Based on the Polkadot ecosystem, a fairer, more transparent and more decentralized digital economy is emerging - a new model of digital assets where ownership is real, forgery is impossible, and value is fairly distributed.

Today, Polkadot, as one of the most watched public chains, has also ushered in a wave of ETF applications. Since 2025, well-known financial institutions such as Grayscale and 21Shares have successively submitted Polkadot ETF applications to the U.S. Securities and Exchange Commission (SEC), striving to provide investors with a more convenient way to invest in DOT. On March 8, the SEC confirmed the acceptance of the 19b-4 application submitted by Grayscale; on March 21, 21Shares' Polkadot spot ETF application was also confirmed by the SEC, and both are currently under review.

Now is the best time to re-examine the financing landscape of the Polkadot ecosystem - a new round of grants, bounties, and decentralized funding flows are emerging, providing more possibilities for teams that dare to think and act to turn their dreams into reality!

At present, Kusama has completed its mission relatively successfully. However, Kusama already had 10 million DOTs at the time of its creation. How to achieve breakthrough innovations in the original positioning based on the existing achievements and make rational use of project technical resources to support future development is worth our exploration and deep thinking. Before we are ready to explore Kusama in depth, let us re-understand Kusama.

Last week, Parity announced that Polkadot will natively support Ethereum smart contracts and plans to launch it first on Kusama. This upgrade marks a key step for the Polkadot ecosystem in the field of smart contracts.

Since last year, Polkadot 2.0 has become a major upgrade direction for the Polkadot ecosystem, aiming to further promote the expansion and maturity of its multi-chain ecosystem through technology optimization, governance improvement, and innovation in resource allocation mechanisms.

What did she do right to explore the career development path of Web3 from scratch? If you are now standing outside the door of the Web3 industry, what basic knowledge and industry status should you understand to help you lock in your ideal development goals faster?

From Unique Network’s CMO Charu to Parity’s Chief Legal Officer Chrissy Hill, more and more women are standing at the forefront of the ecosystem and promoting the development of the Polkadot community. Behind these trends are women who have bravely chosen to step into Web3. Today, we interviewed Anne, a woman who quit her job as a mechanical engineer and transformed herself into a Web3 developer.

On March 3, 2025, the JAM Tour China Hangzhou Station was successfully concluded at the Zijingang Campus of Zhejiang University. The event attracted a large number of blockchain enthusiasts, developers and college students. The venue was packed with people, and many even stood for hours just to catch a glimpse of Dr. Gavin Wood and learn more about the latest developments in Polkadot and JAM (Join-Accumulate Machine) technology.

Although current developers can successfully use Solidity for development in the Polkadot ecosystem through technical environment construction, contract writing and compilation, and project deployment interaction, issues such as performance compatibility, complex contract logic, and security challenges have become real obstacles that plague developers' in-depth exploration. Many developers are standing outside the door of the Web3 world, eager to learn about blockchain development through systematic technology and knowledge, and master industry knowledge such as Polkadot, Solidity, and smart contracts.

What decentralized AI projects are developing or already mature in the Polkadot ecosystem? Let’s explore together!

On the evening of February 21, 2025, the decentralized trading platform Bybit suffered the largest attack in financial history, with digital assets worth $1.46 billion stolen. This security incident has once again triggered in-depth thinking in the industry about the security architecture of digital assets. Despite the adoption of the industry-recognized high security standards - 3/3 multi-signature and hardware cold wallets, Bybit still suffered losses due to the inherent risks of "blind signing". This article will analyze the technical details of the Bybit incident, explore how the Polkadot ecosystem can fundamentally solve the blind signing problem through innovative metadata solutions, and provide useful reference for the entire blockchain industry.

This is a global tour of JAM. Gavin has given 9 JAM talks around the world, including the University of Buenos Aires, Cambridge University, Stanford University, University of Zurich, University of Tokyo, Seoul University, National University of Singapore, and recently concluded JAM talks in Hong Kong and Taipei! Next stop, he will arrive in mainland China and start the JAM Tour in Beijing, Shanghai, Hangzhou and Shenzhen!

If you want to enter Web3 development at a faster speed, then the Polkadot ecosystem is your best choice! Since the introductory blockchain development series of courses initiated and organized by OneBlock+, it has witnessed the course learning of more than 3,000 developers along the way, becoming the first batch of developer courses in China and even the world to learn the latest Web3 development framework, incubating countless potential projects for the Polkadot ecosystem and Web3 development. Today, the [Blockchain Technology Development | Solidity Development on Polkadot] course has been fully upgraded! Actively participate in interactive learning in the course and successfully complete various tasks, you will graduate successfully and have the opportunity to participate in the evaluation of outstanding students!

Since its inception, blockchain technology has been facing the fundamental challenge of scalability. To meet this challenge, the blockchain community has developed a variety of expansion solutions, among which Rollup technology has attracted much attention for its ability to significantly increase throughput while maintaining security. However, although Rollup has been widely used on multiple platforms, it still faces many challenges, especially in terms of security integration with Layer 1 blockchains, verification efficiency, and cross-chain interoperability. In this technical context, Polkadot's Parachain architecture, as an innovative blockchain design paradigm, shows similar expansion potential to Rollup, but adopts a more advanced architecture in the underlying implementation.

As the co-founder of Ethereum and the founder of the Polkadot ecosystem, Dr. Gavin Wood has been committed to promoting the cutting-edge development of blockchain technology. In 2025, the "JAM Tour" global tour initiated by Gavin Wood has already visited three cities: Cambridge, England, New Delhi, India, and Mumbai, India. February 17th is the fourth stop of this 2025 JAM Tour. This article will take you to review the Pre-JAM event on February 17th and Dr. Gavin Wood's wonderful speech in Hong Kong, and let you feel the shock and inspiration of this tour.

At the BUIDL Here Conference, Shawn Tabrizi, the lead developer of Polkadot, shared his deep insights into the blockchain ecosystem with the audience. Shawn has a rich academic background. He studied physics and mathematics at UCSB and then worked at Microsoft Azure for four years, accumulating seven years of blockchain development experience. In this article, we will review Shawn's wonderful speech at the conference, and explore in depth the differentiation of the blockchain ecosystem, the core concept of Web3, and how Polkadot promotes the progress of this revolution.

In the Polkadot ecosystem, developers of decentralized applications (dApps), web pages, and wallets typically develop using JavaScript and TypeScript. Interacting with blockchains based on the Polkadot SDK has traditionally relied on the Polkadot JS library. However, a new tool that has recently attracted much attention has emerged in the Polkadot ecosystem - Polkadot-API (PAPI), which provides a more modern, modular development experience and is optimized for light clients. This article will introduce the characteristics of PAPI, environment construction, basic usage, and its advantages in actual development.

On February 7, Messari, the world's leading cryptocurrency data analysis agency, released the Polkadot Ecosystem Report for the fourth quarter of 2024, which comprehensively analyzed the development of the Polkadot ecosystem, economic trends, technological progress, and market performance. The report shows that Polkadot's monthly transaction volume surged by 200%, DOT's market value hit a two-year high, cross-chain interoperability was greatly improved, the developer ecosystem continued to be active, and the market performance was strong. OneBlock+ compiled and sorted out the key points of the report to quickly understand the latest developments in the Polkadot ecosystem.

In order to help more people quickly master Web3 development skills, OneBlock+ has teamed up with Parity to launch the Substrate series of courses since 2020. So far, it has helped more than 3,000 developers to explore blockchain technology in depth and promote the continuous innovation of the Polkadot ecosystem and global Web3.