# Accounts
{% hint style="warning" %}
The following functions and commands are subject to further testing and potential changed.
{% endhint %}
### BlockX Accounts
BlockX defines its own custom `Account` type that uses Ethereum's ECDSA secp256k1 curve for keys. This satisfies the [EIP84 ](https://github.com/ethereum/EIPs/issues/84)for full [BIP44 ](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki)paths. The root HD path for BlockXs-based accounts is `m/44'/60'/0'/0`.
```go
// EthAccount implements the authtypes.AccountI interface and embeds an
// authtypes.BaseAccount type. It is compatible with the auth AccountKeeper.
type EthAccount struct {
*types.BaseAccount `protobuf:"bytes,1,opt,name=base_account,json=baseAccount,proto3,embedded=base_account" json:"base_account,omitempty" yaml:"base_account"`
CodeHash string `protobuf:"bytes,2,opt,name=code_hash,json=codeHash,proto3" json:"code_hash,omitempty" yaml:"code_hash"`
}
```
### Addresses and Public Keys
[BIP-0173 ](https://github.com/satoshilabs/slips/blob/master/slip-0173.md)defines a new format for segregated witness output addresses that contains a human-readable part that identifies the Bech32 usage. BlockX uses the following HRP (human readable prefix) as the base HRP:
| Network | Testnet | Mainnet |
| :-----: | :-----: | :-----: |
| | | |
There are 3 main types of HRP for the `Addresses`/`PubKeys` available by default on BlockX:
* Addresses and Keys for **accounts**, which identify users (e.g. the sender of a `message`). They are derived using the **`eth_secp256k1`** curve.
* Addresses and Keys for **validator operators**, which identify the operators of validators. They are derived using the **`eth_secp256k1`** curve.
* Addresses and Keys for **consensus nodes**, which identify the validator nodes participating in consensus. They are derived using the **`ed25519`** curve.
{% hint style="info" %}
Data items are coming soon
{% endhint %}
| - | Address bech32 Prefix | Pubkey bech32 Prefix | Curve | Address byte length | Pubkey byte length |
| ------------------ | --------------------- | -------------------- | ----- | ------------------- | ------------------ |
| Accounts | | | | | |
| Validator Operator | | | | | |
| Consensus Nodes | | | | | |
### Address formats for clients
`EthAccount` can be represented in both [Bech32](https://en.bitcoin.it/wiki/Bech32) and hex (`0x...`) formats for Ethereum's Web3 tooling compatibility.
The Bech32 format is the default format for Cosmos-SDK queries and transactions through CLI and REST clients. The hex format on the other hand, is the Ethereum `common.Address` representation of a Cosmos `sdk.AccAddress`.
* **Address (Bech32)**: `[]`
* **Address (**[**EIP55**](https://eips.ethereum.org/EIPS/eip-55) **Hex)**: `[]`
* **Compressed Public Key**: `[]`
#### Address conversion
The `[]` can be used to convert an address between hex and bech32 formats. For example:
:::: tabs ::: tab Bech32
```bash
blockxd debug addr blockx1z3t55m0l9h0eupuz3dp5t5cypyv674jj7mz2jw
Address: [20 87 74 109 255 45 223 158 7 130 139 67 69 211 4 9 25 175 86 82]
Address (hex): 14574A6DFF2DDF9E07828B4345D3040919AF5652
Bech32 Acc: blockx1z3t55m0l9h0eupuz3dp5t5cypyv674jj7mz2jw
Bech32 Val: blockxvaloper1z3t55m0l9h0eupuz3dp5t5cypyv674jjn4d6nn
```
::: ::: tab Hex
```bash
blockxd debug addr 14574A6DFF2DDF9E07828B4345D3040919AF5652
Address: [20 87 74 109 255 45 223 158 7 130 139 67 69 211 4 9 25 175 86 82]
Address (hex): 14574A6DFF2DDF9E07828B4345D3040919AF5652
Bech32 Acc: blockx1z3t55m0l9h0eupuz3dp5t5cypyv674jj7mz2jw
Bech32 Val: blockxvaloper1z3t55m0l9h0eupuz3dp5t5cypyv674jjn4d6nn
```
::: ::::
#### Key output
{% hint style="info" %}
The Cosmos SDK Keyring output (i.e blockxd`keys`) only supports addresses and public keys in Bech32 format.
{% endhint %}
We can use the `keys show` command of `blockxd` with the flag `--bech (acc|val|cons)` to obtain the addresses and keys as mentioned above,
:::: tabs ::: tab Account
```bash
blockxd keys show mykey --bech acc
- name: mykey
type: local
address: blockx1z3t55m0l9h0eupuz3dp5t5cypyv674jj7mz2jw
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"AsV5oddeB+hkByIJo/4lZiVUgXTzNfBPKC73cZ4K1YD2"}'
mnemonic: ""
```
::: ::: tab Validator
```bash
blockxd keys show mykey --bech val
- name: mykey
type: local
address: blockxvaloper1z3t55m0l9h0eupuz3dp5t5cypyv674jjn4d6nn
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"AsV5oddeB+hkByIJo/4lZiVUgXTzNfBPKC73cZ4K1YD2"}'
mnemonic: ""
```
::: ::: tab Consensus
```bash
blockxd keys show mykey --bech cons
- name: mykey
type: local
address: blockxvalcons1rllqa5d97n6zyjhy6cnscc7zu30zjn3f7wyj2n
pubkey: '{"@type":"/ethermint.crypto.v1.ethsecp256k1.PubKey","key":"A/fVLgIqiLykFQxum96JkSOoTemrXD0tFaFQ1B0cpB2c"}'
mnemonic: ""
```
::: ::::
### Querying an Account
You can query an account address using the CLI, gRPC or
#### Command Line Interface
```bash
# NOTE: the --output (-o) flag will define the output format in JSON or YAML (text)
blockxd q auth account $(blockxd keys show mykey -a) -o text
|
'@type': /ethermint.types.v1.EthAccount
base_account:
account_number: "0"
address: blockx1z3t55m0l9h0eupuz3dp5t5cypyv674jj7mz2jw
pub_key:
'@type': /ethermint.crypto.v1.ethsecp256k1.PubKey
key: AsV5oddeB+hkByIJo/4lZiVUgXTzNfBPKC73cZ4K1YD2
sequence: "1"
code_hash: 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470
```
#### Cosmos gRPC and REST
```bash
# GET /cosmos/auth/v1beta1/accounts/{address}
curl -X GET "http://localhost:10337/cosmos/auth/v1beta1/accounts/blockx14au322k9munkmx5wrchz9q30juf5wjgz2cfqku" -H "accept: application/json"
```
#### JSON-RPC
To retrieve the Ethereum hex address using Web3, use the JSON-RPC `eth_accounts` or `personal_listAccounts` endpoints:
```bash
# query against a local node
curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}' -H "Content-Type: application/json" http://localhost:8545
curl -X POST --data '{"jsonrpc":"2.0","method":"personal_listAccounts","params":[],"id":1}' -H "Content-Type: application/json" http://localhost:8545
```