Bitcoin Forum

Can some please tell me What is blockchain?

Wiki can. Youtube can. Google can ... Don't be lazy to do some search.

EDIT: I'll happily answer you a specific question but the current one is way too wide.

Check out these links
They're literally the first few results from a google search


http://www.goldmansachs.com/our-thinking/pages/blockchain/ (http://www.goldmansachs.com/our-thinking/pages/blockchain/) (really cool website)

https://www.investopedia.com/terms/b/blockchain.asp (https://www.investopedia.com/terms/b/blockchain.asp)

http://www.businessinsider.com/what-is-blockchain-2016-3 (http://www.businessinsider.com/what-is-blockchain-2016-3)

https://www.coindesk.com/information/what-is-blockchain-technology/ (https://www.coindesk.com/information/what-is-blockchain-technology/)

https://blockgeeks.com/guides/what-is-blockchain-technology/ (https://blockgeeks.com/guides/what-is-blockchain-technology/)

https://www.ibm.com/blockchain/what-is-blockchain.html (https://www.ibm.com/blockchain/what-is-blockchain.html)

Thanks for saving one question, the above links were useful.

Google or youtube it.

In broader terms blockchain is the backbone of the bitcoin technology. Blockchain is the mechanism implemented to circulate bitcoins, verify bitcoin transactions, maintain the bitcoins transaction integrity. From the technical point of view block chain is  transaction database shared by all nodes participating in a system based on the Bitcoin protocol. To understand this in deep way you could check bitcoin protocol information. All transactions are maintained in the form of shared ledger. A full copy of a currency's block chain contains every transaction ever executed in the currency. With this information, one can find out how much value belonged to each address at any point in history. Each block is related to previous on via a hash of previous block.
This is like having mechanism of blocks which have continuity and traceability from original block also known as genesis block to the newest block. Each and every transaction on block is irreversible.

If you do not know about this basic information i recommend you read about all thing whose concern bitcoin and all cryptocurrency. Without it you can not start invest

blockchain is a decentralized public distributed ledger of all cryptocurrency transactions, comprised of unchangable, digitally recorded data in packages called blocks.

These digitally recorded blocks of data is stored in a linear chain. Each block in the chain contains data (e.g. bitcoin transaction), is cryptographically hashed. The blocks of hashed data draw upon the previous block (which came before it) in the chain, ensuring all data in the overall blockchain has not been tampered with and remains unchanged.

it allows market participants to keep track of digital currency transactions without central recordkeeping.

Here's a short, non-technial video. It's old, but still adequate:

https://youtu.be/1ycJfp6-6Is

Blockchain is a database or a ledger that maintains a continuously growing list of data records or transactions.

Thank you for the information guys! Reading your replies helped me a lot about blockchain as I have been also wondering what it is all about and how does it work.

The blockchain is an incorruptible digital ledger of economic transactions that can be programmed to record not just financial transactions but virtually everything of value
you can read more info on : https://blockgeeks.com/guides/what-is-blockchain-technology/

OMG ez question, google , wiki ,yotube .. so many answer for your question, just study more  :-[

Blockchain is the world's leading software platform for digital assets. Offering the largest production block chain platform in the world, we are using new technology to build a radically better financial system. ::)

Global online database that anyone with internet connection can use. But that doesn't belongs to anyone.