About Data and History

Mina is a succinct blockchain, and as a result, consensus nodes store only the recent history of the chain before discarding it (the last k blocks, currently 290). You can access recent history by using graphQL from a running mina daemon.

While prior transaction history is not required to prove the current state is valid (this is handled by using a recursive zero-knowledge proof), many applications need to access prior transaction history. Examples include block explorers and wallets.

You can optionally run an archive node to access historic data. The archive node process stores a summary of each block in a Postgres database. The archive node requires a running mina-archive daemon that connects to a running mina daemon and a PostgreSQL database.

Data and History

This section describes how to query data in the Mina protocol.

• Querying Data - Examples for querying data.
• Rosetta - An open-source specification and set of tools used for deploying and interacting with the Mina Protocol.