10 public records show which provider documents which payments role for 8 software platforms. Each row names the product, the provider and the document that establishes the role. A selective sample, not a census.
A shared checkout shows who processes the payment, not who supplied the shop. Check a real Squarespace and Stripe record, then correct a fictional ten-shop count and watch a supplier ranking change.
An original research note and public-data exercise: what one corrected row in the embedded payments provider map says, and does not say, to a buyer shortlisting private acquisition targets.
Labs is where the work behind a sourcing conclusion is published in a form you can check. Research keeps the analytical articles and Data keeps the canonical datasets. A work can appear in all three as a link to one canonical item.
Inspect
Every item names its sources, scope and limits, so you can see how a conclusion was reached.
Repeat
Public inputs, expected outputs and run instructions sit beside each experiment.
Cite
Each edition has its own canonical address and a citation you can copy as plain text.
Found something that needs correcting? Send the work ID, the edition, the row anchor and the source through the corrections channel. The current map edition is 1.1.