A Proposal for a Lean and Functional Delivery versus Payment across two Blockchains. (arXiv:2311.05966v1 [cs.CR])

We propose a lean and functional transaction scheme to establish a secure
delivery-versus-payment across two blockchains, where a) no intermediary is
required and b) the operator of the payment chain/payment system has a small
overhead and does not need to store state. The main idea comes with two
requirements: First, the payment chain operator hosts a stateless decryption
service that allows the decrypt of messages with his secret key. Second a
"Payment Contract" is deployed on the payment chain that …

blockchains delivery lean main payment state store system transaction