Skip to main content

​
Provable Integrity Infrastructure

TimeLockData is an API-first Provable Integrity Infrastructure that converts digital events into independently verifiable facts. It proves that specific data existed in a specific state at a specific time through cryptographic hashing, public blockchain anchoring, and eIDAS qualified timestamps. Verification is possible without trusting TimeLockData — records remain independently verifiable even if the company ceases operations.

​
Key Features

Cryptographic Hashing

SHA-256 hashing ensures data integrity at the source

Blockchain Anchoring

Public blockchain anchoring provides immutable, tamper-proof records

eIDAS Qualified Timestamps

Legally binding timestamps compliant with EU eIDAS regulation

Independent Verification

Anyone can verify data integrity without authentication or vendor dependency

REST API

Simple API-first integration into any system or workflow

Verification Certificates

Downloadable proof certificates for audits and compliance

AI Act Compliance

Article 12 logging compliance for AI platforms

No Vendor Lock-in

Open standards ensure your proofs outlive any single provider

​
Use Cases

TimeLockData serves organizations across industries that need provable data integrity:
  • Financial Services — Audit trails for transactions, regulatory compliance records
  • Insurance — Claims documentation, policy change tracking
  • Logistics & Supply Chain — Chain of custody, delivery confirmations, provenance tracking
  • Mobility & Fleet Management — Vehicle event logs, maintenance records
  • Media & Journalism — Content authentication, source verification
  • Construction & Infrastructure — Inspection records, certification tracking
  • AI Platforms — AI Act Article 12 compliance, decision logging
  • Healthcare — Patient record integrity, clinical trial documentation

​
Core Concepts

​
Categories & Subcategories

Organize your evidences hierarchically. Categories group related records (e.g., “Invoices”, “Contracts”), and subcategories provide finer classification (e.g., “Q1 2025”, “Supplier Agreements”).

​
Evidences

The core entity. Each evidence record represents a tracked digital event with metadata, a history of changes, and attached files. Every change is anchored on the blockchain with a qualified timestamp.

​
Files

Attach documents, images, or any file to categories, subcategories, or evidences. Files are stored securely and can optionally be signed with C2PA content credentials.

​
Verification

Every evidence and file gets a Merkle proof and TSA timestamp. Anyone can independently verify the integrity and existence of data without authentication.

​
API Structure

Categories
├── Subcategories
│   └── Evidences
│       ├── Files
│       └── Blockchain Events (create, update, transfer)
└── Files

Verification (public, no auth required)
├── Merkle Proofs
├── Evidence Verification
└── TSA Timestamps

​
Authentication

All API requests require an API Key passed in the X-API-Key header: 
X-API-Key: your_api_key_here

​
Quick Start

1

Get API Access

Obtain your API key from the TimeLockData Dashboard
2

Create a Category

Organize your evidence records into categories
3

Create an Evidence

Register a digital event with metadata
4

Attach Files

Upload documents and supporting files
5

Verify

Use public Merkle endpoints to verify data integrity

​
Next Steps

Quick Start Guide

Make your first API call in minutes

Authentication

Set up your API key

API Reference

Explore all available endpoints

Verification

Verify data integrity with blockchain proofs