# 3.7 HBN (HealthCare Blockchain Network)

<figure><img src="/files/sf3icEumFfSBp3wzJ93r" alt=""><figcaption></figcaption></figure>

Size and standards of data that each medical institute holds differ and are stored individually and separately. Although the size of clinical records saved in electronic document formats is small at about megabyte level, size of medical images can range in the level of tens to hundreds of megabytes.&#x20;

In the case of genome data, the size will be at the level of gigabyte at the minimum although it will differ depending on the stage of data processing. Since there would be enormous burden to store all these data in the blockchain, data of patients are transmitted immediately to the LEMONCHAIN ecosystem by linking with individual medical institute by means of node. Each data is encoded by using private key before storing only the hash value of this data in the blockchain for connection to private node.


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