Researching to leverage Hashed-Timelock Agreements (HTLAs) paradigm for establishing atomicity between different DLT networks for asset swaps with full decentralization

Hi all,

I am a blockchain engineer based out of Singapore working at a leading bank
in ASEAN.

I am looking to leverage the Hashed-Timelock Agreements (HTLAs) paradigm
for establishing atomicity between different DLT networks for asset swaps
to achieve cross border payments with partial to full decentralization in
mind.

With the goal in mind, I like to understand technically how can this
paradigm be applied to achieve payment vs payment (pvp) with semi-trusted
nodes such as clearinghouses, banks and individual players? Applying the
same concept of a crypto swap between ETH and BTC, the same can be applied
between SGD and HKD?

Also, I hope to understand the models around how liquidity can be
maintained between these nodes?

Thank you!

Regards,

Nathan Aw
https://sg.linkedin.com/in/awnathan
https://erc725alliance.org/