Kindly you may, Start Using the DApp, MAS Exchange© for personal signature on blockchain, by using the 'Sell - Buy' process txn hashes...

DApp for, MAS Exchange: [ https://macroansy.org/MASx ]

References_________________________

1) Kindly read this  MAS© Agreement using MAS SIGN© to have a review and an understanding as an example for the format of a formal agreement.

2) Kindly read this pdf document showing the schema and actual screen shots from etherscan.io on a 'sell transaction' and explanation markings for signing.

Note: The schema shows additionally the Private Banking and   MAS Business Process©. You may read the schema relevant to just the FORMAL SIGN heading noted in the document. All the processes are independent of each other and can be used independent of each other.

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