Provable data timestamp, integrity, and provenance.
Know what's true.
Create tamper-evident timestamps, provable by anyone, that can't be backdated or forged. Perfect for protecting your most valuable data or intellectual property.
Not sure where to start? Just ask.
Ask the assistant for a tailored answer, or browse the knowledge base to explore how Truestamp proves when data existed and verifies its integrity.
Three Pillars of Data Trust
Truestamp provides cryptographic proof across the three fundamental dimensions of data integrity
Timestamp
Prove Exactly When
Prove exactly when your data was submitted with cryptographic certainty. Truestamp timestamps are immutable and independently verifiable. No one can backdate, forge, or alter them.
Integrity
Ensure Data Unchanged
Know with certainty that your data hasn't been altered. Truestamp creates a unique cryptographic fingerprint of your data at submission. Even the smallest change is instantly detectable.
Provenance
Track Origin & History
Trace your data back to its source with a complete, signed chain of evidence. Every step from submission to blockchain commitment is cryptographically linked and publicly verifiable.
How It Works
Three steps to create cryptographic proof of your data's existence and integrity
Create Your Item
Submit a fingerprint (hash) of an external file you keep yourself, or submit the claims content directly when the claims itself is what you want to prove. Either way, only the data you choose to send reaches Truestamp.
Record on Our Blockchain
Every minute, Truestamp combines all submitted fingerprints into a single verifiable structure called a Merkle tree. Each item receives its own cryptographic proof linking it to the tree's root hash, which is recorded on the Truestamp blockchain.
Commit to Public Blockchains
Periodically, Truestamp combines its recent blocks into a compact cryptographic summary and records it on Stellar and Bitcoin. Your item's proof includes a path from your data through this summary to the public blockchain record, verifiable by anyone.
Built to Be Trusted
From individuals to enterprises, Truestamp protects what matters most.
Legal & Compliance
- Contract timestamps and digital signatures
- Evidence preservation for litigation
- Regulatory compliance audit trails
Intellectual Property
- Copyright protection for creative works
- Patent prior art documentation
- Trade secret provenance tracking
Healthcare & Research
- Clinical trial data integrity
- Research findings timestamping
- Patient record provenance
Financial Services
- Transaction record verification
- KYC/AML documentation
- Regulatory reporting compliance
Media & Publishing
- Content authenticity verification
- Editorial timestamp integrity
- Digital rights management
- Chronolocation verification for investigative journalism
Supply Chain
- Product provenance tracking
- Certification chain verification
- Quality assurance documentation
Perfect for Individuals Too
Protect your personal work and ideas with the same production-ready cryptographic security
Creative Professionals
- Artwork and design portfolio protection
- Music and audio composition timestamps
- Written content and manuscript proof
Researchers & Academics
- Research findings and data timestamps
- Academic paper submission proof
- Laboratory notebook verification
Entrepreneurs & Inventors
- Business idea and concept protection
- Invention disclosure documentation
- Product development milestone proof
Don't see your specific use case? Truestamp works for any individual or organization requiring data integrity proof.
Discuss Your Use CaseThe Technology Behind Truestamp
Production-ready cryptographic standards meet modern blockchain architecture
Cryptographic Standards
SHA-256 Hashing
Industry-standard cryptographic hashing for data integrity verification
Ed25519 Signatures
Modern elliptic curve signatures for blockchain authentication
Merkle Tree Proofs
Efficient cryptographic verification with minimal data requirements
Immutable Ledger
Append-only blockchain architecture with cryptographic chaining
Verifiable Entropy Beacons
Real-time random data from external sources is woven into every block, creating bi-directional links that prove our blockchain existed alongside public records
Developer Experience
REST API
OpenAPI-documented JSON endpoints for everything from quick item submission to full integrations, including automation platforms like Zapier and n8n
GraphQL API
Flexible query interface for complex data requirements
Multi-Tenant
Team-based architecture with role-based access control
API Authentication
Secure API keys with hashed storage and expiration management
Public Verification
Independent timestamp verification without API dependencies
Security First
Truestamp operates with production-ready security practices. Cryptographic hashes ensure data integrity without exposing sensitive information. Complete item redaction provides a right to be forgotten when you need it.
Platform Capabilities
Everything you need for comprehensive data integrity and provenance management
Public Auditability
Anyone can independently verify your timestamps without needing access to Truestamp's systems. Complete transparency and decentralized verification.
Instant Verification
Real-time validation of data integrity and timestamp authenticity. Get immediate proof results in milliseconds.
Team Collaboration
Multi-tenant architecture with role-based access control. Organize your timestamping across teams and projects.
Comprehensive APIs
REST and GraphQL APIs for any integration. From simple automation platforms to full-service application development.
Merkle Proof System
Efficient cryptographic verification with minimal data requirements. Prove inclusion in blockchain without downloading entire blocks.
Privacy by Design
Truestamp stores only cryptographic hashes and metadata you choose to provide. Complete item redaction gives you a right to be forgotten whenever you need it.
Proof of IP that stays with your company
Configure a team so that every timestamped item belongs to the team, not the individual author. When an employee who timestamped company IP on Truestamp leaves the company, the proof stays with the company, not on that employee's personal account.
Built for invention disclosures, lab notebooks, and work-for-hire IP
- Items timestamped on corporate teams belong to the team, not the individual author.
- Invitees explicitly acknowledge the team's ownership terms before joining, creating an audit-ready record of consent.
- Available on Starter, Pro, and Enterprise plans. Free personal teams continue to use the peer model by default, so individual creators and open-source collaborators still keep items that follow them.
Frequently Asked Questions
Cryptographic timestamping creates immutable proof of data existence and submission timing. Unlike simple timestamps that can be easily forged, cryptographic timestamps use mathematical proofs and blockchain technology to create tamper-evident records that anyone can independently verify.
Truestamp proves three important things, but understanding the difference between them is crucial:
✓ Data Existence: Submitting a hash proves your data exists. You cannot generate a matching hash without having the data.
✓ Submission Timing: We prove when you submitted your data to Truestamp through a cryptographic time window called a submission window. Your item has a submitted-after edge (submitted after one block) and a submitted-before edge (submitted before a later block).
✗ Original Creation Time: We cannot prove when your data was first created, only when you submitted it to us.
Example: If you submit Shakespeare's "To be, or not to be" to Truestamp today, we can prove the phrase exists and that you submitted it between specific timestamps. However, we cannot prove whether it was first written 10 minutes ago, 10 years ago, or 400 years ago, only that it existed before you submitted it.
This distinction is what makes Truestamp a powerful proof-of-submission system while being honest about the limits of what cryptographic timestamping can verify.
Truestamp creates a cryptographic fingerprint (hash) of your data at the moment of submission. This fingerprint is unique to your exact data and is permanently bound to your timestamp. This proves two things:
✓ Data Integrity: If even a single byte of your data changes, the fingerprint will no longer match. Anyone with the original data can recompute the hash and confirm it matches the one recorded by Truestamp.
✓ Timestamp Binding: The timestamp is cryptographically bound to that specific fingerprint. It cannot be transferred to different data. The timestamp proves when that exact data was submitted, not just any data.
✗ What Changed: If the data no longer matches the fingerprint, we can detect that it has changed, but we cannot determine what specifically changed. Whether a single line was added, an existing one modified, or an entirely different document was substituted, the result is the same: the proof fails. It either matches or it does not.
In practice: If you timestamp a contract and later someone presents a modified version, recomputing the hash will produce a different fingerprint that does not match the one on record. This makes any alteration immediately detectable.
Items can be submitted in two ways. In the default external-hash flow, you compute a cryptographic hash of a file on your own device and submit only that hash, so the original file never leaves your control. Alternatively, when the data you want to prove IS the claims content itself (a written statement, an invention disclosure, a release note), you submit the claims directly and they become the timestamped data. In both modes, public blockchains only ever receive secure hashes, never the underlying content or metadata, and our complete item redaction mechanism lets you permanently remove all stored claims, hashes, and metadata whenever you choose.
Truestamp operates its own internal blockchain ledger optimized for timestamping, creating new blocks periodically once per minute. This provides immediate verification while maintaining the security and immutability principles of blockchain technology. We cryptographically commit to the Stellar and Bitcoin blockchains for redundancy and public verifiability.
Anyone with a Truestamp commitment proof can independently verify timestamps without needing access to our systems or even an account. We provide verification tools and cryptographic proofs that let anyone confirm the integrity of any timestamped data.
Integration is simple and fast with any HTTP client. We offer a REST API with full OpenAPI documentation, ideal for automation platforms like Zapier and n8n, plus a GraphQL interface. You can also use our web interface for manual timestamping.
Our free tier includes a generous allotment of timestamps with full API access and community support, perfect for getting started. Paid plans offer higher monthly limits, additional team members, custom metadata, and email or priority support. All plans use the same cryptographic security and verification technology.
No, never. Only cryptographic hashes (digital fingerprints) reach public blockchains, never the underlying content. In the default external-hash flow, your original files stay on your own device and only their hash is submitted. In claims-as-source-of-truth mode you submit the claims content itself to Truestamp, but even then only the resulting hash propagates to the public blockchains, and you can redact the content at any time.
Yes. While blockchain records are immutable, Truestamp provides a unique solution for data privacy. You can redact any information you've submitted for an Item while preserving the integrity of the blockchain and your ability to verify data with stored proofs. This allows us to honor right-to-be-forgotten requests while maintaining the cryptographic guarantees that make timestamping valuable.
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