Medicalchain uses blockchain technology to securely store health records and maintain a single version of the truth. The different organizations such as doctors, hospitals, laboratories, pharmacists and health insurers can request permission to access a patient’s record to serve their purpose and record transactions on the distributed ledger. Medicalchain provides solutions to today’s health record problems. The platform is built to securely store and share electronic health records. By digitizing health records and empowering users we can leverage countless industry synergies. Medicalchain is building a platform for secure storage and utilization of electronic health records on the blockchain. The company is also building a telemedicine platform to allow users to directly connect with healthcare professionals, share their records and get consultations, second opinions, online through a secure channel.The company was originally founded in February 2016 to provide a software solution inside hospitals. The solution is known as ‘Discharge Summary’ and it uses a workflow tool to accurately write an assessment of a patient as they are being discharged from surgery or a long hospital visit. The software is currently being used by hospitals in UK and the team decided to extend this project and go further with Medicalchain. Medicalchain wants people to have access to their health records everywhere. Today, you can travel far and wide and you will have access to your phone, contacts, photos, files, bank accounts but not your health records - probably the most important and life saving information you need. In most developed countries around the world you, as a patient, have a legal right to request your records. Medicalchain is providing you with a platform to do that. But more importantly, Medicalchain wants its users to be able to use it immediately by communicating and sharing (on a time limited basis) with other doctors. The bigger vision is to allow pharmaceutical, insurance and other healthcare organisations and stakeholders to be able to interact with health records on patients' terms. Medicalchain believes that health records should be a part of everyone’s life and not just referred to when someone is ill.
Tezos is a coin created by a former Morgan Stanley analyst, Arthur Breitman. It is a smart contract platform which is does not involve in mining Tezos coins. It is a coin that promotes themselves on major ideas of self-amendment and on-chain governance. It is an Ethereum-like blockchain that hosts smart contracts. It allows the community to vote and improve its flaws. Any token holder may delegate their voting rights to others in the network. The coin uses a generic network shell which allow different transaction and consensus protocols that a blockchain needs to be compatible. The source code is implemented on OCaml which is a fast, flexible and functional programming language which should suit an ambitious project and its technical requirements. Tezos’ proof-of-stake consensus algorithm is different from the delegated proof-of-stake (dPOS) where they go by the name liquid proof-of-stake. This liquid proof-of-stake that Tezos uses focus in filling the gap between both security and decentralization but still being able to take advantage of the benefits that delegated proof-of-stake offers. The staking process in Tezos is called “baking”. In this blockchain, bakers who make deposits will be rewarded for signing up and publishing blocks. However, if a baker commits any bad behavior the deposits will be forfeited. Baking & Endorsing Baking is what Tezos refers to as the action of signing and publishing a new block in the chain. Bakers need at least 10,000 XTZ to qualify as a delegate, and having additional delegated stake increases their chances of being selected as a Baker or Endorser. At the beginning of each cycle (4096 blocks), the Bakers for each block are randomly selected and published. Bakers earn a block reward of 16 XTZ for baking a block. In addition to the Baker, 32 Endorsers are randomly selected to verify the last block that was baked. Endorsers receive 2 XTZ for each block they endorse. Block Rewards & Inflation Block rewards are funded by protocol defined inflation. Rewards are calibrated so that the number of XTZ tokens grows at roughly 5.5% per year. If 100% of Tezos tokens are delegated, the annualized yield will be 5.5%. Currently, 38% of Tezos tokens have been delegated, including the 10% owned by the Tezos Foundation, so the annualized yield is currently 14%. To ensure Bakers and Endorsers act honestly, they are required to post a security deposit for each block they Bake or Endorse. They forfeit this deposit in the event of malicious activity, such as double baking or double endorsing a block. In 2018, Tezos successfully launched their main network after delaying the launch due to corporate governance disputes. The Tezos foundation planned to transition the network to a mainnet, or a more complete version. The foundation has also raised $232 million in July 2017 to build the network and issue a new type of cryptocurrency to its backers in one of the largest- ever initial coin offerings. The founders have also made it clear in their blog that the network is using a new blockchain technology hence unexpected issues may still occur affecting the network. Check out CoinBureau for the complete review of Tezos.