How It Works
Your data, encrypted, from the moment it leaves your device.
Five steps. One vault. An intelligence that reads your biology, not a population average. Here's exactly what happens when you use Amach.
Export and upload your health data
LiveExport your Apple Health archive on iOS and upload it to Amach. We also accept PDFs: lab results, DEXA scans, doctor notes, prescriptions. Everything is parsed entirely inside your browser. Nothing touches a server at this stage.
Encrypted before it leaves your device
LiveYour data is encrypted with AES-256 using keys derived from your wallet signature before it ever leaves your browser. No one at Amach has access to the plaintext. Not in transit, not at rest. The keys never exist on our servers, only in your browser session.
Stored permanently on Storj
LiveYour encrypted data is written to Storj, a decentralised storage network with no single point of failure or control. It's tied to your wallet address and persists across devices and sessions. Upload once, read anywhere. Clear your browser, your data is still there.
Your identity anchored on ZKsync Era
Testnet LiveYour health profile — birth date, sex, height, weight — is encrypted and written to a smart contract on ZKsync Era Sepolia. It's your permanent on-chain health identity. Tamper-evident, verifiable, and updatable only by you. Mainnet follows when the protocol matures.
Luma reads your data and talks to you about it
LiveLuma is Amach's AI, powered by Venice AI. She has access to your full health record: every metric, every uploaded document, every data point you've collected. Venice is privacy-native by design: no conversation data is stored on their servers, and their infrastructure has been verified private through cryptographic attestations. Ask Luma about your HRV trends, your bloodwork patterns, how your sleep correlates with recovery. She reads your biology, not a textbook average.
The Stack
Three layers. All live.
Storage
Storj
Decentralised, encrypted object storage. Your health files live here permanently, accessible only with your wallet-derived key. No Amach server in the path.
Identity
ZKsync Era
Your profile contract lives on ZKsync Era Sepolia testnet. Encrypted on-chain, updatable only by the wallet that created it. Mainnet deployment follows protocol maturity.
Intelligence
Venice AI
Privacy-native AI that processes your data without retaining it. Luma uses Venice to read your full health record and surface patterns specific to your biology, not population norms.
Privacy
What Amach can and cannot see.
We can see
- ·That you connected a wallet
- ·That an encrypted blob exists on Storj
- ·That a profile record exists on ZKsync
- ·That the AI chat was used (not the content)
We cannot see
- ·Your Apple Health data
- ·Your uploaded PDFs or lab results
- ·The contents of your on-chain profile
- ·Your AI conversations with Luma
- ·Anything in your encrypted Storj vault
Questions
What happens if I clear my browser?
Your health data is stored on Storj, not in your browser. Clear away. When you reconnect your wallet, everything is still there. Your ZKsync profile is on-chain, permanent.
Do I need to re-upload my data on a new device?
No. Connect your wallet on any device and your data loads from Storj. It follows your wallet, not your browser.
Can Amach read my health data?
No. Your data is encrypted with a key derived from your wallet signature. We never see it. If we tried, we'd read noise.
What is Venice AI and why does Luma use it?
Venice AI is a privacy-native inference provider that doesn't retain conversation data. We chose it specifically because the AI that reads your health information shouldn't be building a dataset from it.
When does ZKsync move to mainnet?
When the protocol is stable enough to warrant it. We're on Sepolia testnet deliberately, building the right foundation before committing to mainnet immutability.
How do I give feedback?
Email directly: amachhealth@gmail.com. Every message is read and responded to personally.
Your data is ready to work for you.
Connect your wallet, upload your health export, and ask Luma anything. It takes about five minutes.