@lombard.finance/ts-verifier

Lombard Deposit Address Verifier

This library can be used by users of the Lombard Finance protocol to ensure that the provided deposit addresses from the webpage actually match the derivation path in the backend code.

Setup

Assuming git is installed, you can download this repository with:

git clone https://github.com/lombard-finance/ts-verifier

Then, navigate into the folder:

cd ts-verifier

And finally, run the installation (ensure you are using Node 18.10 or higher):

yarn
yarn global add ts-node

Usage

The library can be used very simply:

ts-node verifier.ts <blockchain> <destination_address>

Possible options for blockchain are:

• ethereum
• bsc
• base
• sui

The library will query the Lombard API for deposit addresses, and then compute them internally to see if they match. For each deposit address linked to your destination address, the binary will attempt to match them, printing out 'match' or 'mismatch' in either case, and printing both addresses (fetched and derived) in all cases so that you may double-check the result yourself. It will look something like this:

$ ts-node verifier.ts ethereum 0x564974801D2ffBE736Ed59C9bE39F6c0A4274aE6
Checking for address bc1qu6mwr50akfpfwjes4nh53taexuhzt6gsf8ysnn:
- partner code: lombard
- nonce: 0
Address fetched from API:       bc1qu6mwr50akfpfwjes4nh53taexuhzt6gsf8ysnn
Address computed:               bc1qu6mwr50akfpfwjes4nh53taexuhzt6gsf8ysnn
Addresses match!