MultiChain

MultiChain  - multichain.com

• Open Platform for BlockChain applications
• Technically a software which can help you setting up private BlockChain quickly
• A Fork/extension of Bitcoin core
• Many extended features which are not available in Bitcoin core
• Permission management
• Data streams transactions
• Native asset transactions
• Mining and Block signatures
• Extended peer-peer handshaking
• & more
•  

Hashes

• It is digest of data or crunched data
• Result of crunching any data into fixed length of alphanumeric string. (one-way method)
• Many algorithms exists example SHA-1, SHA-256, RIPEMD-160
• In Bitcoin, Hash is computed twice and most of the time it is SHA-256
• RIPEMD-160 is used for wallet addresses

MERKLE TREE

• Binary tree of hashes
• Bitcoin uses double SHA-256 hashes
• In case of odd number of nodes in a row, last node's digest taken twice to make it even
•