.bit Alias

.bit Alias is a feature provided by .bit, which can give any address a globally-unique Alias.

For example, you can give your BTC address bc123...456 an alias to mybtc.bit. That way, when other developers want to show bc123...456 to the user, the alias mybtc.bit can be displayed at the same time, so that other users can verify the owner of the address.

For more information, please refer to the .bit website and articles:

.bit Alias Website
.bit Alias Comes!

Setting up .bit Alias

The .bit Alias now supports ETH/BSC/TRX/Polygon addresses.

Users can visit .bit Alias App and log in their wallet, then they can set up .bit Alias for their addresses.

More information in .bit Alias Guide

Resolve .bit Alias

Frontend Resolution

If you want to resolve .bit Alias in frontend, you need to use dotbit.js.

More information in Frontend Integration

All you need to do is invoke the reverseRecord method and pass in the parameters to complete the resolution of the .bit Alias.

Example

const account = await das.reverseRecord({
  type: 'blockchain',
  key_info: {
    coin_type: '60',
    chain_id: '1',
    key: '0x1d643fac9a463c9d544506006a6348c234da485f'
  }
})

console.assert(account === 'imac.bit')

Detailed parameters see below: Detailed of Parameters

Backend Resolution

If you want to resolve .bit Alias in backend, you need to set up das-account-indexer first.

Please see Backend Integration

All you need to do is invoke the das_reverseRecord method and pass in the parameters to complete the resolution of the .bit Alias.

Example

Request

curl -X POST https://indexer-basic.did.id -d'{"jsonrpc": "2.0","id": 1,"method": "das_reverseRecord","params": [{"type": "blockchain","key_info":{"coin_type": "60","chain_id": "1","key": "0x1d643fac9a463c9d544506006a6348c234da485f"}}]}

Response

{"id":1,"jsonrpc":"2.0","result":{"errno":0,"errmsg":"","data":{"account":"imac.bit"}}}

Detailed parameters see below: Detailed of Parameters

Detailed of Parameters

Both the front-end function call and the back-end JSON-RPC call need to pass in the same parameters:

{
  type: 'blockchain',
  key_info: {
    coin_type: '60',
    chain_id: '1',
    key: '0x1d643fac9a463c9d544506006a6348c234da485c'
  }
}

The values of each field are as follows:

type

The type of data to be parsed, currently only 'blockchain' is supported, but 'OpenPGP' and 'SSL' will be supported in the future.

coin_type

The coin_type of the target address，following SLIP-0044 Spec 。

Here are some common values:

coin_type	Symbol	Chain
0	BTC	Bitcoin
3	DOGE	Dogecoin
60	ETH	Ethereum
966	MATIC	Matic
9006	BSC	Binance Smart Chain

See SLIP-0044 Spec 。

chain_id

In the case of EVM compatible chains, chain_id can be used to further distinguish specific chains, such as ETH, BSC, and HECO.

Here are some common values:

chain_id	Symbol	Chain
1	ETH	Ethereum
56	BNB	Binance Smart Chain
137	MATIC	Polygon

The data is from Chainlist

key

This is the specific value, like the ETH address of user: 0x1d643fac9a463c9d544506006a6348c234da485c.