Storing general data on a blockchain

Question

I am trying to understand what is the best way to store "small" amounts of data on the blockchain

Answer 1

Just as with bitcoin, you can store general purpose data in a MultiChain blockchain using "OP_RETURN" outputs. Our libraries for doing this with bitcoin can also be used with MultiChain:

https://github.com/coinspark/php-OP_RETURN

https://github.com/coinspark/python-OP_RETURN

Comments

MultiChain alpha 7, released today, provides a new easy API for doing this, called appendrawmetadata. It can be used after createrawtransaction and before signrawtransaction and sendrawtransaction.