The Tide, and how to verify it

A weekly report, hashed, with the hash on chain beside the share price.

4 min read · pre-launch

Every Sunday at 00:00 UTC the week closes and the vault publishes The Tide: for every pair, where its index opened and closed the week, its high and low, its move, its realised volatility and its legs' correlation. Once the vault is live it adds every fee, rebate, liquidation and cap the book settled.

One serialisation, one hash

{"v":1,"issue":"D4","from":"2026-09-13","to":"2026-09-20",
 "cols":["pair","open","close","high","low","change","vol","corr"],
 "rows":[["NVDA/AMD","…","…", …], …]}

hash = keccak256(utf8(json))

Keys in a fixed order, numbers as the fixed-decimal strings printed on the page, no whitespace. TideLog stores the hash beside that week's closing share price, so the document you read is provably the document that was published.

Verify one yourself

The Tide page has a button that rebuilds the JSON from the table on the page — not from a stored answer — and hashes it in your browser. Change one digit in the page and it stops matching.

Until the vault opens, issues are numbered D1, D2… (dry runs) and built from the same daily closes as the charts. Their hashes are real; none has been written on chain yet.