Verify any document. Issue any credential. Bridge any PKI.
Identity infrastructure built on W3C and IETF standards. Technologically neutral — works with any stack, any vendor, any government. Open source reference implementations anyone can deploy.
Identity infrastructure for the real world
Each use case below is either live or in active development, using open standards for identity resolution and credential verification.
Document verification
Drop a digitally signed PDF. The signature, certificate chain, and issuing authority are verified cryptographically — no account required, no data uploaded.
Cross-border PKI bridge
Costa Rica's Firma Digital PKI hierarchy mapped to did:pki DIDs. Every CA resolvable as a DID Document. A document signed in CR can be verified anywhere — one resolver endpoint, any country.
Professional credentials
Proposed framework for Verifiable Credentials for licensed professionals — doctors, lawyers, engineers. Mastery-based continuous competency model with issuance by professional bodies.
Digital driving credentials
Proposed mobile driving license architecture following ISO 18013-5, with proctored exams, decay scoring, and renewal gates — anchored to the holder's DID.
Use it today
Four surfaces, progressive adoption. Start with zero friction in the browser, go deeper as you need.
Verify
Drag and drop a signed PDF. Verify the signature, certificate chain, and issuing CA — in your browser, nothing uploaded.
verify.attestto.com →App
Sovereign identity wallet. Store credentials, take proctored exams, present proofs. Progressive Web App — works on any device.
app.attestto.com →Station
Desktop vault, signer, verifier, and mesh node. Full offline capability. Electron on macOS, Windows, and Linux.
Learn more →Extension
Browser extension for web-native verification. Validates digital signatures on any page you visit.
Downloads →W3C standards-track DID methods
Two DID methods, both on the W3C standards track, both with live resolvers. They bridge existing trust infrastructure into the DID ecosystem without replacing anything.
did:pki Read-only DIDs derived from X.509 CA certificates. If a government CA exists, it already has a DID.
did:sns Alias-anchored DIDs via Solana Name Service. Human-readable, verifiable identifiers.
resolver Unified HTTP endpoint resolving both methods. DIF Universal Resolver compatible.
Standards-based. Open source. Deployable.
We publish reference implementations for every standard we propose. Traditional vendors can adopt the standards without using our code. Or fork it. Apache 2.0.
Built to be deployed
Governments
Deploy sovereign identity infrastructure. Issue verifiable public documents. Interoperate across jurisdictions.
See Costa Rica deployment →Professionals
Verifiable credentials for your license, signature, and competency. Issued by your Colegio, carried on your device.
Explore Station →Standards bodies
Two W3C DID methods, DIF Universal Resolver integration, open test vectors, and working implementations.
Review the standards →Developers
Fork the SDKs, extend the schemas, implement new DID methods, or build modules for the credential marketplace.
Browse on GitHub →