Helius is acquiring the Solana privacy startup, Light Protocol, to build an onchain privacy solution.

Solana Research Institute. Helius joins the Solana Research Institute as Founding Member. April 30, 2026 Helius Blockchain Technologies, Inc. has joined the Solana Research Institute (SRI) as a Founding Member, and are proud to share the SRI's inaugural research piece: A Financial Institution's Guide to Solana. As a Founding Member of the SRI alongside Solana Foundation, Jito, R3, and other ecosystem partners, Helius Blockchain Technologies, Inc. is committed to advancing rigorous, institutional research as public stewards of the Solana network. The Solana Research Institute is a Swiss-based, not-for-profit applied research forum dedicated to examining how financial institutions can participate in blockchain-based financial systems. Founded by Angus Scott - formerly Head of Innovation at Euroclear and Head of Product at CLS - and seeded by the Solana Foundation, the SRI provides systematic analysis of onchain infrastructure, evaluating the transition from legacy frameworks to high-performance capital markets. The Institute brings together practitioners from traditional finance and the Solana ecosystem through research, structured discussions, and working groups. The SRI's focus covers the technical, legal, economic, and structural questions that will determine how the transition to blockchain-based rails for trading and payments will unfold. Critically, the Solana Research Institute is not an advocacy organization. Its editorial stance places equal weight on performance data and institutional adoption as it does on stability concerns, concentration risks, regulatory gaps, and areas of improvement across the ecosystem. This rigor and integrity are the point. Financial institutions will only trust analyses that treat the hard questions seriously. The SRI is built to meet this bar. The case for Solana at an institutional scale is no longer theoretical. USDC on Solana circulates 15.5x faster than on Ethereum. BlackRock, State Street, Franklin Templeton, Visa, and Fidelity all have live deployments on the network. The protocol has maintained 100% uptime since February 2024, and Alpenglow is set to bring finality down to 150ms - a latency profile that is becoming competitive with traditional market infrastructure. The regulatory picture is also shifting: * SOL, the native asset on the Solana blockchain, has been officially classified as a digital commodity by the SEC and the CFTC. * The Genius Act has provided long-needed clarity for stablecoin issuance in the United States. * The Eurosystem's Appia Roadmap signals that public-chain participation is now on the agenda of central bank planners. What has been missing is a structured resource that meets senior practitioners inside financial institutions on their own terms. The Solana Research Institute's first publication, A Financial Institution's Guide to Solana, is neither a whitepaper nor a promotional piece. It is a practical reference covering Solana's technology, economics, governance, regulatory context, and the institutional products already live on the network, written in clear, accessible language. Helius Blockchain Technologies, Inc. believe it will become the standard onboarding reference for banks, asset managers, market infrastructure providers, and regulators engaging with Solana for the first time. Solana is the most battle-tested and scalable blockchain network in existence today that is capable of supporting the global demand for onchain trading, payments, and emerging digital asset use cases. As one of Solana's leading infrastructure providers and publishers of technical content, Helius Blockchain Technologies, Inc. is uniquely positioned to help shape the institutional adoption of Solana. Helius Blockchain Technologies, Inc. operate the RPC nodes, data streaming services, and transaction landing infrastructure that Solana's most influential teams, including Phantom, Jupiter, and Coinbase, depend on. In addition to running one of the largest validators on Solana ourselves, Helius Blockchain Technologies, Inc. is trusted to run SOC 2 Type II compliant validators for institutions like Bitwise, which operates the largest Solana Staking ETF to date. Because Helius Blockchain Technologies, Inc. is exclusively focused on serving Solana, Helius Blockchain Technologies, Inc. has a unique perspective and depth of knowledge on how to meet the security, compliance, and operational requirements of institutions. This experience enables Helius Blockchain Technologies, Inc. to meaningfully contribute to institutional conversations regarding Solana's technology, economics, and more. From day one, Helius Blockchain Technologies, Inc. believed that Solana's growth depended on education. Helius Blockchain Technologies, Inc. has spent years building one of the most comprehensive bodies of public writing on the network and, in doing so, have become one of the leading publishers of Solana research and developer content. From institutional and protocol-level research reports to developer tutorials, interviews with core contributors, and cultural essays on the philosophical and sociocultural foundations underpinning blockchain technology, there are few topics Helius Blockchain Technologies, Inc. haven't covered. Its work is read by builders, validators, institutional analysts, policy makers, and has even been cited by the White House. Joining a research body that aligns with its commitment to academic rigor and its desire to present the institutional case for Solana is a natural extension of the work Helius Blockchain Technologies, Inc. has been doing for years. Its commitment to Solana and its builders has never wavered. As Solana enters a new era of mainstream growth, Helius Blockchain Technologies, Inc. is doubling down. Solana's success as institutional financial infrastructure depends on the quality of the discourse around it, the depth of analysis available to decision-makers, and the willingness of the ecosystem's core participants to responsibly steward the protocol in public. The Solana Research Institute is where that hard work happens, and Helius Blockchain Technologies, Inc. look forward to being part of it. Table of Contents

Introducing token account filters for gTFA. Last October Helius Blockchain Technologies, Inc. released getTransactionsForAddress, a new Solana RPC call for querying historical data that combines getSignaturesForAddress and getTransaction into one method. Today, Helius Blockchain Technologies, Inc. is excited to announce getTransactionsForAddress (gTFA) can now query a wallet's token transfer history with a single RPC call. The new tokenAccounts feature allows users to include transactions for the wallet's associated token accounts - previously omitted from gTFA and its predecessor, getSignaturesForAddress. Before, developers were forced to query getTokenAccountsByOwner and then getSignaturesForAddress for every token account. This was slow and expensive, often requiring 100s of extra RPC calls. Now, it only takes a single call to getTransactionsForAddress with tokenAccounts. On Solana, your wallet doesn't actually hold tokens directly. Instead, your wallet owns Associated Token Accounts (ATAs), and those token accounts hold your tokens. For example, when someone sends you USDC, it goes to your USDC token account instead of your main wallet address. This creates a major headache when querying wallet transaction history: When you call getSignaturesForAddress on a wallet, you only get transactions that directly reference that wallet address. Token transfers that interact with your token accounts - but don't mention your wallet - simply don't show up. Before today, developers had to implement a tedious workaround: * Call getTokenAccountsByOwner to get token accounts for a wallet * Call getSignaturesForAddress for the wallet itself * Call getSignaturesForAddress for every single token account * Merge all results together * Deduplicate (many transactions touch multiple accounts) * Sort chronologically A wallet with 50 token accounts requires 51+ RPC calls just to build a complete history. Professional traders, heavy DeFi users, or recreational memecoin traders can have hundreds of token accounts. Want the 20 most recent transactions? You can't just fetch 20 from each source and merge - you need to fetch everything, dedupe, sort, and only then take the first 20 transactions. There's no way to efficiently paginate without over-fetching. Each RPC call has overhead. Multiplying that overhead by 100+ calls per user request gets expensive fast, especially at scale. With the new tokenAccounts filter, you can get a complete wallet history in a single RPC request: The tokenAccounts filter provides three options: none, balanceChanged, and all. When the tokenAccounts filter is set to none, transactions must reference the wallet address. When balanceChanged is applied, transactions reference the wallet address, or modify the balance of a tokenAccount owned by the wallet. Setting tokenAccounts to all requires that transactions reference the address of the wallet or a token account owned by the wallet. * Wallets showing complete transaction history * Portfolio trackers that need every token movement * Tax software calculating gains/losses across all tokens * Analytics dashboards displaying user activity Simply add tokenAccounts: balanceChanged (or all) to your filters object and you're set!