Blockchain File Notarization
File notarization and authentication using blockchain technology to ensure integrity, authenticity, and non-repudiation of critical digital documents.
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Blockchain verification in 4 steps
Digital Fingerprint Generation
A unique SHA-256 hash of the file or data is calculated. This cryptographic fingerprint uniquely identifies the content without revealing it.
Blockchain Registration
The hash is grouped into a Merkle tree and anchored to the Ethereum blockchain, creating an immutable record with a verifiable timestamp.
Certificate Issuance
A notarization certificate is generated with the hash, blockchain transaction, timestamp, and a public verification URL.
Independent Verification
Anyone can verify document authenticity by comparing its hash with the blockchain record, without relying on third parties.
Immutable Notarization
Ensure file authenticity and integrity with verifiable and immutable blockchain notarization.
Blockchain Notarization
Record file hashes on Ethereum public blockchain to create immutable and verifiable evidence of existence and timestamp.
Instant Verification
Verify file authenticity and integrity instantly by querying blockchain records without intermediaries.
Electronic Signatures
Sign documents digitally with blockchain validation, meeting legal standards and ensuring non-repudiation.
Chain of Custody
Establish verifiable chain of custody for documents with immutable record of creation, modifications, and access.
Verifiable Certificates
Generate authenticity certificates with QR codes and public blockchain verification URLs.
API Integration
Integrate notarization into existing workflows via REST API to automate authentication processes.
Data integrity guaranteed by blockchain
Acronis Notary Cloud provides cryptographic evidence that a file existed at a specific time and has not been altered since.
- International Legal Validity
Blockchain notarization certificates are accepted as digital evidence in legal proceedings across 40+ jurisdictions.
- Technology Independence
Verification does not depend on Acronis or any third party. Anyone with access to the public blockchain can validate integrity.
Available verification technologies
SHA-256 Cryptographic Hash
Each file produces a unique 256-bit digital fingerprint. Any modification, however small, generates a completely different hash.
Digital Certificate
Verifiable PDF document containing the hash, blockchain transaction, file metadata, and a QR code for quick validation.
Certified Timestamp
RFC 3161 timestamp anchored to the blockchain block, providing cryptographic proof of the exact moment of notarization.
Chain of Custody
Complete record of every notarization, access, and verification of the file, creating an auditable digital chain of custody.
Verifiable Digital Evidence
Acronis Notary Cloud uses Ethereum blockchain to create immutable and publicly verifiable digital evidence.
- Guaranteed Immutability
Public blockchain records cannot be modified, altered, or deleted.
- Independent Verification
Anyone can verify authenticity by querying blockchain without depending on Acronis.
- Precise Timestamp
Exact proof of file existence at specific moment via blockchain timestamp.
Use Cases
Financial Auditing
Notarize financial statements, contracts, and regulatory documents to prove their authenticity to auditors and regulators.
Verifiable Medical Records
Guarantee the integrity of clinical histories, lab results, and informed consents with blockchain proof.
Official Documents
Protect the authenticity of government documents, public tenders, and official records with immutable notarization.
Supply Chain Traceability
Verify product origin and authenticity throughout the entire supply chain with immutable blockchain records.
Contracts and Legal Agreements
Certify contracts, NDAs, and legal documents with blockchain timestamps for irrefutable legal validity.
Intellectual Property Protection
Register and protect original creations, designs, and works with immutable proof of authorship and creation date.
Enterprise Applications
Protect critical documents, contracts, and digital evidence with immutable blockchain authentication.
Legal Protection
Protect contracts, agreements, and legal documents with immutable evidence acceptable in legal proceedings.
Intellectual Property
Establish creation date of works, designs, and innovations for intellectual property protection.
Regulatory Compliance
Meet regulations for document retention and authenticity with auditable blockchain records.
Authenticate with Acronis Notary Cloud
Get immutable blockchain notarization with public verification and guaranteed legal compliance.
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