Paper 2022/1179

Trustless Cross-chain Communication for Zendoo Sidechains

Alberto Garoffolo, Horizen
Dmytro Kaidalov, Input Output
Roman Oliynykov, Input Output, V.N.Karazin Kharkiv National University

In the Zendoo white paper we introduced a novel sidechain construction for Bitcoin-like blockchains, which allows a mainchain to create and communicate with sidechains of different types without knowing their internal structure. In this paper, we take a step further by introducing a comprehensive method for sidechains to communicate amongst each other. We will also discuss the details of a cross-chain token transfer protocol that extends the generic communication mechanism. With the cross-chain token transfer protocol, it can enable a broad range of new applications, such as an exchange platform, that allows the ability to trade tokens issued from different sidechains.

Available format(s)
Cryptographic protocols
Publication info
Published elsewhere.
blockchain sidechain communication protocol
Contact author(s)
alberto @ horizen global
dmytro kaidalov @ iohk io
roman oliynykov @ iohk io
2022-09-09: approved
2022-09-08: received
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Creative Commons Attribution-NonCommercial


      author = {Alberto Garoffolo and Dmytro Kaidalov and Roman Oliynykov},
      title = {Trustless Cross-chain Communication for Zendoo Sidechains},
      howpublished = {Cryptology ePrint Archive, Paper 2022/1179},
      year = {2022},
      note = {\url{}},
      url = {}
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