Do Blockchain will replace some of the world standards like the QR code and bar-codes?

Today was having lunch with some friends and came out the fashionable technology topic that is Blockchain, and I realized that we are bombarded with so much info that it is not clear to many of us about the use that will be given to this technology as we say in Mexico in a "Grounded way" and I will try in this post to explain as clear as possible how Blockchain works in a very basic way knowing that the process has a quite sophisticated complexity in the technological field and I’ll try to give you specific data of the tangible uses of it.

I’ll try to make a very simple analogy using as an example Bitcoin that is the essence of what is now Blockchain, imagine that you have 10 Bitcoins (Crypto-currencies) and want to make the transfer of one single Bitcoin to your brother or sister right now; so as soon as you create the transaction it create a “Block” which is the portion that registers the transaction data of that crypto-currency (Bitcoin) needs to generate to advance this Bitcoin from your ownership to your brother / Sister ownership and thus successively every time this Bitcoin change "from hand to hand" a new block with its associated chain is generated and everything happens since a "Miner" created that specific Bitcoin and had its first gestation as a crypto-currency and from there and forward all the reference data are going to be including into blocks and chains with the records of how many “hands” and how many people passes the same Bitcoin (there is no exist two identical bitcoins), and the interesting thing of all this process is that all the people involved in the transaction including by who, when, where this Bitcoin was created has an associated "Unique and non-falsify receipt” (Chain) that are generated in a linear and chronological order from when it was owned for the first time, from whom received the crypto-currency and to whom it is deposited, and all people have a "Unique and non-falsify receipt" which guarantees that the cryptography is real and maintains its value and also there is a record of the value at each moment that had its different owners.

It should be mentioned that Blockchain has several uses, however, it gives more weight to what the Fintech guys are doing with Bitcoin, but the idea and concept is guarantee of non-falsify transactions of any kind.

I will not go into detail on how the first Bitcoins are generated and if these might come to disappear or get lost (as it already happened before) but going back to the main question if this technology will ban or remove the bar-code and some other international standards my humble opinion is that there are different things and complement each other for a much broader solution using technology, on one hand we have Blockchain that are giving legal and financial certainty to the transaction and bar code and QR Codes are improving supply chain automation that avoids errors and costs in identifying physical products.

I hope you enjoyed the reading as I did with the explanation :)

Best Regards

Guillermo Díaz