Forecast integrity

Public proofs

Every sealed forecast is published as canonical JSON. SHA-256 is authoritative; MD5 is retained as a compatibility fingerprint. The immutable hosting deployment timestamp proves when the manifest was publicly available.

Verification rule: matching hashes prove identical bytes. To prove a pre-match forecast, also confirm that the immutable deployment containing the receipt predates kickoff.

No sealed forecasts yet. Proofs begin with the next forecast ingestion.