Victoria Cleland provides details on polymer banknotes

Victoria, first, can you tell us what you mean by polymer banknotes? So, polymer banknotes are used in over 20 different countries at the moment. Polymer is a material, what we call a “substrate”, that the notes are printed on and it starts life as a very thin film. Then that’s opacified by putting ink on it, usually a white ink, and it’s using that ink that we can create…

Digital Signatures

Digital Signatures

The point of public key encryption is that the public key componentis really public.That is, any user can send his or her public key to any other user orjust broadcast it to the world.Although this approach is very convenient, it has a major weakness.That is, anyone can forge such a public announcement.Some user could pretend to be Bob, and send a public key to another usersuch as Alice, and tell…

Digital Signatures

The point of public key encryption is that the public key componentis really public.That is, any user can send his or her public key to any other user orjust broadcast it to the world.Although this approach is very convenient, it has a major weakness.That is, anyone can forge such a public announcement.Some user could pretend to be Bob, and send a public key to another usersuch as Alice, and tell…

How to generate bitcoin address from scratch in python

How to generate bitcoin address from scratch in python

hello,today we are going to mention transformation of public key to bitcoin addresspublic key is actually a point on an elliptic cuve bitcoin usesand it has x and y coordinate as seenand this is a valid point on the elliptic curve bitcoin usesaddress transformation requires to convert public key to hexadecimal formatin pythonhex command serves this duty0 index value is its x coordinateand we can convert it to hexadecimal format…

6 Things You Didn’t Know About a Blockchain

6 Things You Didn’t Know About a Blockchain

Hey guys, welcome back to Crypto Coin Consultants!Today we’ll be talking about the underlying technology behind not only Bitcoin, but behindevery single cryptocurrency out there.It’s called blockchain technology, and it’s absolutely revolutionary!Before we get started, here’s a quick trivia question.Ethereum founder Vitalik Buterin (whose blockchain holds the second-largest cryptocurrency marketcap behind Bitcoin) has which of the following unique talents: he can run 50 miles nonstop,solve a rubik’s cube in under…

4 Things You Didn’t Know About Airdrops

4 Things You Didn’t Know About Airdrops

Hey guys, I’m Angelo and welcome back to Crypto Coin Consultants.Today we’ll be discussing airdrops.But first, answer this quiz question:How many Stellar Lumens coins were allocated to be given away for free during their firstairdrop?19 hundred, 19 thousand, 19 million, or 19 billion?Let us know in the comments section below & stay tuned till the end of this video tofind out the answer.4.What is an airdrop?Airdrops are just another term…

Bitcoin vs Davos, Reverse Crypto IPOs, McAfee Flees the IRS | Hodler’s Digest

Bitcoin vs Davos, Reverse Crypto IPOs, McAfee Flees the IRS | Hodler’s Digest

This week, global elites met at the World Economic Forum in Davos where discussion oncrypto featured the usual FUD.Two high profile guests were absent from Davos, namely the U.S president and the U.K prime minister:Donald Trump because of the government shutdown, and Theresa May because of Brexit.On the surface, Brexit and funding a border fence may seem unrelated, but if you lookunderneath, they are rooted in growing discontent with the…