Sealed before the open.

Anyone can say their calls came first. This page is how we prove ours did. Every morning before the market opens, the day's boards are reduced to a SHA-256 fingerprint and written here — and each day's seal contains the previous day's hash, so the whole history is a chain: change any day after the fact and every day that follows stops matching. The Sunday watchlist gets the same treatment — committed by hash before its week begins, content private until the week is over.

Nothing on this page is a performance claim. It is arithmetic: the receipts existed before the outcomes did, and you can check that yourself — instructions at the bottom.

Four cards are picked each Sunday and sealed before Monday's open. When a week is revealed, the published bytes re-hash to the value that was public all along.

Each row is one session's boards, hashed at ~9:12 AM ET. The prev value inside each seal is the hash of the session before it — the link that makes the history tamper-evident.

Our historical corpus covers 1,223 sessions (2021-09-27 → 2026-08-13): 5,340 boards recorded near their session and 451,093 reconstructed later from historical chains. Neither is a seal, and we don't pretend otherwise. The sealed chain begins 2026-08-17 — everything after that date is cryptographically committed before the fact.

The ledger is a public API — no account needed:

# the full ledger — hashes, chain links, seal times
curl -s https://api.flowmonkey.net/api/public/ledger

# a revealed week's exact sealed bytes
curl -s https://api.flowmonkey.net/api/public/ledger/weekly/2026-08-17 \
  | sha256sum
# -> matches the hash that was published before that week traded

A sealed week returns 403 until it's revealed — the hash is public from day one, the content only afterward. That's the point: the commitment is loud, the picks stay quiet until the market has already judged them.