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.
Using NFC cards, 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.
How Petrobras brings particiaption records on-chain with Cardano
Employees are securely linked to anonymized NFC cards.
Authorized instructors manage session windows to ensure valid attendance capture.
Each attendance event is signed, validated, and recorded on-chain.
Petrobras and approved third parties can validate records without intermediaries.
Petrobras highlights how Cardano can modernize enterprise compliance and operational trust.
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