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!

Solana proposes double disinflation amid huge ETF inflows. Solana ETFs (SOL) have attracted record net inflows in November, making them the single-largest draw in the crypto market. This institutional success, largely fueled by the network's attractive staking yield, is now colliding with a new governance proposal to execute a double disinflation. Managing a recent 30% price correction, Solana now faces a critical choice: embrace long-term scarcity and reshape its economic identity, or maintain the high yield that is currently driving its institutional gold rush. Solana supply shock: double disinflation proposal. Helius Labs recently introduced the SIMD-0411 proposal, marking one of the most substantial monetary policies proposed since Solana's launch. Developers plan to double the network's annual disinflation rate, increasing it from 15% to 30%. The accelerated timeline brings the target date for the terminal 1.5% inflation rate forward by three years. This change cuts total projected emissions by over 22 million SOL (approximately $3 billion) over the next six years. Proponents maintain that the network is mature, citing massive increases in both network revenue and DeFi throughput. They argue this growth justifies lowering the issuance schedule, which in turn reduces structural sell pressure and satisfies institutional demands for disciplined tokenomics. The drive to create scarcity is taking place during a period of intense market difficulty affecting Solana's price. Forward Industries, the largest corporate owner of SOL, is currently facing an estimated loss of $646.6 million. Upexi, the fifth-largest corporate SOL holder, has accrued approximately $31 million in unrealized losses, reflecting a 10% drop from its original purchase prices. In contrast, DeFi Development Corp. (DFDV), the proposal's first major supporter, maintains a $62 million profit. Investors pivot to yield: $419M ETF inflows. In the meantime, market flow data for November strongly validates Solana's appeal as a "productive yield asset." While major assets saw massive redemptions, Solana ETFs attracted $419.38 million in fresh capital. To be more specific, Bitcoin ETFs witnessed $3.57 billion in net redemptions, and Ether ETFs lost $1.56 billion during the same period. In other words, investors increasingly choose the steady income of Solana's 5 - 7% native staking yield over the purely speculative nature of assets like Bitcoin, whose exchange-traded products offer no yield. Everstake co-founder Bohdan Opryshko explains that retail and institutional participants now treat SOL as an income-generating tool rather than simply a speculative trade. Scarcity or yield? Data from Coinbase confirms that a compelling 67% of all circulating SOL is in staking, a ratio that Sebastien Gilquin, Head of BD and Partnerships at Trezor, cites as one of the strongest staking profiles among proof-of-stake blockchains. Total staked SOL climbed this year to 407 million, and retail delegators increased their holdings by over 238,000 SOL even during the 30% downturn. The data sets create a critical economic conflict. Solana's ETFs success hinges on the high yield, which depends on the current inflation rate. Yet, SIMD-0411 seeks to cut the inflation rate in half to achieve scarcity. If the community approves the double disinflation plan, the resulting reduction in emissions will cut the staking yield, potentially halving the rate that currently protects SOL from the market outflows hurting its competitors.