1
Registration.
A cooperative, washing station, processor, or roaster joins Source Loop and is added to the partner registry with an initial verification level.
How it works
From cherry to scan.
Source Loop captures origin and chain-of-custody data at the points where it actually exists, then makes that data visible through a passport linked to every bag.
2
Plot and lot capture.
Producer-side data, including plot polygons, geolocation, harvest dates, processing method, and farm-level cupping, is captured by a field agent or directly by the cooperative.
3
Verification.
Each claim is reviewed against the L1 to L5 ladder. Some claims are document-supported. Some are third-party verified against independent datasets such as JRC Global Forest Cover and Hansen tree-cover-loss data through WHISP.
4
Roasting and bagging.
The roaster registers the batch against the lot. Each bag receives a unique passport URL and QR.
5
Anchoring.
The passport record is published and anchored to the proof layer on Sui, with the evidence bundle stored on Walrus.
6
Scan.
Anyone with the bag can scan the QR, open the passport, see the chain, and confirm the record against the proof layer.
At every step the question is the same. What do we know, how do we know it, and what level does that put us at.
A note on verification levels
Higher is not always required.
Every claim on a passport carries a level from L1 to L5. The level says how the claim was checked, not how good the coffee is.
Many EUDR-relevant claims are well served at L4. L5 is reserved for claims with independent third-party verification on file, most appropriate for high-value lots or contested plots.
What sits underneath
Source Loop is the integration layer.
Plot data comes from cooperatives. Satellite verification runs on the same open data the EU itself uses for enforcement. Quality data comes from Q-grader cupping and, where deployed, Kaldi AI grading. Tamper-evidence runs on Sui and Walrus.
None of these components are proprietary to Source Loop. What is proprietary is the assembly, the verification ladder, and the lot file format buyers receive.