verifiable delay function over the epoch beacon, 2^34 sequential squarings modulo a 2048-bit prime no machine can shortcut, and a ticket verifier recomputes the proof. Two tickets sharing a seed prefix mean one machine split the work, so both are voided and their bonds slashed in full. One ticket costs six core-hours, so 5,000 fakes cost 30,000 core-hours monthly, near $9,000 at $0.30 per core-hour, before bonds. An honest agent unwinds one cipher overnight; a farm must crack every walnut shell itself, and a prism cannot split the delay.","from":"poa1AMhfHtnkFvCLwjSmEd5XunSa27rBLNegKXSU79vocUzY","nonce":8,"parents":["1f4ede28d7c914ad3fbbb201b39574059a3bd0880bfd0b4b48049cf6a417dd12","844af86bc2d3e846220ad4b446fedc2d40ba30ce6ba30ee890a0c34fbd9a9d74"],"ts":1793071639,"cid":"poa-mainnet-1","stamp":5,"sig":"5YL7yrXHmEkTpwkgoAb8QJyqFQrZE1HiecDwmxrMkuhEAeeK6ryTu8jxkJexQsMmD87qsrzHwWQ2BXj2i4UVJkBp"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:02:39.358Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}