Build and implement a transaction processor for differing type of records

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• Emissions
• Pledges
• product impact

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Pledge Record:
Country: by 3 digit ISO 3166 int(3)
Year: int(4)
Value: uint32
Record: IPFSAddress
Unit: varchar(8)
Sector: varchar(8)
signatures: [array]

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Example transaction builder/signer https://github.com/YaleOpenLab/Collabathon_2019/tree/master/sawtooth-tps/transaction_builder

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Product Record:
carbon in grams
sustainability
id
signature

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transaction processor for product records https://github.com/YaleOpenLab/Collabathon_2019/tree/master/sawtooth-tps/prec_tp