Explore the stories below for curated news, stories, and inspiration from within the Cardano ecosystem.
In this session of the Cardano Developer Office Hours, Giovanni Gargiulo, Senior Software Engineer – DevOps at the Cardano Foundation, presents the new Token Registry API v2 with full CIP-68 support. He demonstrates API endpoints, explains best practices for using the query_priority parameter, and covers support for tokens under both CIP-26 and CIP-68. A live demo shows practical use cases and integration opportunities for developers.
The development report highlights continued ecosystem growth, with the number of projects building on Cardano reaching 2,004. The consensus team enhanced the Leios simulator and improved resource management in UTXO-HD. The Lace team released v.1.24 with multichain and user-centric upgrades. Mithril focused on the DMQ network, while Hydra released v.0.22.0. The community also voted in favor of the Intersect budget info action, paving the way for treasury withdrawals.
A Roundtable Talk on June 25, 2025, provided a platform for candidates in the Constitutional Committee election. The session allowed individuals and groups to introduce their background, vision, and motivation for the role. Each candidate answered the same set of questions in a timed format, ensuring a fair and structured showcase for DReps and the community to make informed voting decisions before the June 30 deadline.
The Cardano Community Digest recaps the Cardano Berlin Hackathon and the Eureka Crypto Conference, both community-driven events from Berlin Blockchain Week. It highlights Midnight's new Tokenomics & Incentives paper and the release of animated governance flowcharts on cardano.org. Additionally, the digest features the latest from Essential Cardano's Dev Report and an introduction to the Cardano Blueprint, a resource designed to simplify understanding of the protocol.
A June 23, 2025, blog post by Fergie Miller summarizes a Cardano R&D session on Layer-2 expansion beyond Hydra. The session featured presentations on Midgard (an optimistic rollup), a zk-rollup from zkFold SA, a ZK bridge from Eryx Cooperativa, and Gummiworm (a scalable rollup from Sundae Labs). Key discussion themes included interoperability, capital fragmentation, and the importance of security.
A June 23, 2025, IOHK blog post by a team of researchers explores the concept of slashing as a security mechanism in blockchains. It contrasts Ethereum's slashing-based model, where validators risk losing staked assets for misbehavior, with Cardano's non-slashing approach. The authors argue that slashing is ineffective against majority attacks and can deter participation, while Cardano’s method, relying on formal verification and stake-weighted incentives, provides robust security without these drawbacks.
Input Output Global (IOG) introduced the Cardano Blueprint, a comprehensive, open-source reference guide to the platform. This living document is designed to be a single source of truth, detailing Cardano's core components, architecture, protocols, and design principles. The Blueprint aims to enhance transparency and accessibility for developers, researchers, and the wider community. By providing a standardized technical reference, it seeks to improve the onboarding process and foster a deeper understanding of Cardano's intricacies.
The report highlights significant work by the ledger team to modernize the codebase and prepare for an upcoming intra-era hard fork. This included enhancing CDDL specifications, reducing technical debt, and conducting preliminary work on nested transactions. The report also touched upon future node improvements like log-structured merge (LSM) trees and revised stake pool incentives. Governance participation continued to grow, with an increase in the number of registered DReps.
In this session of the Cardano Developer Office Hours, Fabian Bormann, Team Lead of Ecosystem Engineering at the Cardano Foundation, presents UVerify, a lightweight tool for certifying and verifying data on Cardano without tokens or NFTs. He covers datums as an alternative to metadata, SDKs and white-label tools for devs, and real-world use cases like documents, credentials, and oracles. A live demo shows UVerify in action. The roadmap explores frictionless integrations and future opportunities for verifiable interactions across ecosystems.
The report highlights the release of Lace wallet v.1.23, which features a more accurate pricing feed for Cardano native tokens in response to community feedback. On the scaling front, the Mithril team delivered support for node v.10.4.1 and UTXO-HD in their tools and advanced the development of the DMQ node. The Leios team finalized an analysis of overcollateralization models and progressed on their Rust-based simulation framework for evaluating transaction duplication and conflict likelihood.
