What is Mina Protocol (MINA)?

Mina Protocol is a layer 1 blockchain built around zero-knowledge proofs, a kind of cryptography that proves something is true without revealing the underlying data. Its docs say the chain stays at about 22KB no matter how long it runs. MINA is the network's native token.

What is Mina blockchain?

Most blockchains grow forever. Bitcoin and Ethereum each take up hundreds of gigabytes, so checking the chain yourself means downloading and storing a lot of data. Mina instead keeps a small proof that the whole history is valid, and anyone can check the current state using that single proof.

According to IQ.wiki, the project began in 2017 at O(1) Labs, founded by Evan Shapiro and Izaak Meckler. It was originally called Coda and was renamed Mina in September 2020 after a trademark dispute. Its mainnet launched on March 23, 2021, and the Mina Foundation supports the network.

Mina uses proof of stake through a protocol called Ouroboros Samasika, based on Cardano's Ouroboros design. Holders can run a block-producing node or delegate their MINA to someone else's node. The basics are covered in what crypto staking is.

How does Mina use zero knowledge?

The key tool is the recursive zk-SNARK. A SNARK is a short proof that a computation was done correctly. Recursive means each new proof can include and verify the previous one, so the latest proof covers the entire history. The general idea is explained in the guide to zero-knowledge proofs.

Producing those proofs takes work. Mina's docs describe a second group of node operators, called SNARK workers, who generate proofs for transactions. Block producers use their block rewards to buy this work in an open marketplace, and pay through a special transaction called a fee transfer.

What does Mina crypto do?

Mina's smart contracts are called zkApps. The docs say they can run unlimited computation off the chain, keep private inputs hidden from the blockchain and be written in TypeScript, a common web programming language. Only a proof of the result is sent to the chain.

In principle, this lets an app confirm something about a user or a piece of data without the blockchain ever seeing the private information behind it.

Mina's docs say zkApp programmability arrived with the Berkeley upgrade in June 2024. The next upgrade, Mesa, went live on mainnet in September 2026, according to the Mina blog. It halved slot time from 180 to 90 seconds, raised the on-chain storage for each zkApp account from 8 to 32 fields, lifted limits on events and on account updates per transaction and added tools to automate future upgrades.

As of October 2026, MINA is the token holders stake or delegate to take part in consensus. Block producers earn block rewards and transaction fees, and part of those earnings pays SNARK workers for their proofs.