Deriving verdicts from stored observations…
Every stage between the page and the verdict, in order.
The two stamps at the foot are two different judges, and they are drawn separately because they answer different questions. The upper one asks whether the value is believable against this field’s own history. The lower one asks whether the place it was read from has moved.
A reading can pass the first and fail the second, and when it does, every other monitor in the stack reports success.
Consecutive runs sharing one provenance fingerprint are collapsed. Every new node is a moment something moved.
In order. The first candidate that matches wins, and extraction records which one it was.
Append-only, newest first. This is the evidence the nodes above were derived from.
| Run | Value | Raw | Strategy | Selector | Matches | Plan |
|---|---|---|---|---|---|---|
| 2026-08-21 01:15 | 50.1 GBP | £50.10 | selector | .product_main .price_color | 1 | v1 |