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Blockchain-based Authentication of Press Releases

Sector: Tertiary sector · Industry: PR and marketing agencies · Organisation: EDF (mit KeeeX); Wiztrust · Maturity level: Concept

The concept of blockchain-based authentication of press releases aims to ensure the credibility of PR content through immutable digital signatures. Without verified implementation data, this use case remains in the conceptual stage without proven results. The theoretical benefits include increased transparency and trust-building in communication between companies and media.

Documentation status

• Project status: Concept
• Evidence: Evidence medium
• Editorial review: Ufuk Avci, 15 April 2026

Description

Blockchain-secured press releases address a growing problem: fake corporate communications can manipulate stock prices and destroy corporate reputation.

The problem: In the digital age, anyone can create and send a professional-looking press release. Several cases of fake PR releases have influenced stock market prices (pump-and-dump fraud). Blockchain solution: The PR department anchors each press release with a cryptographic hash on-chain before publication; each PR includes a QR code leading to blockchain verification; journalists check by scanning: Does the hash match? Is the release signed by the official company key? Timing: The blockchain timestamp also proves when the release was published — relevant for insider trading investigations.

Perspectives

B2B — organisations perspective

PR agencies and corporate communications can secure press releases with blockchain timestamps — journalists can instantly verify authenticity via QR code, making fake PR releases immediately identifiable.

B2C — consumers perspective

End consumers could indirectly benefit from higher quality and credibility in media reporting. However, the direct impact on consumers would be minimal.

Employees perspective

PR staff would need to develop new technical skills in handling blockchain systems and expand their workflows with additional authentication steps. Journalists could benefit from simplified verification processes.

Benefits

General

• Theoretical increase in the credibility of corporate information through immutable blockchain entries.
• Potential reduction of disinformation and fake press releases in the media sector.
• Possible automation of authentication processes through smart contract technology.

B2B — organisations

• Companies could differentiate themselves from competitors through demonstrably authentic communication.

Employees

• PR professionals could benefit from automated verification processes and reduced manual checks.

Challenges

General

• The lack of industry-wide standardisation and acceptance represents the biggest hurdle for successful implementation.
• Integration into existing content management systems and media workflows requires significant technical and organisational adjustments.

B2B — organisations

• Companies would need to make significant investments in new technologies and training without proven return on investment.

Employees

• Employees require extensive training in blockchain technologies and must learn more complex workflows.

Technology foundation

A public blockchain like Ethereum would theoretically act as a decentralised database where each press release is assigned an immutable digital fingerprint. Smart contracts could automatically verify the authenticity and origin of content without the need for a central authority.

Tags

Authentication, Transparency, Smart Contract, Media, Trust

Sources

1. EDF: Trials a certification process for its press releases to guarantee their authenticity — digitale Signatur, Blockchain-Verankerung, Prüfseite für Journalisten (Technologie: KeeeX)
2. Wiztrust: How blockchain can improve security and transparency in PR communications — SHA-256-Hash, Zeitstempel on-chain, öffentlicher Checker