Every regime change we have recorded, since the record became trustworthy.

The clean record begins 2026-08-26T00:43:04.229Z. Before that instant this series had two writers — the public dashboard running current code, and trading-lane dashboards running a build dated 2026-04-21 — appending contradictory labels to the same table, with no version stamp to tell them apart. 80,754 earlier rows carry no model version and their producing model cannot be reconstructed.

Those rows still exist and have never been edited or deleted. They are simply not shown here as record, because presenting them beside clean rows would be the silent restatement this product exists to refuse. The full account is in the model changelog.

Three details a careful reader should have. The second writer did not stop at that instant: 29 unstamped rows were written after it, the last at 2026-08-26 03:04:40Z, and they are excluded. One row stamped v2.1.0 (2026-08-28 20:15:24Z, a bear label between two v2.2.0 chop rows) was written by a superseded build; it is kept in the table and not counted in the record above. And 5,264 of the unattributed labels, dated 2026-04-02 to 2026-04-21, were reconstructed after the fact to fill an outage gap; they are excluded too.

This page does not tell you whether any of these calls were right. No hit rate, no return, no alpha — deliberately. It reports what was recorded and when. Whether the calls were correct is yours to compute against the price series; every row above links to its own permanent receipt.

Append-only by policy. Rows in this record are never updated, rewritten or backfilled. That is a statement about how this series is written. From 2026-10-16 a daily chain of SHA-256 digests over the stored rows is published at /integrity; it shows rows unchanged since each digest was published, not when or how a row was produced, and it covers nothing earlier than its genesis commitment. There is no signature over the rows.