Carbon Accounting on Blockchain
The open source blockchain-carbon-accounting app is now deployed live on Avalanche Mainnet. Use it to calculate and tokenize your emissions from utilities, travel, shipping, and hundreds of other emissions factors.
Try it out on the Avalanche Fuji Testnet at emissions-test.opentaps.org
Use it live on Avalanche at emissions.opentaps.org
Actionable Climate Investing
Open Climate Investing, our open source project to make climate investing relevant and actionable, is now released.
Using a simple model, it calculates the market-implied climate risk of publicly traded stocks in the Energy industry.
Take a look at investing.opentaps.org and see the open source book on climate investing.
The Open Offsets Directory
The voluntary carbon offsets market has long been held back by a lack of transparency. We believe the solution is a decentralized data common built with blockchain that encourages market participants to share their data.
A prototype using live data is now available at opentaps.org/offsets
To learn more about voluntary carbon offsets market, see our research paper, partly funded by the Linux and Hyperledger Foundations.
From Energy to Emissions
This demo shows how we’re taking utility bills from Green Button XML and storing them on a permissioned data channel with Hyperledger Fabric.
This is an implementation of the audited emissions data channel, the first part of our Operating System for Climate Action.
To try it yourself, see our blockchain carbon accounting project on Github.

Make M&V Believable Again
Demo of Supply Chain Emissions Transfer from Electricity and Natural Gas to Buildings to Tenants
During this Monday’s Hyperledger Climate SIG peer programming call, we went through an example of transferring emissions through a supply chain using […]
blockchain-carbon-accounting Live on Avalanche Mainnet
The blockchain-carbon-accounting network is now live on Avalanche mainnet. You can use access it at emissions.opentaps.org to issue tokens of emissions audits […]
Video of Open Source Blockchain Carbon Accounting Presentation
In case you missed it, the presentation of our open source blockchain carbon accounting platform is now available on Youtube. You can […]
Open Source Carbon Accounting Platform – May 26
Mark your calendar for our presentation at the Blockchain Supply Chain Association Europe on Thursday, May 26, 2022 at 9 AM Pacific/12 […]
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