Blockchain-grade proof for your business data
MidnightZK is a managed API gateway that anchors your data onto the Midnight blockchain with zero-knowledge proofs — no nodes, no crypto expertise required.
MidnightZK is a managed API gateway that anchors your data onto the Midnight blockchain with zero-knowledge proofs — no nodes, no crypto expertise required.
Send your data hash via our REST API. We accept any SHA-256 hash — you keep the original data.
MidnightZK generates a zero-knowledge proof and anchors it to the Midnight blockchain in a single transaction.
Receive a transaction hash and block explorer link. Anyone can independently verify your data's integrity on-chain.
Anchor carbon emission reports for EU CBAM compliance with immutable, verifiable on-chain proof.
Prove home care service records — caregiver check-ins, service details, GPS — haven't been tampered with. No personal data exposed.
Create tamper-proof records for every step in your supply chain — from origin to delivery.
Timestamp your designs, code, or research on-chain. Prove you had it first — without revealing the content.
Establish cryptographic proof that confidential business information existed at a specific point in time — for litigation or compliance.
Have data that needs tamper-proof evidence? Let's talk about how MidnightZK can work for your industry.
Contact Us →Your raw payload is processed in memory and wiped immediately. Only the hash touches the blockchain.
Each client operates in an isolated namespace with dedicated API keys, scopes, and rate limits.
Simple REST API with webhook callbacks. Integrate in hours, not weeks.
Track every transaction status from submission to on-chain confirmation via dashboard or webhook.
Answers to the questions we hear most often.
No. Only the zero-knowledge proof is written on-chain. Your raw data never leaves your system. Even the hash is processed in memory and destroyed immediately after proof generation.
No. MidnightZK handles all blockchain interactions. You only need to generate a SHA-256 hash (a standard operation in any programming language) and call a REST API.
Typically 1–3 minutes from API call to on-chain confirmation, depending on network conditions. Result is delivered via webhook — no polling required.
Midnight is a Layer-1 blockchain built by Input Output Global (IOG), the creators of Cardano. It is designed specifically for data protection, with native zero-knowledge proof support. MidnightZK is an independent service built on top of Midnight.
No. MidnightZK is an independent, community-built service. It is not affiliated with, endorsed by, or sponsored by Input Output Global or the Midnight Foundation.
Every anchor request must include an Idempotency-Key header (UUID v4). Re-submitting with the same key returns the original task without creating a duplicate chain transaction.
Yes. GET /{app_id}/verify/{hash} is public; no API key required. Anyone with the original data can re-hash and verify against the blockchain record.
Interested in using MidnightZK for your business? Leave us a message and we'll get back to you.
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