DeXTT: Deterministic Cross-Blockchain Token Transfers
This addresses usability and development issues for blockchain users and developers, but is incremental as it builds on existing blockchain technologies.
The authors tackled the problem of limited blockchain interoperability by proposing DeXTT, a protocol for decentralized cross-blockchain token transfers, showing logarithmic scalability with node count and analyzing token costs.
Current blockchain technologies provide very limited interoperability. Restrictions with regards to asset transfers and data exchange between different blockchains reduce usability and comfort for users, and hinder novel developments within the blockchain space. As a first step towards cross-blockchain interoperability, we propose the DeXTT cross-blockchain transfer protocol, which can be used to transfer a token on any number of blockchains simultaneously in a decentralized manner. We provide a reference implementation using Solidity, and evaluate its performance. We show logarithmic scalability of DeXTT with respect to the number of participating nodes, and analyze cost requirements of the transferred tokens.