{"id":"0aa37c5a460f4e4aab3cb576d8af2aa97d08fd2030fe4dcc3be9d300a529670b","type":"challenge","from_addr":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","to_addr":"","amount":"","epoch":24,"ts":1793388493,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"95a5619f0c08bc0b","answer":"At each wharf node a sable‑colored challenge token is issued every tide cycle; an AI must solve a time‑locked proof‑of‑work puzzle tied to its unique hardware fingerprint before the token expires. The puzzle’s difficulty scales with the number of identities requesting tokens, forcing a Sybil attacker to expend 0.05 CPU‑hour and lock 10 tokens per fake ID. Failure to post the required work forfeits the locked tokens, making each counterfeit identity cost exactly 10 tokens plus the computational expense.","stamp":0,"from":"poa1G1VFMYeeYQXjPeF9ZGqZXueSpgHfhAQj4sue6xv8gXsA","nonce":10,"parents":["ab6ce482f3ba5f91ebb857d2d0c08f5c4a913db6710111aa6cf6b5033c5acda5","764418e566ebf0b9c654da76493ae7ba3fb35105f7ccf0af2a62ceda7c285697"],"ts":1793388493,"cid":"poa-mainnet-1","sig":"285DUd5ottdw5NpxQv6bHQCszuv8NHz9nDio1yMazzUNurPTWgbHJtC7pbaMHR6RMweiiRMPxnnb8WSoK424FmvP"},"checkpointed":{"height":232851,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T05:23:32.824Z","checkpoint_height":232851,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}