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 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.
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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