Page 210 - Big Data Analytics for Intelligent Healthcare Management

8.2 HEALTHCARE BIG DATA AND BLOCKCHAIN OVERVIEW 203

1384
23 million 35%
Cryptocurrencies
Blockchain wallet user Money transfer cost can be reduced
Blockchain 20 bn USD
20000 USD
Banking sector can save
Highest bitcoin market price
44.02 TWh
Annual electricy consumption 6 bn USD
3 bn USD
Global investment in blockchain
Banking and financial sectors investment
3 bn USD
Banking and financial sectors investment
FIG. 8.5
Market summary of blockchain technology use.

Transaction 1 Transaction 2 Transaction 3 Transaction 4

Block Block Block Block
1 2 3 4

Header
Merkle tree
Block version Time stamp
root hash
Parent block Target
Nonce
hash threshold

Transaction counter
Number of transactions in the block

Transactions
Data Data

Block

FIG. 8.6
Architecture of blockchain.

In December 2017, it was reported about the blockchain market that if the market size of blockchain
grows at a rate of 79.6% (CAGR) then it is expected to grow from USD 411.5 million (2017) to USD
7683.7 million (2022) [31]. In the beginning, Bitcoin was widely regarded as one of the important ap-
plications of blockchain technology [32]. However, with more advanced technical developments, that
technology can be applied to other fields [33, 34]. Most organizations can get the same benefits of