The initiative seeks to generate auditable proof of attendance for internal compliance processes. The records would be available for verification by Petrobras and authorized third parties. The Cardano Foundation reported this February 23 that the oil company Petrobras will implement a solution based on the Cardano network to register and verify attendance at its mandatory training programs. According to the statement, the initiative seeks generate immutable and auditable proof of attendance to support internal regulatory compliance and governance processes. According to the entity, the system will use cards NFC linked to the Cardano network. For example, every time an employee logs in or out of a session using these cards, the event will be cryptographically signed and recorded on the chain as verifiable and immutable data.” The system not only records attendance, but also entry and exit times. This way you can verify if the employee stayed for the entire session or if he only marked his presence at the beginning. However, this level of detail could also open debate on a stricter or invasive control by companies on the time and behavior of their workers.
The stated objective: verify information in a decentralized and auditable way
The oil company, according to the announcement, is seeking replace manual paper records and disconnected systemswhich, they claim, can generate disputes, errors or difficulties during audits. The solution would allow Petrobras and authorized third parties to verify the records without depending exclusively on a centralized database. Marcelo AF Curi, blockchain solutions architect at Petrobras, stated in the statement:
There is no reliable compliance without verifiable data. Cardano’s public blockchain allowed us to set a new standard for transparency and accountability through Proof of Attendance. Marcelo AF Curi, blockchain solutions architect at Petrobras.
The announcement does not detail the exact scope of the deployment, the number of employees involved, or the implementation costs. The information released by the Cardano Foundation focuses on presenting the case as a business application of its public infrastructure for audit and compliance processes within a large-scale energy company. The statement indicates that Petrobras chose Cardano for its «low costs» of operating the network. At the time of writing, the average transaction fee on the Cardano network is $0.08.”
