MDS Mexico now relying on blockchain for COVID test results


The Mexican medical firm MDS Mexico will use blockchain technology in order to verify COVID-19 test results.

MDS Mexico has now launched a platform that will allow people to access rapid test results in real-time. The answer to the test will be delivered physically. But it will also be available to be scanned through a QR code. Patients’ vaccination history can be accessed too through MDS Mexico’s blockchain.


“To avoid the falsification of negative results, we began to certify the SARS-CoV-2 detection tests with blockchain technology and cryptographic signature, which protects the information in a unique, immutable, and unalterable QR Code that can be verified worldwide.”

But the Mexican firm isn’t the first one to opt for blockchain technology in order to avoid the falsification of COVID passports.

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Back in July, the San Marino General Council signed the Decree-Law no. 109. 

The new technology will allow the vaccinated citizens of San Marino to move freely in its territory. The launch of these passports wouldn’t have been possible without the collaboration of DNV. The Norwegian company will provide digital assurance over the project.

“The San Marino Digital Covid Certificate is an important tool that aligns the Republic with the technological standards used by the European Union, assuring total interoperability while also adding a ‘universal’ certification method based on blockchain technology.”

The system uses non-fungible tokens (NFTs) and QR codes. They can be scanned to certify veracity by connecting to an NFT on the VeChainThor public blockchain. The passport also stores data from test results and infections from the past among the vaccination certificates. They are issued upon request from San Marino health authorities.

The passport contains two different QR codes. The first one can be scanned by authorities of the state and complies with the EU standards. The second one can be verified by anyone outside the European Union through an application where the blockchain-based eNFT certificate confirms its authenticity.

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