# VerixID

> VerixID is a cryptographic verification platform for digital file provenance. It establishes when a digital file was first registered using SHA-256 fingerprints, timestamps, and cryptographic signatures — without storing the file itself.

VerixID provides Proof of Origin for digital files. The technical authority site is verixid.github.io; the commercial platform is verixid.com; the MCP server for AI agents is mcp.verixid.com.

## Core Concepts

- [Proof of Origin](https://verixid.github.io/proof-of-origin/): What VerixID proves and what it does not prove.
- [How It Works](https://verixid.github.io/how-it-works/): The cryptographic flow from file to verifiable registration record.
- [Cryptography](https://verixid.github.io/cryptography/): SHA-256, Ed25519, timestamps, and signatures.
- [Security](https://verixid.github.io/security/): Zero-custody model and minimal attack surface.
- [Privacy](https://verixid.github.io/privacy/): What data is used, what is not, and why.

## For AI Agents

- [MCP Server](https://verixid.github.io/mcp/): Verify digital file fingerprints via MCP. Server ID: com.verixid/verifier.
- [MCP endpoint](https://mcp.verixid.com): Machine interface.

## For Developers

- [Developers](https://verixid.github.io/developers/): Integration concepts and technical resources.
- [GitHub](https://github.com/verixid): Source and evidence.

## Product

- [verixid.com](https://verixid.com): Submit, verify, COA, pricing.

## Optional

- [About](https://verixid.github.io/about/): VerixID ecosystem overview.

## Full Context

- [llms-full.txt](https://verixid.github.io/llms-full.txt): Complete technical reference for LLMs with large context windows.