Blockchain: What is it, and why does it matter?

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He weighs in on the pros and cons of investing in cryptocurrency.”},{“title”:”Ripple CEO: Crypto industry must address energy demand”,”duration”:”03:27″,”sourceName”:”CNNBusiness”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2021/04/01/ripple-ceo-crypto-energy-environment.cnnbusiness/index.xml”,”videoId”:”business/2021/04/01/ripple-ceo-crypto-energy-environment.cnnbusiness”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/210401140138-ripple-ceo-brad-garlinghouse-large-169.jpg”,”videoUrl”:”/videos/business/2021/04/01/ripple-ceo-crypto-energy-environment.cnnbusiness/video/playlists/business-digital-currency/”,”description”:”Brad Garlinghouse, CEO of Ripple, says the environmental impact of digital transactions “could limit the success of these technologies.””,”descriptionText”:”Brad Garlinghouse, CEO of Ripple, says the environmental impact of digital transactions “could limit the success of these technologies.””},{“title”:”Why bitcoin could triple over next year”,”duration”:”02:10″,”sourceName”:”CNN Business”,”sourceLink”:”http://www.cnn.com/business/”,”videoCMSUrl”:”/video/data/3.0/video/business/2021/03/03/bitcoin-crypto-william-quigley-markets-now.cnn-business/index.xml”,”videoId”:”business/2021/03/03/bitcoin-crypto-william-quigley-markets-now.cnn-business”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/210219081655-02-bitcoin-file-large-169.jpg”,”videoUrl”:”/videos/business/2021/03/03/bitcoin-crypto-william-quigley-markets-now.cnn-business/video/playlists/business-digital-currency/”,”description”:”William Quigley, managing director of Magnetic, explains why he believes that bitcoin’s value can still rise dramatically into 2022.”,”descriptionText”:”William Quigley, managing director of Magnetic, explains why he believes that bitcoin’s value can still rise dramatically into 2022.”},{“title”:”Visa CEO: We see digital currency as a player in global commerce”,”duration”:”03:20″,”sourceName”:”CNNBusiness”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2021/02/17/visa-ceo-digital-currency-transactions.cnnbusiness/index.xml”,”videoId”:”business/2021/02/17/visa-ceo-digital-currency-transactions.cnnbusiness”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/210217144102-visa-ceo-al-kelly-large-169.jpg”,”videoUrl”:”/videos/business/2021/02/17/visa-ceo-digital-currency-transactions.cnnbusiness/video/playlists/business-digital-currency/”,”description”:”Al Kelly, CEO of Visa, discusses how Visa is working to create utility around cryptocurrency.”,”descriptionText”:”Al Kelly, CEO of Visa, discusses how Visa is working to create utility around cryptocurrency.”},{“title”:”Tesla invests $1.5 billion in bitcoin”,”duration”:”03:17″,”sourceName”:”CNNBusiness”,”sourceLink”:”https://www.cnn.com/2021/02/08/investing/tesla-bitcoins/index.html”,”videoCMSUrl”:”/video/data/3.0/video/business/2021/02/08/bitcoin-tesla.cnnbusiness/index.xml”,”videoId”:”business/2021/02/08/bitcoin-tesla.cnnbusiness”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/201202115204-bitcoin-large-169.jpg”,”videoUrl”:”/videos/business/2021/02/08/bitcoin-tesla.cnnbusiness/video/playlists/business-digital-currency/”,”description”:”Tesla is betting big on bitcoin, saying it may soon accept the digital currency as payment for its cars. CNN’s Paul R. La Monica reports.”,”descriptionText”:”Tesla is betting big on bitcoin, saying it may soon accept the digital currency as payment for its cars. CNN’s Paul R. La Monica reports.”},{“title”:”Scaramucci: Bitcoin is due for a correction”,”duration”:”01:02″,”sourceName”:”CNN Business”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2020/12/16/bitcoin-anthony-scaramucci-markets-now.cnn-business/index.xml”,”videoId”:”business/2020/12/16/bitcoin-anthony-scaramucci-markets-now.cnn-business”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/201216123432-20201216-markets-now-10-large-169.jpg”,”videoUrl”:”/videos/business/2020/12/16/bitcoin-anthony-scaramucci-markets-now.cnn-business/video/playlists/business-digital-currency/”,”description”:”Just how far can Bitcoin prices rise? Anthony Scaramucci tells CNN’s Alison Kosik that Bitcoin’s best days are ahead, but the ride will be volatile.”,”descriptionText”:”Just how far can Bitcoin prices rise? Anthony Scaramucci tells CNN’s Alison Kosik that Bitcoin’s best days are ahead, but the ride will be volatile.”},{“title”:”PayPal CEO: Our move into cryptocurrencies is to bolster utility”,”duration”:”03:57″,”sourceName”:”CNNBusiness”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2020/11/23/paypal-ceo-cryptocurrency-bitcoin.cnnbusiness/index.xml”,”videoId”:”business/2020/11/23/paypal-ceo-cryptocurrency-bitcoin.cnnbusiness”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/201123105600-paypal-cryptocurrency-large-169.jpg”,”videoUrl”:”/videos/business/2020/11/23/paypal-ceo-cryptocurrency-bitcoin.cnnbusiness/video/playlists/business-digital-currency/”,”description”:”Dan Schulman, President and CEO of PayPal, says the decision to accept digital currencies is to help shape the future of everyday commerce.”,”descriptionText”:”Dan Schulman, President and CEO of PayPal, says the decision to accept digital currencies is to help shape the future of everyday commerce.”},{“title”:”He says Facebook’s Libra is the future. Lawmakers aren’t so sure”,”duration”:”03:38″,”sourceName”:”CNN”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2019/11/12/libra-calibra-david-marcus-facebook-risk-takers-orig.cnn/index.xml”,”videoId”:”business/2019/11/12/libra-calibra-david-marcus-facebook-risk-takers-orig.cnn”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/190923125500-20190919-rt-gfx-david-marcus-facebook-large-169.jpg”,”videoUrl”:”/videos/business/2019/11/12/libra-calibra-david-marcus-facebook-risk-takers-orig.cnn/video/playlists/business-digital-currency/”,”description”:”In the midst of intense regulatory scrutiny, is Facebook the right company to take cryptocurrency mainstream? Facebook executive David Marcus tells CNN Business’ Rachel Crane why the world needs Libra.”,”descriptionText”:”In the midst of intense regulatory scrutiny, is Facebook the right company to take cryptocurrency mainstream? Facebook executive David Marcus tells CNN Business’ Rachel Crane why the world needs Libra.”},{“title”:”Facebook unveils Libra, a new cryptocurrency. Here are the details”,”duration”:”02:08″,”sourceName”:”CNN”,”sourceLink”:”http://www.cnn.com/”,”videoCMSUrl”:”/video/data/3.0/video/tech/2019/06/18/facebook-libra-cryptocurrency-sebastian-first-move.cnn/index.xml”,”videoId”:”tech/2019/06/18/facebook-libra-cryptocurrency-sebastian-first-move.cnn”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/190618091058-facebook-libra-large-169.jpg”,”videoUrl”:”/videos/tech/2019/06/18/facebook-libra-cryptocurrency-sebastian-first-move.cnn/video/playlists/business-digital-currency/”,”description”:”Facebook formally unveiled its highly-anticipated digital currency project called Libra. CNN’s Clare Sebastian looks at what makes this different than other cryptocurrencies.”,”descriptionText”:”Facebook formally unveiled its highly-anticipated digital currency project called Libra. CNN’s Clare Sebastian looks at what makes this different than other cryptocurrencies.”},{“title”:”Winklevoss twins call crypto the ‘ultimate social network'”,”duration”:”01:34″,”sourceName”:”CNN Business”,”sourceLink”:””,”videoCMSUrl”:”/video/data/3.0/video/business/2019/03/11/winklevoss-twins-crypto-app-zw-mc-orig.cnn-business/index.xml”,”videoId”:”business/2019/03/11/winklevoss-twins-crypto-app-zw-mc-orig.cnn-business”,”videoImage”:”//cdn.cnn.com/cnnnext/dam/assets/190310213617-cameron-tyler-winklevoss-large-169.jpg”,”videoUrl”:”/videos/business/2019/03/11/winklevoss-twins-crypto-app-zw-mc-orig.cnn-business/video/playlists/business-digital-currency/”,”description”:”Cameron and Tyler Winklevoss sat down with CNN Business to discuss their crypto exchange, Gemini, and plans for their recently launched mobile app.”,”descriptionText”:”Cameron and Tyler Winklevoss sat down with CNN Business to discuss their crypto exchange, Gemini, and plans for their recently launched mobile app.”}],’js-video_headline-featured-1lbezfg’,”,”js-video_source-featured-1lbezfg”,true,true,’business-digital-currency’);if (typeof configObj.context !== ‘string’ || configObj.context.length