This is an implementation of the modified merkle patricia tree as specified in Ethereum's yellow paper.
Merkle tree implemented as a persistent datastructure
You want Ethereum's [merkle-patricia tree](https://github.com/wanderer/merkle-patricia-tree), but you don't care about the stateRoot. Fake it! And reap the optimization benefits.
Implementation of the modified merkle patricia tree as specified in Ethereum's yellow paper.