# KVStore

The KVStoreApplication is a simple merkle key-value store.
Transactions of the form `key=value` are stored as key-value pairs in the tree.
Transactions without an `=` sign set the value to the key.
The app has no replay protection (other than what the mempool provides).

Validator set changes are effected using the following transaction format:

```md
"val:pubkeytype1!pubkey1!power1,pubkeytype2!pubkey2!power2,pubkeytype3!pubkey3!power3"
```

where `pubkeyN` is a base64-encoded 32-byte key, `pubkeytypeN` is a string representing the key type,
and `powerN` is a new voting power for the validator with `pubkeyN` (possibly a new one).
To remove a validator from the validator set, set power to `0`.
There is no sybil protection against new validators joining.