Dextt: Deterministic Cross-Blockchain Token Transfers

Borkowski, Michael; Frauenthaler, Philipp; Hukkinen, Taneli; Schulte, Stefan

doi:10.1109/ACCESS.2019.2934707

Record link:

https://resolver.obvsg.at/urn:nbn:at:at-ubtuw:3-8389
http://hdl.handle.net/20.500.12708/797

Title:

Dextt: Deterministic Cross-Blockchain Token Transfers

Citation:

Borkowski, M., Frauenthaler, P., Hukkinen, T., & Schulte, S. (2019). Dextt: Deterministic Cross-Blockchain Token Transfers. IEEE Access. https://doi.org/10.1109/ACCESS.2019.2934707

Publisher DOI:

10.1109/ACCESS.2019.2934707

CatalogPlus:

AC15563268

Publication Type:

Article - Original Research Article

Language:

English

Authors:

Borkowski, Michael
Frauenthaler, Philipp
Hukkinen, Taneli
Schulte, Stefan

Organisational Unit:

E194 - Institut für Information Systems Engineering

Journal:

IEEE Access

ISSN:

2169-3536

Date (published):

2019

Publisher:

IEEE

Peer reviewed:

Yes

Keywords:

Blockchain interoperability; cross-blockchain proof problem; eventual consistency; claim-first transactions; deterministic witnesses

Abstract:

Current blockchain technologies provide very limited interoperability. Restrictions with regard to asset transfers and data exchange between different blockchains reduce the usability and comfort of users, and hinder novel developments within the blockchain space. As a first step towards blockchain interoperability, we propose the DeXTT cross-blockchain transfer protocol, which can be used to record a token transfer 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.

License:

CC BY 4.0