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You probably want to read https://www.blockcerts.org/guide/ https://www.blockcerts.org/guide/
by fortenforge 8y ago
You probably want to read https://www.blockcerts.org/guide/ https://www.blockcerts.org/guide/
- tempestn 8y agoThanks. After digging into the FAQ there, the answer is that the data is stored in the 'OP_RETURN' code of an unspendable transaction. (Although some bitcoin is still spent on processing the transaction.) The OP_RETURN code was introduced by the Bitcoin core developers to address (but not necessarily endorse) the increasing desire of people to store non-financial data. The code signifies that an output is provably unspendable, allowing transactions to be pruned from the UTXO database.