Key Takeaways

• Sony isn’t just testing Web3, it’s making a giant leap with its Soneium blockchain.
• Built on Optimism’s OP Stack, Sony is bringing its media and IP expertise into Web3 with the intent for widespread appeal.
• Soneium is part of the Astar collective, a representation of Japan’s collaborative approach to Web3. This contrasts the western world’s fragmented approach to decentralized networks. 
• With its mainnet going live in January 2025, Soneium reached over 1.47 million transactions and $130 million total value secured (TVS) in its first quarter alone.

Sony’s Blockchain Bet You Haven’t Heard Of

Tech giant Sony, the one behind the Walkman, the PlayStation, and the compact disc (CD), is bringing its knack for industry-defining solutions to Web3.

Sony’s blockchain division, Sony Block Solution Labs, announced its Soneium infrastructure network in August 2024 with the intent to make “an infrastructure that everyone can use on a daily basis.” It launched Soneium’s testnet shortly afterward.

Established in October 2023, Sony Block Solution Labs quietly toiled away at Soneium for a little under a year before its testnet launch. It partnered with Startale Group, a company attempting to build robust Web3 infrastructure. Startale’s claim to fame is the Astar Network, a sort of umbrella organization that funds decentralized finance (DeFi) platforms that are interoperable with its own.

What Is Soneium? Origins and Core Technology

Positioned as a “versatile Superchain,” Soneium is an Ethereum layer-2 solution with its tech stack based on Optimism’s OP Stack. 

Soneium relies on Optimism’s optimistic rollup consensus mechanism, meaning it can leverage the security of its parent blockchain (Etheruem) instead of providing its own. Optimistic rollups bundle sets of transactions together and send them to the mainnet, increasing scalability. 

Soneium utilizes Ethereum’s Ether (ETH) over a native token, and is Ethereum Virtual Machine (EVM) compatible. The network also utilizes Astar’s ACS token. Astar is a Japan-based blockchain collective that helped found Soneium and has played a large part in its development. By utilizing ETH and ACS over a native token, Soneium can access those existing networks’ liquidity without requiring users to manage yet another asset.

The project has the Soneium mainnet and its testnet, Soneium Monato. Finally, there’s Soneium Spark, an incubator for aspiring dApp developers to receive funding and mentorship. 

Layer-2 for What? Use Cases and Ecosystem Vision

In the project’s announcement, Sony Block Solutions Labs’ Chairman Jun Watanabe stated their goal was to “create diverse businesses and new uses cases with the aim of delivering customer value that can only be enjoyed through Web3 technology.” The project’s website reinforces this, calling for DeFi developers in the decentralized exchange (DEX), lending, and yield farming spaces alongside non-fungible tokens (NFTs), gaming, and even social media.

The group has been active since its launch, establishing multiple partnerships across a variety of industries including that of gaming giant Square Enix. In May 2025, the publisher announced it would relaunch its flagship blockchain game, SYMBIOGENESIS, on Soneium. This is just one of many experiences the network is hoping to provide:

• Real world assets (RWAs): Real world assets are tokenized versions of physical assets built to increase their utility. Soneium partnered with Plume in April 2025 to offer RWA yield capabilities. This partnership enables tokenizing assets like real estate, art, and intellectual properties, creating new investment opportunities for previously illiquid assets. 
• Web3 Gaming (GameFi): Japan’s largest Web3 collective, Astar, relaunched its digital collectibles game, formerly called Yoki Origins, on Soneium. Y1oki Legacy is the rebranded name. It launched in April 2025. When paired with Soneium’s support for NFT marketplaces, this partnership combines Sony’s gaming experience (PlayStation) with digital collectibles (NFTs) in an attempt to provide gamers with real-world value for their in-game efforts. 
• Cross-dApp Identity: In March 2025, Soneium integrated with Moca Network’s identity technology to offer Anime ID — a service providing cross-dApp account functionality for a unified network identity. The group plans to support other entertainment avenues over time, including anime distribution and interactive storytelling.
• Cross-chain data: In April 2025, Soneium launched Chainlink functionality for data interoperability, allowing developers to pull info like price feeds from other networks. This integration is especially useful for DeFi apps that require real-time pricing information, such as trading or RWA dApps.

All in all, Sonenium is a network not unlike Ethereum contemporaries such as Solana. Sony’s layer-2 approach takes advantage of Ethereum’s security only without sacrificing scalability, a critical component for real-world Web3 adoption.

Powered by Astar: Japan’s Web3 Ambitions Take Shape

Astar is a significant reason for Soneium’s technological prowess. The collective has partnered with the Japanese government and big brands like Toyota. Thanks to Chainlink’s cross-chain data solutions, Soneium can take advantage of Astar’s following capabilities:

• Regulatory assistance: Astar’s founder, Sota Watanabe, advises the Japanese government on its Web3 policies. This connection could assist Soneium in abiding by regulatory standards as they develop.
• Collective opportunity: With Astar transitioning into a sort of incubator for Web3 entities across Asia, Soneium can benefit from the technology and partnerships established.
• Technical capabilities: Astar is Japan’s most popular smart contract platform. As a Polkadot Parachain, a dApp-specific blockchain that runs in parallel to Polkadot’s mainchain, Astar is compatible with the EVM and WebAssembly (Wasm) environments and built with interoperability in mind. With Soneium’s goal of becoming an “infrastructure that everyone can use on a daily basis,” Astar can advise the nascent chain on cross-chain compatibility.

Notably, Japan’s approach to blockchain development has been a unified one, rather than split. Web3 entities are known to partner and share technologies — a concentrated effort to develop Web3 together. Soneium and Astar are no exception.

Privacy, Performance, and Interoperability: What Sets Soneium Apart?

Soneium is entering a crowded space. Why should developers choose Soneium over other networks? It boasts the following:

• Performance: As a layer-2 solution built on the OP Stack, Soneium is quite scalable. The OP Stack’s optimistic rollups batch transactions for verification on the Etheruem mainnet, decongesting the Soneium network. Soneium’s “Fast Finality Layer” speeds up transaction finality as well, working with EigenLayer, Astar Network, and AltLayer to process transactions in under 10 seconds, if the dApp demands it. This is all to speed up transaction confirmation times and reduce latency. 
• Privacy: Optimistic rollups are an evolution of classical blockchain architecture, but they’re hardly private. If anything, Soneium’s use of Optimism presents a transparent approach to Web3. As a corporate entity, transparency is a great way to win over the decentralized crowd. dApp developers can build privacy-focused projects on top of Sonium’s architecture as well, for those who need it.
• Interoperability: Soneium’s Chainlink integration, EVM compatibility, and enmeshment into the Optimism ecosystem of blockchains bodes well for interoperability. From the start, developers have access to the liquidity of multiple ecosystems, jumpstarting their potential to build a long-lasting dApp.

What Comes Next: Dev Adoption, Token Use, and Roadmap

Of course, no matter how promising a project may seem, it’s only as successful as its user base. Fortunately for Soneium, the network recorded over 2.33 million accounts as of April 30, 2025, with 1.47 million transactions in that same 24-hour period.

The first quarter of Soneium’s main network launch resulted in over $130 million in Total Value Secured (TVS) — a significant number, with the mainnet only being live since January 14, 2025. 

The network also hosts multiple hackathons to boost developer engagement. One of its recent hackathons paid over $30,000 in bounties and provided post-hackathon support for successful projects.

Developers are currently flocking to the project, as you can see in its ecosystem map. In its first few months, Soneium was home to over 200 project launches.

Finally, the Uniswap decentralized exchange recently listed Soneium network as a swap/bridging option, bringing further awareness to the project. 

It appears that Soneium will continue making partnerships to offer more utility, delivering on its mission to create an accessible, feature-rich Web3 ecosystem. Soneium plans to join Optimism’s Superchain as well. Superchain is an ecosystem of blockchain networks built using the OP Stack. The network considers it an umbrella of layer-2 solutions built to flesh out Web3’s potential. 

Can Sonenium Become Asia’s Answer to Base or Optimism?

Other layer-2 projects like Base are attempting a similar, “holistic” approach to Web3, providing a user-powered platform to rival the internet as you know it.

However, many of these projects, including Soneium and Base themselves, are built on Optimism’s OP Stack. This presents the question: which will emerge as Optimism’s dominant platform? Optimism itself is a layer-2 Ethereum solution, but the answer, as always, lies in the userbase. Community sentiment is essential. 

Statistically, Soneium’s mainnet launch was a success. However, some users brought up the centralization risks of a big company building an internet successor. Almost to capitalize on this point, Sonieum was accused of “blacklisting” certain contract addresses due to potential IP infringement — not the best look for a supposedly open network in some eyes.

Whether or not the network succeeds, one cannot understate the scale of its partnerships alongside its existing slew of dApps. All this to say, Soneium may be a corporate project in a field meant to be anything but, though it’s making a concentrated effort to carve out a lasting presence in Web3’s history.