Do me a favor, tell me really clearly and slowly what exactly a blockchain is?

[Casdinyard]

If you had fool your boss then I'm confident that you can think how to get through this and Google won't hurt anyway, does it?
And even if you gather some info here it wouldn't be enough and it will surely reflect on how you write and explain your article. So without thinking it many times, tell your boss the truth and who knows, he'll forgive you for telling the truth and give you another chance.

Wish you luck for your writing.

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[stompix]

I cheated my way thru in a job interview, for the role of the content writer of exchange,

Isn't this ironic?

We are hiring! Looking for community managers to cover 24 hours for TWO groups - English and Chinese - for a Cryptocurrency Exchange in HK.

So from hiring, you went to be hired? 

Other than that you were working for an exchange, you've spent almost two years on this forum and you have no idea what a blockchain is?
Nothing here will be able to explain that to you in a way it is going to help you write content, that if your boss wants content that is worth more than the one created for 5$ on fiverr.

Seriously, do your won research starting from Wikipedia to go through all the forum posts, blogs, news articles, and research papers sources linked there, otherwise, you won't be able to come with more than two lines of text.

A simple explanation here won't get you more than a paragraph and an early unemployment ticket.

[Aying]

that is a common question that crypto users should understand, Blockchain is a system of recording transactions in many databases that are widespread on many computers, With this decentralized transaction record, it is almost impossible to change unilaterally, without changing the majority of all databases.

With the transparency of blockchain everyone had interest and huge company and now one of the big country look forward to use blockchain as their system. even hospital can use blockchain for their records to easily found and not easily to lost even even though it has been stored for a long time. blockchain system is really awesome for long run. with that technology we can improve even more and there's a lot more to use.

[Bitcoin Seller]

I cheated my way thru in a job interview, for the role of the content writer of exchange, now my boss asks me to write about blockchain but I know nothing about it. Could you guys just give me a basic rundown of.... *Things?*. Anything and everything you feel would be nice to know here

Simplified, it can be represented as a large distributed database, which reflects the movement of funds or information from one account to another. This database is stored on millions of computers that belong to different owners around the world. Its main advantage is that it has a decentralized nature.

That is, the "death" of one or more computers on the network does not lead to a fatal result since the data remains on other computers.

[Artemis3]

I cheated my way thru in a job interview, for the role of the content writer of exchange, now my boss asks me to write about blockchain but I know nothing about it. Could you guys just give me a basic rundown of.... *Things?*. Anything and everything you feel would be nice to know here

It is a kind of decentralized database. Because it runs in several (redundant) internet nodes, it always stays online (in "the cloud"). Also, each data entry has a crypto algorithm securing it against the previous one, which means you cannot alter the earlier ones anymore without breaking everything, this gives it authenticity, as long as there are several nodes physically separate so that any attempts to defeat this becomes too costly to carry out.

A blockchain alone isn't good enough if it isn't decentralized enough, you have to have several nodes worldwide or it looses its main advantage over more traditional databases.

[Darooghe]

Blockchain is a distributed database existing on multiple computers at the same time. It is constantly growing as new sets of recordings or blocks, are added to it. Each block contains a timestamp and a link to the previous block, so they form a chain. The essential thing about a blockchain is that it records any transaction among parties, so it can be conceived as a distributed ledger. Once recorded the data cannot be modified or replaced, so it’s immutable and verifiable. Also, a blockchain can be programmed to automatically carry out transactions using smart contracts technology.

If you want more basic information i would suggest to read the original bitcoin whitepaper from Satoshi. you can download it from https://bitcoin.org/bitcoin.pdf

[chaoscoinz]

I cheated my way thru in a job interview, for the role of the content writer of exchange, now my boss asks me to write about blockchain but I know nothing about it. Could you guys just give me a basic rundown of.... *Things?*. Anything and everything you feel would be nice to know here

  The Blockchain is quite simple to understand and I hope this rough explanation takes some of the mysterium out of it. The Bitcoin Blockchain is a decentralized transparent public ledger.
    The blocks are records of time stamped transactions on the network. Each block contains cryptographic hashes of the previous block, making altering the ledger null and void.

[franky1]

very simply, because each blockchain has different rules

a blockchain is a batch of data where the identifer is a hash of that data.
this solidifies the batch into a block of data whereby if any data in the block is changed, the identifier changes.
this identifier is then put into the next block with the next blocks new data. thus chaining the blocks together

and edits of the first block changes the identifier which then obviously changes the content of the next block as the identifiers wont be the same which then has a easy to spot check mechanism for edits, while also making it harder to edit earlier blocks when more and more blocks are added as you then have to re hash each block there after.

a blockchain block identifier is not fixed to be sha256 hashing, not fixed to using PoW mining, and the contents are not fixed to be transactional/financial. each and any blockchain can be designed to do different things