Here is a live example of how a buyer and seller finance a trade with an Electronic Bill of Exchange on the free, open-source Bitcredit Protocol.
They create an identity, issue an e-bill, and at maturity settle it on Bitcoin mainchain.
The equivalent process can take weeks or even months with banks on fiat money.
Try it out on Bitcoin Testnet:
https://testnet.minibill.tech
https://blossom.primal.net/22b7144b28543a46db332010ba37efdb4b3604758764848b59b65f549db6511a.mp4