TL;DR The lack of a default underlying app (previously called the ‘authentication module’), and the need to separate application and authentication concerns were recognised as primary reasons for the slow adoption of ICS-27 Interchain Accounts (ICA). ibc-go v6.0.0 release will include changes to ICA that makes integrating the controller chain functionality…

The critical boundary layer between Tendermint and the application, known simply as the ABCI (Application BlockChain Interface), was designed in the very early days when the co-founders decided to split out the state machine from the consensus engine they were working on. The abstraction that really created Tendermint — a…

This post introduces Interchain NFT Transfer, which brings NFT capability into Cosmos, facilitates interoperability and expands the capabilities of IBC, the Inter-Blockchain Communication protocol. What is Interchain NFT Transfer？ Non-Fungible Tokens (NFTs) have changed the way we produce, distribute, trade and advertise branded goods like art, movies, and music, attracting the attention of various industries…

Central to the transport layer of IBC (Inter-Blockchain Communication) protocol are channels. Channels act as a conduit to transfer data packets between two application modules on different chains — where each channel is associated with a single application. Channel upgradability will soon become an important feature release as part of…

This post is contributed by the Datachain team. IBC plays an essential role in the enterprise space because of the trust-minimised blockchain interoperability it provides for heterogeneous blockchains and is a proven technology, as discussed in our previous post. …

Introduction Relayers are the heartbeat of Inter-Blockchain Communication (IBC). They ensure liveness of the protocol by performing the key function of ferrying packets from point A to B. Given their importance within the IBC domain, it is necessary to effectively incentivize relayer operators to adequately scale the Interchain. Until now, teams…

Our plan for delivering ABCI++ The Tendermint Core project is one which, relative to other software in the space, is long in the tooth. While Tendermint remains the industry standard in consensus engines, its journey has seen many iterations of the core development team. This lack of continuity has led…

A retrospective on the v0.35, what happened, how it happened and the decisions we’ve made going forward — Tendermint Core v0.35 was released in November 2021. Among other work, v0.35 included the first phase of a peer to peer (p2p) refactor which modified several abstractions with the aim of preparing the codebase for larger subsequent changes (i.e. libp2p). The refactor included an overhaul to: the Router – responsible…

Introduction The Inter-Blockchain Communication (IBC) protocol offers a secure, general-purpose, and fault-tolerant standard to act as the connective tissue between blockchains. Over time, IBC has arguably established itself as the benchmark for natively verified interoperability systems. The light client-based verification mechanism that IBC uses has been at the core of ensuring…