Crypto Decoded: How Digital Money Works | Full Documentary | NOVA | PBS
dnavKPl5f9I • 2022-11-10
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Kind: captions Language: en foreign [Music] currencies with names like Bitcoin ethereum and Dogecoin today there are thousands of them but what are they and how do they work you can't hold it often you can't spend it we're looking at something that is 20 a working technology and eighty percent a utopian vision of how Society could be are they a flash in the pan the future of crypto is at 99 of projects will be rendered useless or a new technology that's here to stay it's not going to vanish what it's used for is yet to be fully determined the art world has been turned upside down again you have built a functional replacement for a lot of what a credit card company or a bank does decoding crypto right now on Nova [Music] Revolution game changer I'm a millionaire experiment doomed to fail the future of crypto is at 99 of projects will be rendered useless the Carnage and the crypto World continue today it is impossible to understand where this is going there's no question cryptocurrency is having a moment Bitcoin is a new kind of money nfts are sweeping the art world cryptocurrency is a trillion dollar market it cannot be ignored what is crypto anyway you can't hold it often you can't spend it technologically it's incredibly interesting cryptocurrency kiosks are appearing Nationwide crypto is a global phenomenon adopted by countries embraced by refugees and used by millions around the globe most people have heard of Bitcoin the most well known among thousands of cryptocurrencies but find it confusing everything you don't understand about money combined with everything you don't understand about computers it's talked about all the time by people who claim to be in the know I'm getting into crypto with FTX you in investors and speculators have both made and lost great deals of money but it's not at all just about money it has a lot of different applications many of which have very little to do with financial services some warm of possible perils there's a lot of hucksters out there who are just trying to sell their snake oil fraudsters are buying and selling millions of dollars in illegal digital assets While others claim crypto is a groundbreaking technology with nearly unlimited uses the Constitution of the United States is going up on auction sold 41 billion dollars whether it's a movie or it's our housing contracts uh and market for climate action where did it come from this is one of the most significant Technologies to have been created by someone who is still wholly anonymous how does it work it was just like whoa that's amazing is it just hype crypto has been embraced by the mainstream but not in a way that achieves any of its original goals or is it revolutionizing money and more it's a safe and easy way to get into crypto yeah I don't think so [Music] real estate investor Vernon J is trying to use a new kind of money to reinvigorate East New York Brooklyn he thinks crypto could be the key to expanding ownership in neighborhoods like this one this may not be what most people think of when they hear cryptocurrency but some people believe ideas like his represent crypto's true potential what's going on brother good yeah this is it this is it let's just check it out let's do it Vernon and his business partner computer programmer Akil Ash planned to reclaim properties like this vacant lot to build affordable housing owned and managed by people who want to improve the neighborhood we hope to get community members to be able to invest with us where people from the community can own fractions of the property can gain access to the income from that property forever each token is worth a hundred dollars rather than go to a bank for a loan Vernon is going to use a new Financial technology to Mint something called a digital token which can be bought and sold in a digital Marketplace so these are the equity coin investors so these are their wallet addresses where they got sent their Equity coin to Vernon's project known as Equity coin is a risky experiment and success is far from assured if it succeeds the community may benefit you'll be able to restore this it doesn't need if it fails he and his investors could lose real money today there are thousands of cryptocurrencies launched by entrepreneurs coders even artists among them are passionate Advocates who believe their projects are evidence that crypto has the potential to address a wide range of society's problems but that potential has yet to be realized when we look at a technology like cryptocurrency we're looking at something that is 20 a working technology and eighty percent a utopian vision of how Society could be the technology is several steps ahead of where the regulatory infrastructure is many most or all are doomed to fail there have been accusations that all crypto is a Ponzi scheme what I would say is that there are tokens and projects where the token will ultimately wind up having no value I do think however there is a period of time in any Innovation where you just have to figure it out and you're going to have to throw a lot of things at the wall and see what sticks we're in that time right now supporters claim crypto is superior to traditional money but to understand why it's best to start with a deceptively simple question what is money anyway has come in many forms throughout human history and while we are all very familiar with coins and banknotes many other objects have circulated and been used in exchange this is part of the largest historical collection of money in the world located at the Smithsonian museum in Washington DC the value of money exhibit features hundreds of objects representing currency from every inhabited continent spanning more than three thousand years they range from seashells large metal plates clam shells large Stone discs often known as Rey from the island of Yap really anything can be used as money as long as the community agrees to use it and decides on a value money has existed in one form or another for longer than written history but the fact it takes so many forms raises another interesting question how real is any of it all money is collective belief right money that you alone believe is valuable is no more useful to you than a language that only you speak money relies on the ability of large groups of people to arrive at a shared consensus about how much something is worth and that it will be worth that more or less into the future there are some elements of you know is this a good form of money can it be transacted easily can it be transported is it going to be inflated but beyond that it's belief it's belief that it will continue to be valuable to people in the future it's sort of a necessary Fiction it's something that enables us to communicate to have an economy to make basic transactions history reminds us that virtually anything can be used as money as long as enough people believe in its value even in America what functions as money has sometimes been quite fluid in fact for nearly a century before the wide adoption of the dollar people put their faith in local currencies the Constitution gave the federal government the right to coin money to establish a national mint in 1792 but it was silent on what should happen with banknotes so instead each of the states issued Charters to Banks and private businesses enabling them to design and print their own money at whatever denomination and quantity that they wanted and as a result there were over 8 000 different banks and private entities making their own banknotes and you can imagine just how Wild and diverse that was there's no Central Bank or overarching entity telling you you should put your faith in this and you can trust it crypto is only the latest new form of money and as most who've heard of Bitcoin know it's digital but since many of our daily transactions are already electronic and don't involve touching physical currency it's reasonable to ask how is this different we've been paying electronically for a very long time you know you swipe a card one account gets debited another account gets credited we kind of don't really think about what happens under the hood but all of that is still doing fundamentally the same thing it is telling a third party someone who has access to a ledger like your bank that they would like to move the following units on that ledger from your account to somebody else's account today we have come to depend on Banks and credit card companies to keep track of where our money is and manage the flow of digital payments cryptocurrencies may seem no different but there is important distinction they aim to do away with the middlemen like Banks who may decide fairly or unfairly who to loan money to and even governments who control the money supply what if we could remove all of those intermediary players and I could directly give you the amount that I owed you how can we have a ledger system that exists just between us that doesn't need us to rely on an institution to keep track of it for us if you can build a system like this that actually works you have built a functional replacement for a lot of what a credit card company or a bank does foreign it's not the kind of problem that would keep the average person up at night but for some computer scientists and privacy Advocates building a new Financial technology seemed of Paramount importance how often or in what system the thought police plugged in on any individual wire was guesswork it was even conceivable that they watched everybody all the time you had to live did live from habit that became instinct in the assumption that every sound you made was overheard and except in darkness every movement scrutinized Mark Miller was a computer science student in the late 1970s in the wake of Watergate and the Vietnam War trust in the government was low and Miller was one of many for whom George Orwell's classic dystopian novel seemed prophetic we were very terrified of the totalitarian future that 1984 had painted and we really took it on as our responsibility to figure out how to build a system that would be a tool of Liberation not a tool of Oppression universities were experimenting with the first networked computers what had originally been designed as a cold war missile defense system was laying the foundation for what would become today's internet though initially only a handful of computers existed on this national network it was already clear these interconnected machines were going to radically change communication at the same time networked computers could give governments and others new ways to monitor messages and spy on citizens some researchers were intent on developing a new kind of cryptography that would keep Communications secure the history of cryptography for thousands of years is defined by one single problem no matter how you make your code right the key that you use to encrypt the message needs to be the same key as the other person has to decrypt it hear the important work of decoding messages whose information must be carefully guarded and transcribed with perfect accuracy now the problem with that is that if anybody figured out the secret code well then you were kind of out of luck they could Now read all of the messages that you were going to send back and forth this is what happens when the Allies famously cracked the code of the German's Enigma machine in World War II it helped turn the tide of the war that was the fundamental limit to your ability to create secret messages for all of human history until the 1970s when a group of computer scientists make a series of extraordinary breakthroughs the big breakthrough was figuring out how to replace the vulnerable single key system with a novel two-key approach each side holds a pair of mathematically linked Keys essentially a string of characters one shared publicly the other kept private the sender encrypts the message using the recipient's public key the message can only be unscrambled using the recipient's private key the sender can also use their private key to encode a unique digital signature into the message proving that they sent it the thing that's really cool about this is that I don't need to know your secret key no one needs to know your secret key it never leaves your device or your piece of paper or your home it stays completely secret the only thing that leaves is a public key and I can't figure out what your secret key is from your public key as long as everyone's private Keys stay private secret messages are essentially uncrackable and signatures can't be forged the trick lies in how the keys are linked through a type of math problem using large prime numbers which is easy to compute in One Direction but nearly impossible to reverse engineer it's very easy to take a set of factors and see that they multiply to a number it's very very hard to take a large number and figure out what the factors are that divide into it what if required even someone with a super computer you know hundreds or thousands of years to try to break the cryptography and get access to the information that is a revolutionary change in the world up to that point we were all kind of helpless a against efforts by those forces that would Target us and now suddenly mathematics had given us this amazing gift this this tool that we could now use to communicate secretly in a way that even those large forces cannot corrupt a column in Scientific American described the Breakthrough but the actual algorithms remained unpublished in a paper at MIT Miller feared the approach known as public key encryption was so powerful that the government might try to classify it as a military Secret I saw this as a hard fork in the road that was bigger than me and I decided I have to do what I can to make sure that this idea is not suppressed so I went to the MIT campus and I hung around and talked to people until finally I managed to get my hands on a paper copy I went to a variety of coffee shops never made too many copies in any one place and I mailed it from a variety of mailboxes to home and hobbyist computer magazines and clubs all across the country and I also gave copies of the paper to a few select friends of mine telling them if I disappear make sure this gets out I have absolutely no idea and I will never have any idea whether my actions had any influence at all but the cat was out of the bag the paper was eventually published in 1978 and the ideas spread like wildfire the Government tried to keep these algorithms from the public but determined to fight against centralized control programmers put the codes on everything from t-shirts to their own bodies cryptographers were in the unique position especially once people started getting tattoos of this string of characters of being able to say like characters and martial arts movies that their bodies were classified as deadly weapons what you want a public key some coders joined forces working in loose groups to design Technologies including new forms of money that could free people from centralized control we could call them Visionaries we could call them radicals we could also call them weirdos eccentric technologically sophisticated very smart deeply strange people who wanted to change the world through transforming how money worked [Music] they anticipated that there was a coming economy that was going to be built around all of our data the surveillance of our data set very soon we were all going to be living more and more of Our Lives communicating through digital Technologies and a crucial piece of this puzzle that hadn't really ever been fully solved was figuring out how to do money online where will you find a world of ideas for your child for the first time public key encryption made it possible to securely use credit cards and conduct other Private Business online without it online Commerce might never have become a reality but for activist coding groups the fact that Banks and credit card companies kept a ledger of all transactions opened the door for Big Brother the most infamous of these groups was known as The Cypher punks their culture was hey we want to create privacy because we can see where this is going they had the foresight to see that any big Enterprise there are going to be big companies and and Regulators who will try and control it The Cypher punks mostly communicated through a mailing list the hardcore of the cipherpunks look to digital money as a way to not just guarantee privacy but as a way that they could potentially destroy existing governments and States completely it was basically developers creating tools for freedom and one of those tools was digital cash not just digital transactions like the banks were providing but a new kind of money altogether across dozens of new forums there were a number of attempts to design a system of digital cash and then on Halloween 2008 a new name Satoshi Nakamoto appeared enter Bitcoin called by its inventor a peer-to-peer electronic cash system even now no one knows who Satoshi Nakamoto the inventor of Bitcoin is but the paper was revolutionary this is one of the most significant Technologies in recent human history to have been created by someone who is still wholly anonymous who is Satoshi is a question that may never be answered but in actuality that sort of Mystique is kind of what adds to the lore that made Bitcoin really interesting to begin with I think whoever Satoshi is it's amazing that they were able to fit all of what they wanted Bitcoin to be in eight pages satoshi's paper synthesized Decades of work by hundreds of cryptographers and computer scientists into an elegant whole it showed how to create a digital payment system based on a new currency that eliminated Banks at the exact moment the 2008 financial crisis shook the public trust that gave them their power it was a manic Monday in the financial markets the Dow tumbled more than 500 people were like if the world's Financial economy is you know like taking a big hit how do we make ourselves more anti-fragile towards these things in the future what Bitcoin proposed to do what Satoshi proposed to do was produce a kind of digital cash that didn't require those intermediaries instead of transactions going through a web of connected computers owned by Banks and other intermediaries it would go through a web of connected computers owned by the people conducting that transaction [Music] Bitcoins were simply Bits of computer code in a digital Ledger each person would hold their coins in an anonymous digital wallet identified only by its public key the holder of that wallet could only spend those coins by using their private key to sign the transfer and authorize the transaction but the real breakthrough was something called the blockchain a technology that ensured The Ledger hadn't been tampered with and that people hadn't spent the same coin more than once all without needing a bank or other Central authority to keep track the payments would instead be conducted through a decentralized infrastructure of payments that would run on any number of computers there's copies everywhere and all the copies update as you make a change as anyone adds something as anyone does anything everyone's copy updates which means that we all in a sense together witness every single thing that's taking place the blockchain records the precise order of transactions if someone tries to send two people a coin when they only have one one transaction is approved the other denied well how do you trust strangers on the internet that's a hard problem and that's a lot of what blockchains are designed to do is to be able to say we're all collectively anonymously asserting that this copy this record of this sort of database of information is the same and it's accurate and hasn't been tampered with [Music] satoshi's blockchain proposed an ingenious solution every 10 minutes or so a record of every Bitcoin transaction made anywhere in the world during that period is assembled inside a digital block that block is then run through a cryptographic algorithm called a hash essentially a way of converting any piece of information into a short unique identifier like a label that describes the contents of a box but this is no ordinary label if anyone changes the contents of the Box by even the smallest amount then the next time it's run through the hash function the label changes completely making it clear someone has tampered with what's inside imagine a machine that you can put information into let us say Moby Dick all of Moby Dick the entire novel you put it into the machine and it gives you back a little code that code is the summary the expression of all of the data that makes up Moby Dick and now if you put in Moby Dick but you have changed one single word if you have altered a space if you have removed a period the code will be different you're going to be able to tell that something has changed with such a machine you could then take say a transaction me sending you ten dollars you can put it into that machine you're going to get back a little code that corresponds to all of the data about that transaction that code will not be the same if you change anything about that transaction data now you take that code and you add that in to the record of the next transaction linking them all into a single continuous chain of verification each block begins with the previous Block's hash creating an ever-growing chain of blocks the blockchain users from across the network take turns hashing blocks and adding them to the chain the other computers on the network verify the block is hashed correctly and update their copies effectively creating a decentralized ledger that all users agree on thank you that's good Vernon oh okay [Music] today people are using other decentralized systems modeled on satoshi's blockchain to try to move money beyond the control of banks governments and other traditional Gatekeepers okay if I was to give you a thousand dollars what would happen with my thousand dollars so if you put a thousand dollars into let's say a hundred thousand dollar property you have one percent ownership in that asset whatever the income is for that asset you get one percent of that income community property developer Vernon J explains Equity coin to his Aunt Vivian who has lived in East New York Brooklyn for more than half a century we need a light in the Vernon in this new money business is going to be the light Let It Be The Light Let It Be The Beacon that we need to revitalize our community all right all right how's everybody doing tonight well thank you all right Equity coin has attracted Interest online but Vernon also makes his pitch to The Community face to face when we talk about cryptocurrency when we talk about blockchain technology what that does is it actually gives you a chance to remove the intermediaries so those banks that have been declining you you know those organizations that say actually no this is not going to work you have the opportunity to to create this system where people can invest with you without the intermediary because he's dealing with real world properties and needs to hold a deed collect rent and pay taxes the Securities and Exchange Commission regulates Vernon's coins like shares in a traditional company but he thinks crypto offers a more direct connection with investors what I wanted to do was mix in affordable housing with blockchain technology and create a system where we can actually replace the bank with Community yes thank you if Vernon attracts enough interest he'll launch his coin joining thousands of others in a volatile crypto ecosystem where people can get rich or lose everything so this is our time this is our time but all of this raises the question if decentralized blockchains eliminate the middlemen who runs the network why do people even participate in this network why do they gather these transactions and add them to the end of the blockchain and how do we make sure that they're doing that in a secure way satoshi's answer came in the form of an incentive system called mining that rewarded users who added blocks to the Chain by granting them newly minted Bitcoins these miners group transactions from across the network into a block and run it through a hash function like the machine that created the label for Moby Dick in order for everyone's ledger to match only one Miner at a time can add a block to the chain so how does everyone agree on which Miner gets to add the next block satoshi's solution have miners race to solve a cryptographic puzzle a node that wants to add a block to the end of the blockchain actually engages in solving a computationally expensive cryptographic puzzle and so the sole purpose of this cryptographic puzzle is just to show that I've spent a lot of time and energy trying to solve the puzzle that's it the idea is that it needs to be expensive by some resource to compute this puzzle if it's very cheap or very easy or very quick to compute the puzzle then it won't do a good job of securing the network and making sure there's only one blockchain one version of History which is very important this puzzle called proof of work means miners who spend resources in the form of hardware and electricity get to add a block of new transactions and earn Bitcoin starter up Johnny in the early days mining was a cottage industry people built rigs at home expanding the Network and Sharing their setups on social media well it's a little overview of what we got four machines I should clear right at 2 800 a month mining is also how new coins are introduced into the system instead of Banks and governments controlling the money supply it's automatically regulated by the software as more coins are mined the reward decreases and the proof of work puzzle gets harder to solve and requires more energy giant mining Farms exist all over the world using as much power as some countries about 30 percent of the mining done in the world is in America and most of that mining is starting to be done in Texas because they have a lot of energy also a lot of the mining is done where it is cheaper places like Iceland Kazakhstan China was huge in mining for a while and then they banned it with about one percent of the world's electricity going to crypto mining some are pushing to find alternative sources of power what's becoming huge now is hydroelectric energy using water as a way to mine Bitcoin and also we're starting to see more of the solar panels wind energy ironically Bitcoin actually provides a way to think about a standing up different kinds of renewable architecture around energy that wouldn't otherwise necessarily have capacity or the ability to be stood up but others don't buy it particularly when considering the entirety of the Bitcoin mining Enterprise spread around the world there is a tendency to point to in some cases valid but mostly not Renewables as part of the energy consumption of Bitcoin there are people that sort of wave away the seriousness the gravity of that damage that harm that they're causing and I find it immoral we see the construction of a vast machine that might be one of the most purely wasteful machines ever built a system that that burns processor power and coal and generates nothing but Heat and the solutions to deliberately meaningless problems but early on things were very different mining was easy in Bitcoin essentially worthless in the early days there were websites that had Bitcoin faucets which were basically just a site you would go to click on it you know create a wallet and it would enable you to just get free Bitcoins [Music] Satoshi didn't seem interested in making money and in 2011 sent a final email before disappearing for good other early adopters saw the promise of the technology and tried to generate belief in its value once Bitcoin was developed enough to be a kind of largely functioning piece of software it had to actually be used in order to become money so one person on the Bitcoin Message Board said I will pay someone with Bitcoin to order me two pizzas with lots of toppings and someone else on the other side of the country ordered that pizza sent it to him and got paid in Bitcoin he essentially paid about 40 bucks for two pizzas and those 10 000 Bitcoin are well over I believe 200 million now but that transaction had to happen in order to show that hey people do want to pay with this Bitcoin is now up to a hundred and eleven dollars but as more users join the network and the price increased something changed the hottest investment on or off Wall Street are these cryptocurrencies they are soaring they began to see it less as money that is a transactional tool that you would actually use they started to see it instead as a kind of asset despite wild fluctuations bitcoin's value increased over time and other coins emerged on their own blockchains While most chased profits one early Bitcoin user saw a different kind of potential and helped invent what would become one of krypto's most famous uses I'm an artist and I've been an artist for a long long time but I wasn't always I studied philosophy and literature and that was my main kind of Interest in the early 2000s Kevin and Jennifer McCoy were successful digital artists their Works shown by prestigious galleries but unauthorized copies were appearing all over the internet they realized there was no such thing as a digital original that they could actually own and control in a digital environment of course it's always a copy and it proliferates uh you know everywhere and you know and so there is no original but Bitcoin gave Kevin an idea and that System created for the first time an idea of digital scarcity all of a sudden the everyday Norm that you had about digital technology that it's infinitely reproducible that it's everything is just copy and paste that didn't apply in this case if I send you my Bitcoins I don't have them anymore and you have them that's scarcity it's not everywhere it's only somewhere and so I had this realization that if it was possible via Bitcoin to create uh uniqueness around currency then there had to be a way that you could create uniqueness around a digital artwork but I didn't know how I'm really excited about this last pairing Kevin attended a conference where each artist was paired with a tech partner and given 24 hours to develop a new idea they'd present to an audience what we wanted to talk to you about today is this idea we have monetized graphics and how we can put digital artworks in Chains so almost immediately after I was paired up with Kevin McCoy he and I sat down and started sketching out ideas for how could you make an assertion on a blockchain to say that a certain digital work was an original unique item after an all-night coding session a Neil Dash and Kevin announced that they had registered a video on a blockchain it was a segment of a video work that Kevin and Jennifer McCoy had created together and I actually found it mesmerizing and this was our onstage example of taking this file and creating a blockchain based record of that we've created a system that will establish verification and provenance over digital files digital artworks that provenance is a chain of ownership and Neil and Kevin created a record of ownership that would live on the blockchain whoever held the key to access it owned the digital original we did pull together in a couple hours so given that it was something we sort of did over the course of an evening and into a late night uh it was a pretty good first version do you got 20 bucks and we sort of said we'd negotiate a price for it you can pay you in U.S dollars sure all right that's cool with me I have four dollars really it was the first transaction of something that would eventually come to be called a non-fungible token or nft today nfts can act as a digital proof of ownership for things Far Beyond art from tickets to a concert to membership in a club operating like keys that unlock benefits to the owner you can imagine rolling it out into a more platform-oriented thing but back then Kevin's notion that it was possible to own a digital original didn't immediately catch on you know that it's new you know that it's a novel thing you know that it can feel that it's important and nobody cared [Music] Kevin's idea may not have taken off but he wasn't the only one hoping blockchains could go beyond Bitcoin in 2015 a 21 year old coder named vitalik buterin launched ethereum a new blockchain designed to decentralize much more than just money ethereum Community is I think a unique in the crypto space for its diversity like it's not just one Community it's you know there's a lot of different sub communities there's something in it for everyone today ethereum is the largest blockchain in the world running 10 times more transactions than Bitcoin like Bitcoin the blockchain incentivizes users by rewarding miners with the currency in this case ether but the range of what ethereum can do goes beyond a simple monetary transaction we want to have a quick interview with a person who needs no introduction so without further Ado let's welcome vitalik buterin [Applause] ethereum lets users create their own programmable tokens using smart contracts instructions in the form of computer code that execute rules on the blockchain instead of just adding or subtracting money from a ledger these smart contracts make it possible for anyone to Mint a token and embed it with nearly any functionality from tracking music royalties to encoding money with last will and testament directives doing for the blockchain with the iPhone's App Store did for the cell phone today conferences like this one in Amsterdam attract thousands of coders and entrepreneurs so the young people are excited now about blockchain and all the possibilities that blockchain can give and I haven't seen this kind of excitement since the time of internet was born because anyone on the internet can see and inspect The Ledger proponents claim blockchains like ethereum can make transactions more transparent and because they eliminate the middlemen more efficient there's an idealistic quality to many of the hopes surrounding the technology everything which we wanted to preserve for eternity can and should be on the blockchain whether it's a movie or it's our housing contracts or the way we interact with the let's say Uber or rent rent a car so right now we have a paper will it could be a lot of drama a lot of debates between family members when you pass away well at least if you actually do that on chain on the blockchain actually you can actually get a say and you know that it's going to be guaranteed to go to those people when you pass we are enabling individuals and organizations to access a market for climate action in an efficient low-cost Manner and by bringing these existing uh certificates onto a blockchain um we unlock uh much greater efficiency lower transaction fees and much faster settlement times most projects like these are still in their early stages and not yet viable but one of ethereum's most popular uses helped Kevin's original idea for putting artwork on the blockchain takeoffs now to the latest Trend that's sweeping the internet the skyrocketing prices for Digital Arts sold as nfts nft sales now topping a half a trillion dollars today mfts or non-fungible tokens seem to be everywhere Nyan Cat is of course a meme of a cat with a Pop-Tart body prancing through space with rainbows flying out of the butt most of them are registered on ethereum where they exist as smart contract tokens on the blockchain it's been surreal to go from this personal collaboration with somebody and a transaction that was about collecting their art to the last few years as it became this big hype cycle the art world has been turned upside down again nfts for nearly anything imaginable sell through online marketplaces but even traditional auction houses have gotten in the game some of the most coveted and expensive are essentially digital brands that people desire part of what's so compelling to a lot of people that collect nfts especially when they're part of a large edition of them is that each individual work is digitally identified as being unique and you know that has meaning to people to the fans and enthusiasts they kind of feel like they're collecting baseball cards the big one is called board Apes which can kind of become almost a cultural brand on its own [Music] it's really cool it's like I want something that like kind of reminds me of me it would be really strange to see a celebrity like Paris Hilton go on a late night talk show and talk about a penny stock that they're investing in and recommending that others do the same but nfts have become a um acceptable topic for late night conversation the frenzy around new blockchain applications doesn't end with nfts blockchains are even being used to create new platforms for cooperation called decentralized autonomous organizations or Dows for short one was even involved in an attempt to buy an original copy of the U.S Constitution at an auction in New York City and the idea here was that good people came together and they decided they wanted to pull some funds and purchase a copy of the Constitution a digital Collective formed on a chat group and created a token on the ethereum blockchain that allowed members to contribute money to the project and have a vote on how it was run it started about a week ago it's got some friends in a group chat texting one another they found out the Constitution of the United States is going up on auction and you said you need to raise a lot of money and can we do it as soon as the monies are piling in we just got shocked that people actually like have their reads in us and we're like okay now we have to deliver it over the course of seven days nearly 20 000 members joined the Dow raising more than 40 million dollars well beyond the document's pre-auction estimate and now let's begin the auction lot 1787 the Constitution of the United States of America well starts being here at 10 million dollars at 10 million 11 million 12 million at 13 million now 14 million Ironically in the end the group's transparency was a liability at 41 million dollars sold 41 million dollars cattle 4-1-1 it was outbid by a hedge fund CEO who could see how much money they had raised but I think what's fascinating about Dao's is they really are providing these micro experiments in how do we organize and govern ourselves and our activities what we just accomplished no one has done in history before and now we get to plot our next move what do you want the future to look like what do we want to build next what do we want to do as thousands of experiments like Constitution Dao take place blockchain use is skyrocketing as are the environmental costs so ethereum Engineers have been working to implement a replacement for satoshi's energy intensive proof-of-work mechanism it's called proof of stake when we move from proof of work to proof of mistake the energy consumption of the ethereum platform will be reduced by 99.95 percent and not to grow again instead of spending costly energy to solve a computational problem and earn the right to add a block to the chain in proof of stake the system randomly assigns the right to add a block to those who already own coins the more coins a user owns the more likely they are to be chosen in this way proof of stake makes it possible to secure the blockchain without burning huge amounts of energy [Music] other blockchains already use proof of stake but it's never been tried at the scale of ethereum's network and what amounts to a giant software update could put the system at risk the classic metaphor we use in Tech is it's like trying to change the engines in a plane while it's in Flight the reason it's hard is because millions of people and way more millions of lines of code are relying on the system as it functions today all right we're one minute out guys still in bring 2022 a test suggests the upgrade might soon be ready [Applause] questions remain about the transition and whether it will end up trading one problem for another it's more environmentally responsible but perhaps less Fair since the wealthiest users will be able to stake more coins add more blocks and earn even more coins but in the meantime as crypto technology continues to evolve the question no one can answer yet is will it be able to live up to its decentralized promise ideally these blockchain platforms can help disintermediate the power that exists locked up in a handful of Corporations and kind of put that back into communities back into individual users and and maybe shift the trajectory from here to maybe over here back in Brooklyn that's the hope of Vernon and his programmer Akil who are finally ready to launch Equity coin on the ethereum blockchain we're going to allow for the sale of 10 700 tokens at 100 per token so it's 1.07 million dollars that we're going to be raising Vernon believes that trust will grow as people see how their interests are coded right into the tokens contract smart contracts take the rules and regulations of a normal contract and embed them into an automated system so that both parties can adhere to those rules and regulations without trusting each other it's a trustless way of doing business Vernon hopes for a decentralized future where crypto removes The Gatekeepers and levels the playing field JP Morgan rolling out the first cryptocurrency backed by a U.S Bank but the original promise of crypto may be in doubt fortune favors the brave as big business increasingly gets in on the action get started with crypto on venmo today nearly all crypto Financial transactions go through centralized exchanges that enable users to buy and sell Finance exchange the world they can decide which users can hold accounts and can freeze funds at the touch of a button this has drawn the interest of financial regulators a battle is brewing in Washington over how to regulate the cryptocurrency industry we have tremendous amounts of financial regulation and some of it is there for a very good reason it's to protect consumers but preserving the ability for competition and for people to innovate is also very important making sure that we don't unintentionally regulate into a world of a few very large powerful intermediaries I think that's very important as well the struggle to decentralize I think is never ultimately one every time you win it at one level you create a system in which you can lose it at the next level up there's the real concern that the future of crypto will look a lot like the present of the internet just a kind of re-entrangement of the same old forms of exploitation just on new terms one way or the other many believe blockchain is here to stay you don't unring that Bell it's not going to vanish what it's used for is something that we have has yet to be fully determined earn great Rising Don what's going on brother at last Vernon gathers his team to launch Equity coin and start raising money from the public let's do it [Music] I look at cryptocurrencies as being the very very early days of a better technology I think in the language of tech we are using the alpha rollout the earliest jankiest least figured out version of Something T minus three two and one boom just launched our investment packages everybody foreign [Music] foreign to order this program on DVD visit shop PBS or call 1-800 play PBS episodes of Nova are available with passport Nova is also available on Amazon Prime video [Music] thank you [Music] [Applause] foreign [Music]
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