Secure your critical data with cryptographic proof on a global, scalable proof-of-work blockchain.
Military-grade SHA-256 hashing and ECDSA signatures ensure your data's integrity.
Access and verify your notarized data from anywhere in the world, 24/7.
Every notarization includes a blockchain-verified timestamp proof.
Simple REST API integration with comprehensive documentation.
Ensure code integrity and prove deployment timestamps.
Verify location data with immutable blockchain proof.
Timestamp your intellectual property with cryptographic proof.
Notarize contracts and legal documents with Web3 signatures.
// Notarize data with a single API call
const response = await fetch('https://api.notaryhash.cloud/notarize', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
dataString: yourData,
signature: web3Signature,
publicKey: yourPublicKey
})
});