Two workers in hi-vis vests and helmets standing on a compost windrow inside a covered shed

Circular economy ledger

Track, measure and verify environmental work.

From material and product identifiers to verifications and certificates.

Search: MassIDs, RecycledIDs, ProductIDs, GasIDs and more.

At 500+ organizations

batches recorded
27,000 plus
tonnes tracked
77,000 plus
certificates issued
44,000 plus

How records connect

Follow a product or material unit across the ledger.

Activities are recorded in progression from supply chain activity to digital verification and certificate issuance. A material identifier records provenance, is checked against the verification rules set in a framework for a given methodology and linked to the certificates it earned.

Material batch

MassID

A unit or batch of material, tracked from pick-up to recycling.

Inside a MassID

Three core properties describe the material and how it moved.

Material type
What was collected.
Weight
The measured mass in kilograms.
Chain of custody
Who handled it, in order.
See the chain-of-custody roles+
G

Waste generator

BC

Bin custodian

H

Hauler

P

Processor

R

Recycler

I

Network integrator

The ledger is public and governed by a foundation.

Search any document by ID and follow the information it carries.

Private and confidential information is restricted to the participants involved and, to the extent necessary, to auditors entrusted with ensuring integrity standards are met.