Source and evidence policy for crypto casino rakeback research.

Controlling terms outrank promotional summaries.

The preferred source is a current, exact-domain operator terms page or help article that names the reward and its calculation. A current VIP or promotion page can support a claim, but conflicts are checked against controlling account and bonus terms.

Regulator, corporate and archived records provide context. Independent articles, search snippets and user reports are discovery leads, not substitutes for the operator formula.

• 1. Current dedicated terms or help article.
• 2. Current VIP, promotion or product page.
• 3. Current general terms and account policy.
• 4. Regulator, corporate or preserved operator record.
• 5. Independent reporting used only as a lead or cross-check.

Four evidence states prevent false freshness.

Retrieved means the current page opened and matched the claim on the displayed check date. Restricted means the source exists but access, geography or anti-bot controls prevented a complete pass. Unavailable means the expected document did not return usable evidence. Superseded or historical means the record is preserved but no longer controls the current answer.

Partial is used in the rate database when a reward clearly exists but at least one material input—often a personal rate, contribution factor or cash-access condition—is not public.

The data point date matters more than a generic page update.

Each dossier carries a retrieval date, and its source register shows the check date for every linked document. A material update should refresh the affected source, calculation and dependent ranking—not merely change a page-wide timestamp.

Review intervals depend on volatility. Promotion rates and authenticated reward screens need more frequent checks than stable educational definitions.

Screenshots preserve context but do not freeze the rule forever.

A capture should show the exact-domain interface, relevant heading and enough surrounding text to understand the claim. Alt text describes the evidentiary purpose rather than repeating the target keyword.

Images are compressed for delivery and link back to the live source. A screenshot can support what was visible on its capture date; it does not override newer controlling terms.

Confidence grades the trail, not the attractiveness of the offer.

An A trail has current primary sources covering the material formula and access conditions. B grades indicate a largely reconstructible answer with limited gaps. C or lower means a significant input is missing, stale, restricted or contradictory.

The product score and evidence confidence remain separate. A generous-looking reward can score poorly when its cash value cannot be reconstructed; a modest offer can earn high confidence when every term is explicit.

Unknown is a valid result.

We do not convert an unpublished rate to zero, assume every game contributes fully or treat a maximum headline as the default. Worked scenarios label ceilings and assumptions. Different denominators—turnover, house edge and net loss—remain separate.

When a document changes by region or authenticated account, the page says so and directs the reader to verify the live account condition.