Petrobras conducts mandatory training programs that support safety, readiness, and regulatory compliance.
Manual attendance systems introduce risk. Paper records and disconnected tools are difficult to verify, easy to dispute, and often capture only a single moment in time rather than sustained participation.
These limitations reduce confidence in attendance data and increase administrative effort during audits and compliance reviews. Public blockchain infrastructure provides a more reliable approach by enabling verifiable, consistent, and auditable attendance records across teams and stakeholders.
A blockchain-based system that delivers immutable, auditable proof of attendance for mandatory training programs
Using NFC cards enabled by TapDano, cryptographic signatures, and the Cardano blockchain, Petrobras records each attendance event as a verifiable data point. Multiple interactions, such as entry and exit, provide a clearer view of participation.
Employees, instructors, and administrators gain transparent access to trusted records without relying on centralized control, supporting compliance, reporting, and long-term auditability.
Demonstrated security and reliability support continuous operation
Future-proof infrastructure supports platform growth without sacrificing performance
Robust architecture protects sensitive data, minimizing the risk of breaches or fraud
Energy-efficient consensus and ethical governance align with sustainability efforts
Turning attendance into verifiable data
How Petrobras brings particiaption records on-chain with Cardano
Participant onboarding
Employees are securely linked to anonymized NFC cards.
Session control
Authorized instructors manage session windows to ensure valid attendance capture.
Cryptographic recording
Each attendance event is signed, validated, and recorded on-chain.
Independent verification
Petrobras and approved third parties can validate records without intermediaries.
Results
Petrobras highlights how Cardano can modernize enterprise compliance and operational trust.
“There is no trustworthy compliance without verifiable data. Cardano’s public blockchain enabled us to establish a new standard of transparency and accountability through Proof of Attendance (PoA).”
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