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Instanodes announced post-quantum account implementations for Ethereum Virtual Machine-compatible networks and Solana, using hash-based signatures for account-level authorisation. The company also offers cryptographic assessments and migration planning; it has not published independent test results or detailed performance figures in the supplied announcement.
Instanodes announced post-quantum account implementations for Ethereum Virtual Machine (EVM)-compatible networks and Solana, saying they use hash-based digital signatures to authorise accounts. The blockchain infrastructure company is also offering quantum-readiness assessments and custom cryptographic engineering to businesses reviewing how future quantum computing could affect digital-asset security.
Instanodes said it has developed and tested account implementations that use hash-based signatures in place of conventional elliptic-curve signatures for account-level asset authorisation. It said verification mechanisms have been adapted to the execution environment of each blockchain. The announcement does not provide technical benchmarks, independent test results, or details about how broadly the implementations have been deployed.
On Ethereum, the company said verification can be integrated into programmable smart-account designs, including ERC-4337, which allows custom signature-validation logic. For Solana, the approach requires custom program-level verification and asset-control mechanisms. Instanodes explicitly says the Solana design does not replace the network’s native transaction-signature infrastructure, which continues to use Ed25519.
The company’s expanded services include reviews of cryptographic dependencies, identification of potentially quantum-vulnerable components, migration planning, and custom on-chain verification work. Instanodes says it serves exchanges, custodians, and blockchain protocols. It describes itself as a provider of infrastructure across more than 50 blockchain networks, including RPC endpoints, dedicated nodes, validators, and rollup infrastructure.
Account Security Before Quantum Threats
The announcement addresses a longer-term security concern for organisations that hold or move digital assets: a future capable quantum computer could threaten some cryptographic methods used in today’s systems. Blockchain accounts commonly rely on elliptic-curve cryptography to authorise transactions, so evaluating alternatives may require changes not only to signatures but also to wallet design, custody procedures, smart contracts, and asset-control rules.
Instanodes’ proposal focuses on the account authorisation layer rather than claiming to change the underlying networks’ full transaction-signing systems. That distinction matters for users and institutions assessing exposure: a custom smart account may use a different verification method while the network’s native signing infrastructure remains in place. The announcement presents the implementations as an option for evaluation and preparation, not evidence that Ethereum or Solana has migrated to post-quantum cryptography.
For exchanges and custodians, the practical relevance lies in planning and compatibility. Any change to account authorisation can affect how assets are controlled and how existing software interacts with a blockchain. The company’s assessments and engineering services are intended to help organisations map those dependencies, although the announcement does not establish that the proposed designs are ready for broad production use.
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The Scope of Instanodes’ Approach
Instanodes framed its announcement against recent research on possible quantum threats. Its press release points to resource estimates published by Google Quantum AI in March 2026 and IonQ in September 2026, describing them as updated examinations of how future fault-tolerant quantum computers might threaten widely used cryptography. Those studies are cited as part of the rationale for readiness work; the announcement does not say that a quantum computer can currently break the cryptography protecting Ethereum or Solana accounts.
The company’s proposed response is based on hash-based digital signatures and account-level verification adapted for each chain. Ethereum’s programmable smart-account designs can support custom validation logic, according to the announcement. Solana requires custom programs for its analogous account-level approach, while its native transaction signatures remain Ed25519. These are distinct implementation paths, not a single network-wide upgrade.
Instanodes’ offering combines those account designs with readiness reviews and migration planning. Its broader infrastructure business includes node and validator services, but the announcement does not say that all of its existing customers or infrastructure will move to post-quantum account systems.
“The implementations use hash-based digital signatures for account-level authorisation.”
— Instanodes, in its announcement
Testing, Adoption and Deployment
The announcement does not disclose independent evaluations, performance measurements, audit results, or deployment details for the implementations. It is also unclear which specific networks, wallets, custody systems, or protocols have integrated them, and whether any customers are using the designs in production. The company’s statement that the implementations have been tested is not accompanied by a description of the test environment or results.
Further technical questions include how the account designs handle key management, recovery, transaction costs, and compatibility with existing applications. The announcement also does not set out a timeline for wider availability or specify which hash-based signature schemes are used. No evidence in the supplied material indicates that current blockchain cryptography has been broken by quantum computers; the announcement is about preparation for a possible future risk.
Customer Reviews and Technical Details
Instanodes says businesses assessing post-quantum exposure can contact its engineering team to discuss technical requirements and services. The next concrete developments to watch for are published implementation details, external security reviews, and evidence of customer integrations. Those would help organisations judge how the account designs perform and how they fit existing custody, wallet, and protocol systems.
The announcement provides no rollout schedule or named customer deployments. Until further information is released, the implementations should be understood as company-developed options and services for assessment, rather than a confirmed change to Ethereum’s or Solana’s native cryptographic infrastructure.
Key Questions
What did Instanodes announce?
Instanodes announced post-quantum account implementations for EVM-compatible networks and Solana, alongside cryptographic assessments, migration planning, and custom engineering services.
How do the proposed accounts work?
The company says they use hash-based digital signatures for account-level authorisation, with verification adapted to each blockchain’s execution environment. The announcement does not specify the signature schemes or publish performance results.
Does the Solana approach replace Ed25519?
No. Instanodes says its Solana design uses custom program-level verification and does not replace native transaction signatures, which continue to use Ed25519.
Are Ethereum or Solana currently using these accounts network-wide?
The announcement does not report a network-wide change or identify production deployments. It describes company-developed account implementations intended for integration and evaluation.
Has quantum computing already broken blockchain account security?
The supplied announcement presents quantum computing as a potential future risk and cites recent resource-estimate research. It does not claim that current quantum computers can break Ethereum or Solana account cryptography.
Source: thequantuminsider.com
