Instanodes, an India-based blockchain infrastructure provider, has developed and tested post-quantum account implementations for EVM-compatible networks and Solana using hash-based digital signatures for account-level authorisation. On Ethereum, verification integrates with programmable smart accounts including ERC-4337; on Solana, custom program-level verification is required, though native Ed25519 transaction signing remains unchanged. The company cites 2026 quantum research from Google Quantum AI and IonQ as motivation. Expanded services include quantum-readiness assessments, migration roadmaps, custom cryptographic engineering, and infrastructure across more than 50 networks.

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