• Prof.Shelke S.K.
• Bhor Priyanka S.
• Labade Rutuja K.
• Shitole Poonam B.
• Yewale Pratiksha S.

The number of persons who are in need of blood are increasing in large number day by day. In order to help people who are in need of blood, Online Blood Bank can be used effectively for getting the details of blood donors having the same blood group and within the same city. With the help of Online Blood Bank people who are having the thought of donating blood gets registered in Online Blood Bank giving his total details.Online Blood Bank site is available to everyone easily. A person who likes to donate blood gives his entire details i.e., fill in the registration form and can create a username with a password by which he can modify his details if at all there are any changes in his information given before. site also helps people who are in need of blood by giving the details of the donors by searching, if at all there are no donors having the same group and within their own city they will be given the addresses with phone numbers of some contact persons in major cities who represent a club or an organization with free of cost. If at all the people find any difficulty in getting blood from the contact persons we will give them a Mobile link i.e., India’s Largest Paging Service number through which they can give the message on every ones pagers with the blood group and city they are living in, such that the donors who view the messages in their pagers having the same blood group and the in the same city or any other city, he contacts the person on phone who are in need of a blood. Such that the person gets help from us which saves his life. My contribution work is provide security using block chain Technology.

Block Chain, bit coin, blood bank, online system, Security.

"Online Blood Bank System Using Blockchain Technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.647-650, June 2019, Available :http://www.jetir.org/papers/JETIR1907P99.pdf

"Online Blood Bank System Using Blockchain Technology", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp647-650, June 2019, Available at : http://www.jetir.org/papers/JETIR1907P99.pdf