Digital Medical Certificate, AltHash Health Blockchain
With the Pandemic much falsified medical certificate has been spreading. The blockchain-based database provides authenticity, immutability, and security of Data. Hence, it is but logical that medical certificates be stored in the blockchain. It also maintains Data Privacy. Last 2018-19 we introduced this project to the Philippines.
What is the main purpose of blockchain?
The goal of blockchain is to allow digital information to be recorded and distributed, but not edited. In this way, a blockchain is the foundation for immutable ledgers, or records of transactions that cannot be altered, deleted, or destroyed.
Blockchain is an emerging technology being applied for creating innovative solutions in various sectors, including healthcare. A Blockchain network is used in the healthcare system to preserve and exchange patient data through hospitals, diagnostic laboratories, pharmacy firms, and physicians.
Is there a healthcare blockchain?
At this time, the most common use cases of blockchain in healthcare leverage smart contracts capabilities for medical supply chain, health-credential and vaccination validation, provider credentialing, patient data security, and life sciences clinical study-related data.
The problem in Medical Certificate Issuance experienced in the Philippines
One of the challenges in the issuance of medical certificates is the falsification of the document. Doctors most of the time receive inquiries and complaints from health insurance companies or the human resource departments on the certificates submitted by the sick employee. Often times the company doctor or nurse be it from HR/School? or insurance would have to confirm or call the issuing physician on the diagnosis, medication, or recommendation written in the medical document. This oftentimes causes doubt about the credibility of the Doctor. Worst case scenario is when a crime is committed by manufacturing fake medical certificates using an innocent doctor's name and his medical license. This recently happened in Quezon City.
An article by CNN about the problem
""Police raid print shop producing fake medical certificates of COVID-19 results( Metro Manila (CNN Philippines, July 23) Police on Thursday raided a printing shop in Quezon City for allegedly producing fake medical certificates of COVID-19 results. The Quezon City Criminal Investigation and Detection Group (CIDG) organized an entrapment operation in the afternoon at Brgy. Pasong Putik after a social media post went viral exposing the scheme. Authorities arrested two employees and confiscated the printers, computers, and other hardware as evidence." Full Article. Read More....
IT IS A CRIME
Section 1. Article 174 of Section 5, Chapter 1, Title IV of Act No. 3815 FALSIFICATION OF MEDICAL CERTIFICATES IS A CRIME AND IS PUNISHABLE BY LAW Penalty: The penalties of [arresto mayor] PRISIONCORRECCIONAL in its maximum period to [prision correccional] PRISION MAYOR in its minimum period and a fine not to exceed [1,000] TWO HUNDRED THOUSAND PESOS (P200,OOO.OO) WITH SUBSIDIARY IMPRISONMENT This is where we come in, Digital Medical Certificate
A secure, private and confidential way of creating Medical Certificate by a Medical Doctor. It gives practicing physicians the assurance that their issued certificates, were not corrupted, falsified. Likewise for the Human resource department who receives the medical certificate that the document is true and authentic
Why is Blockchain based Medical Certificate Secure?
Key things: a. Data is cryptographically stored using SHA 256 or Secure Hash Algorthm "SHA-256 stands for Secure Hash Algorithm 256-bit and it's used for cryptographic security. Cryptographic hash algorithms produce irreversible and unique hashes. The larger the number of possible hashes, the smaller the chance that two values will create the same hash. It is developed by NSA"
Hashing is the process of scrambling raw information to the extent that it cannot reproduce it back to its original form. It takes a piece of information and passes it through a function that performs mathematical operations on the plaintext. This function is called the hash function, and the output is called the hash value/digest.
b. the cryptographic data can be decrypted using a private and public key Ecnycryption,
" Only the owner of the private key can encrypt data so that the public key decrypts it; meanwhile, anyone can encrypt data with the public key, but only the owner of the private key can decrypt it. Therefore, anyone can send data securely to the private key owner."
c. The Encrypted Data is stored in a distributed ledger an independent, autonomous node of computers.
For a Criminal to corrupt the Data stored in the MEdical Certificate done by the private physician he has to:
a. decrypt the SHA 256 " As of 2021 technology, the chance of solving a hash with SHA256 algorithm, that is, converting it to the main input, is very very low possibility" b. access the private key of the issuing Doctor " Hackers can infiltrate wallets and steal bitcoins if they know a user's private key." c. hack all the autonomous, anonymous, distributed nodes (all over the globe) which participated in the blockchain network. not including the consensus mechanism of verification on each block. "A blockchain's decentralized nature means that its network is distributed across multiple computers known as nodes. This eliminates a single point of failure. In other words, there is no way to “cut the head off the snake” — because there isn't any head." WATCH DEMO VIDEO ON DAPP (DECENTRALIZED APPLICATION) DIGITAL MEDICAL CERTIFICATE
Blockchain used cases in healthcare to preserve the integrity of the document, and integrity of Physicians and save a lot of money for Companies and insurance paying for fake/falsified documents.
Only a licensed Medical Doctor can have access to and create the Certification. AltHash follows strict background checks to confirm Physicians' application to use the AltHash Health Blockchain
Dr. vincent Rey Vicente, MD is a practicing medical professional, a senior faculty of AltHash University. At present he is also the Business Developement Director of theInternationcouncil of Registered Blockchain Professionals (ICORBP). He introduced Digital Medical Certificate to private medical practices in Davao City, Philippines in addition to the Digital Birth Certificate.
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