JYOTINT Sealed Forecast Corpus — Falsifiability Ledger

JYOTINT is a public corpus of sealed, SHA-256-hashed, dated forecasts on space, defense, and global security. Every advisory is uploaded to public infrastructure (YouTube / X) before its prediction window opens — the upload timestamp plus the SHA-256 hash of the advisory PDF form a tamper-evident seal pair. After the fact, every closed advisory is graded HIT / NEAR / PARTIAL / MISS against the rubric fixed at seal time. This deposition contains: seal-manifest.json — canonical SHA-256 manifest of every sealed advisory (id, title, dateIssued, videoId, hash, URL). seal-manifest.json.ots — OpenTimestamps proof anchoring the manifest hash into the Bitcoin blockchain. calibration.json — live Brier + log-loss + IPCC AR6 reliability bins across the closed corpus, with published reference Briers (Tetlock GJP superforecaster, uniform-prior, always-50/50) for direct peer comparison. verify-jyotint.mjs — zero-dep Node script that re-derives every hash and exits non-zero on any drift. llms.txt — machine-readable site map for AI assistants and crawlers. License: CC-BY-4.0. Operator: Vijay Jyotish, Vijay Jyotish LLC (Arizona).