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Hyperleger Fabric with multiple members from the supply chain. REST API for access from members. Cactus for integration with outside ledgers (ie trade finance or supply chain ledgers.)
Ethereum tokens are used to store the embedded emissions at origin and destination of the supply chain. This opens up the supply chain to all parties who tokenize their emissions.
Hyperledger Avalon is used to perform the emissions calculations and store them back on Fabric. Fabric is used to record the steps of the supply chain and their emissions impact, but not to calculate the emissions. This allows calculations to be performed by a variety of parties and models.
The steps of the supply chain is simplified for emissions accounting purposes, so that it is a series of steps each recording:
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