Universal Proof Infrastructure
One API for cryptographic proof across every industry. Timestamps, signatures, and blockchain anchoring that hold up in court.
Enterprise Solutions
Industry-specific APIs with dedicated endpoints, compliance support, and domain expertise
Insurance Claims Documentation
Cryptographic proof for every claim, every time
Legal Contracts & Evidence
Court-admissible proof for the digital age
Compliance & Audit Trails
Immutable records for regulatory requirements
Creative & Media
Prove authenticity, protect IP, and establish provenance for creative works
Content Authenticity
Prove your content is real in a world of AI fakes
IP & Prior Art Protection
Defensible proof of innovation timestamp
AI Training Data Provenance
Prove consent and licensing for AI training data
Emerging Markets
Next-generation verification for healthcare, real estate, supply chain, and AI training
How CertNode Works
Three layers of cryptographic proof, one simple API
Submit Your Data
Use our API or dashboard to submit your data. We compute a SHA-256 hash that uniquely identifies your content.
Get Cryptographic Proof
We create a multi-layer proof: ES256 signature, RFC 3161 legal timestamp, and Bitcoin blockchain anchor.
Verify Anytime
Get a public verification URL. Embed badges in your systems. Export independently verifiable evidence when needed.
import { CertNode } from '@certnode/sdk'
const proof = await certnode.attestations.create({
data: yourData,
type: 'document'
})
console.log(proof.verifyUrl) // https://certnode.io/verify/...Ready to Add Cryptographic Proof?
Start your 7-day free trial. No credit card required. Full API access.