What is Segregated Witness (SegWit)? How do you know you’re using SegWit? SegWit fixes transaction malleability and enables further upgrades towards Bitcoin smart contracts. Can transaction malleability lead to denial-of-service (DoS) attacks? Does SegWit put witness data in a different block? Did SegWit change transaction validation? versus? Are there any security risks of invalid blocks?
These questions are from the MOOC 9.3 and 9.5 sessions which took place on March 2nd and March 16th, 2018 respectively. Andreas is a teaching fellow with the University of Nicosia. The first course in their Master of Science in Digital Currency degree, DFIN-511: Introduction to Digital Currencies, is offered for free as an open enrollment MOOC course to anyone interested in learning about the fundamental principles.
If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop
In this talk, Andreas reviews the early history of Bitcoin, the distributed computing problems it aimed to solve, the governance implications for centralised financial institutions, and why this transformation is far more interesting than market price fluctuations.
This talk which took place at Pebble Beach for the Capgemini CXO Forum on November 1-3rd 2017 in Monterey, California.
RELATED:
Bitcoin for Beginners - https://www.youtube.com/playlist?list=PLPQwGV1aLnTuN6kdNWlElfr2tzigB9Nnj
The Stories We Tell About Money - https://youtu.be/ONvg9SbauMg
Money as a System-of-Control - https://youtu.be/FyK4P7ZdOK8
Fake News, Fake Money - https://youtu.be/i_wOEL6dprg
Delivering Liberty, at Scale - https://youtu.be/AecPrwqjbGw
Hardware, Software, Trustware - https://youtu.be/Etyjc1JdmFU
Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM
Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.
Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/
He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.
Subscribe to the channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos!
MASTERING BITCOIN, 2nd Edition: https://amzn.to/2xcdsY9
Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/
THE INTERNET OF MONEY, v1: https://amzn.to/2ykmXFs
THE INTERNET OF MONEY, v2: https://amzn.to/2IIG5BJ
Translations of THE INTERNET OF MONEY:
Spanish, 'Internet del Dinero' (v1) - https://amzn.to/2yoaTTq
French, 'L'internet de l'argent' (v1) - https://www.amazon.fr/Linternet-largent-Andreas-M-Antonopoulos/dp/2856083390
Russian, 'Интернет денег' (v1) - https://www.olbuss.ru/catalog/ekonomika-i-biznes/korporativnye-finansy-bankovskoe-delo/internet-deneg
Vietnamese, 'Internet Của Tiền Tệ' (v1) - https://alphabooks.vn/khi-tien-len-mang
MASTERING ETHEREUM (Q4): https://amzn.to/2xdxmlK
If you want early-access to talks and a chance to participate in a monthly LIVE Q&A with Andreas, become a patron: https://www.patreon.com/aantonop
Music: "Unbounded" by Orfan (https://www.facebook.com/Orfan/)
Outro Graphics: Phneep (http://www.phneep.com/)
Outro Art: Rock Barcellos (http://www.rockincomics.com.br/)
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https://www.youtube.com/watch?v=rvwVbRQ5Ysc
In this Bitcoin Q&A, Andreas explains how to be sure your hardware wallet has actually deleted your mnemonic phrase.
00:00 - Does deleting a mnemonic phrase from a hardware wallet make it impossible to recover?
00:18 - In most cases, deleting means permanant deletion
00:47 - If it's a lot of money, it's safer to destroy the wallet
What is a Monthly Q&A Community Builder Livestream?
Once a month, Andreas answers community questions on anything related to Bitcoin, Ethereum, the Lightning Network, really anything related to open blockchains. He’s live on YouTube for about an hour, answering the best questions asked by Community Builders on Patreon, Community Members on YouTube, and anyone who shows up during the event.
How can I ask questions and vote?
You’re welcome to ask your question at the next Livestream event. You can find out when it is by subscribing to the channel and turning on notifications or by visiting this playlist: https://www.youtube.com/playlist?list=PLPQwGV1aLnTtqBtaD-hSCf9RwpwQQy-Ji.
Community Builders who support this free work on Patreon get to ask questions and vote on questions at least a week before the event. YouTube Community Members who support this work get to ask questions and vote an hour before the event starts. Everyone else gets to ask questions and vote on questions when the event starts. Giving early access is a small way Andreas can give something to the people who help to financially support the mission and still include anyone who wants to participate.
SUBSCRIBE to this YouTube channel and select the bell ? for notifications: https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ?sub_confirmation=1
JOIN this YouTube channel to become a YouTube Community Member and access custom emojis and other perks: https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ/join
BECOME a Community Builder: https://patreon.com/aantonop
You may already know that Andreas’ mission is to educate as many people as possible about Bitcoin and open blockchain technologies. Watching and sharing these videos is one way to do that. Thank you for being part of this mission!
About aantonop: Andreas isn't promoting a company or an organization; he's paid by the community (people who support this work on Patreon and YouTube) and provides an unbiased look at open blockchain technologies, what they can do for our societies, and how to get involved (if you decide you want to). Learn more at https://aantonop.com
***Learn More From Andreas’ Workshops, Books & Events**
Amazon & Kindle: http://www.amazon.com/-/e/B00MVAG8Z8
Audible: https://www.audible.com/author/Andreas-M-Antonopoulos/B00MVAG8Z8
E-books & Merch: https://aantonop.io/shop
Patreon: https://patreon.com/aantonop
Website: https://aantonop.com
Workshops: https:/
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https://www.youtube.com/watch?v=KmmJgrAJDU0
Explain the locking and unlocking scripts in transactions. How are transaction signatures verified by nodes and miners? What happens to unconfirmed transactions from orphaned blocks? Do non-mining nodes get a reward?
These questions are from the third and fourth sessions of MOOC 12, which took place on September 27th and October 4th 2019. If you want early-access to talks and a chance to participate in the monthly live Q&As with Andreas, become a patron: https://www.patreon.com/aantonop
RELATED:
Measuring Success: Price or Principle - https://youtu.be/mPMsbgWl9p4
Beyond Price: Bitcoin's Impact on the Future - https://youtu.be/rvwVbRQ5Ysc
Consensus Algorithms, Blockchain Technology, and Bitcoin - https://youtu.be/fw3WkySh_Ho
Advanced Bitcoin Scripting Part 1: Transactions and Multisig - https://youtu.be/8FeAXjkmDcQ
Advanced Bitcoin Scripting Part 2: SegWit, Consensus, and Trustware - https://youtu.be/pQbeBduVQ4I
What is Consensus: Rules without Rulers - https://youtu.be/2tqo7PX5Pyc
Forkology: A Study of Forks for Newbies - https://youtu.be/rpeceXY1QBM
Bitcoin: Where the Laws of Mathematics Prevail - https://youtu.be/HaJ1hvon0E0
Software distribution security - https://youtu.be/_V0vqy046YM
What is mining? - https://youtu.be/t4p4iMqmxbQ
The mining process - https://youtu.be/L4Xtau0YMJw
Nonces, mining, and quantum computing - https://youtu.be/d4xXJh677J0
Iterating nonces and the block reward - https://youtu.be/tjn2aoMaFlY
Miners, pools, and consensus - https://youtu.be/JHz7LM4ncLw
Mining, energy prices, and fee market - https://youtu.be/hrVCd6Pt4l4
What is difficulty targeting? - https://youtu.be/h429LCTRmQw
Hash functions, SHA-256 mining, and addresses - https://youtu.be/zI9jnB8HFkI
Genesis block and coinbase transactions - https://youtu.be/strhfzJ56QE
Cryptographic primitives - https://youtu.be/RIckQ6RBt5E
The rules of Bitcoin (part 1) - https://youtu.be/VnQu4uylfOs
The rules of Bitcoin (part 2) - https://youtu.be/vtIp0GP4w1E
Rules versus rulers - https://youtu.be/9EEluhC9SxE
The value of proof-of-work - https://youtu.be/ZDGliHwstM8
Could a state-sponsored 51% attack work? - https://youtu.be/KUd8ZGgm6Qo
Honest nodes and consensus - https://youtu.be/KAhY2ymI-tg
Spam transactions and Child Pays For Parent (CPFP) - https://youtu.be/t3c0E4fkSNs
Is Bitcoin a democracy? - https://youtu.be/TC3Hq76UT5g
Governments versus Proof-of-Work or Proof-of-Stake - https://youtu.be/qrwgYDAoZV0
Decentralized power, leaderless governance - https://youtu.be/E5VbDlQTPzU
What is the role of nodes? - https://youtu.be/fNk7nYxTOyQ
Why running a node is important - https://youtu.be/oX0Yrv-6jVs
Spam transactions and Child Pays For Parent (CPFP) - https://youtu.be/t3c0E4fkSNs
Energy consumption - https://youtu.be/2T0OUIW89II
Solar energy and mining in space - https://youtu.be/cus
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https://www.youtube.com/watch?v=dm-bgXOuJWA
Keywords/phrases: Governance problems which have allowed skeptics in the media to latch on to the failures of decentralised systems. Decentralisation isn't a Boolean, it's a range. Is it much more decentralised than anything we've built before, including its governance? Yes. You will not notice that developers and miners really don't have control to effect change until something goes wrong, until there's a highly contentious issue. They may want to offer a straightforward, direct, and simple solution, but the system won't let them do that. Lead developers can make limited decisions about what they include in the code, but with blockchains you can either have opinions or continue to make money; if your opinions get too strong, you stop making money. Governance in these systems is tricky because by making those explicit trade-offs, we get liberty. If you want to have quick / simple / easy solutions, you will elect a dictator. The trains may run on time, but the destination might be a death camp, an efficient operation for killing people. Democracy is incredibly inefficient, but we practice it anyway because we appreciate the trade-offs that it gives us: self-expression; self-determination; freedom of association, of religion, of consciousness. Governance in network-centric systems are open to permissionless access and innovation, systems which exhibit a very high degree of autonomy and censorship resistance. The price we pay is that our debates are loud, messy, and sometimes don't end, because there's no centralised authority to filter everyone's opinions; that's how corporations and governments run. We've tried that, and if we want that kind of money, we have that kind of money. The bottom line is that this not an accident, it's an explicit trade-off: efficiency is the price we pay to buy liberty. I will pay that price because I can apply engineering optimisation to efficiency; Bitcoin and Ethereum were the first times I could apply engineering optimisation to liberty.
This is part of a talk which took place on Sep 18th 2016 for the Silicon Valley Ethereum meetup at the Institute For The Future in Palo Alto, California: https://www.meetup.com/EthereumSiliconValley/events/233988744/
RELATED:
West vs. East: The Consensus Balance of Power -
https://www.youtube.com/watch?v=q6NbTB1af88
Do miners control consensus? - https://www.youtube.com/watch?v=uzwxewJipHI
Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin.
Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/
He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Mo
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https://www.youtube.com/watch?v=dtwaW79Fj7c
That DEX you're using, is it really a DEX (decentralized exchange)? Or is it more of a CEX (centralized exchange)? How decentralized are DEXs? Well, which part of it is decentralized? Does it enable peer-to-peer exchange? Is a business running it? Does it require KYC/AML? In this video Andreas discusses what a DEX actually is and reviews 5 criteria you can use to figure out how decentralized the exchange is that you're looking at.
0:00 Is DEX just a marketing word?
0:17 The word decentralized is not a definition, it describes a spectrum, it describes a group of behaviors
0:45 Difference between DEX(decentralized exchange) and CEX(centralized exchange)
1:16 Is it custodial or non-custodial? Does it require some kind of identification?
2:08 Does it operate across multiple cryptocurrencies and blockchains or is it limited to one?
2:53 Does it have a decentralized order book or does it rely on a central service for matching buyers and sellers? What is the interface you're using to access it?
This was one of many questions I answered on DEXs during a bonus livestream on August 15, 2020. Watch the entire Decentralized Exchange livestream: https://youtu.be/ugPa1r2OdIU.
Related Videos:
Bitcoin Q&A: Decentralized exchanges with fiat - https://youtu.be/3Url8tbQEkA
Patrons and YouTube Community Builders get to ask questions early, get behind-the-scenes info, and get early access to my work. Learn more at https://www.patreon.com/aantonop. Learn more about becoming a Community Builder: https://patreon.com/aantonop Join the YouTube Channel: https://www.youtube.com/channel/UCJWCJCWOxBYSi5DhCieLOLQ/join
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Music: "Unbounded" by Orfan (https://twitter.com/grassfedbitcoin)
Don't forget to SUBSCRIBE to this YouTube channel and select the bell ? for notifications.
Thanks for watching!
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https://www.youtube.com/watch?v=BRLVgb9IbtM
Presented in Sao Paulo, this talk by Andreas focuses on the opportunity that bitcoin brings to emerging economies like Brazil.
This talk was delivered on April 8th 2016 at the coinBR Bitcoin Summit in Sao Paolo, Brazil: https://antonopoulos.com/event/coinbr-bitcoin-summit-sao-paolo-brazil/
Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.
Follow on Twitter: @aantonop https://twitter.com/aantonop
Website: https://antonopoulos.com/
He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.
Subscribe to the channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos!
MASTERING BITCOIN, 2nd Edition: https://amzn.to/2xcdsY9
Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/
THE INTERNET OF MONEY, v1: https://amzn.to/2ykmXFs
THE INTERNET OF MONEY, v2: https://amzn.to/2IIG5BJ
Translations of THE INTERNET OF MONEY:
Spanish, 'Internet del Dinero' (v1) - https://amzn.to/2yoaTTq
French, 'L'internet de l'argent' (v1) - https://www.amazon.fr/Linternet-largent-Andreas-M-Antonopoulos/dp/2856083390
Russian, 'Интернет денег' (v1) - https://www.olbuss.ru/catalog/ekonomika-i-biznes/korporativnye-finansy-bankovskoe-delo/internet-deneg
Vietnamese, 'Internet Của Tiền Tệ' (v1) - https://alphabooks.vn/khi-tien-len-mang
MASTERING ETHEREUM (Q4): https://amzn.to/2xdxmlK
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https://www.youtube.com/watch?v=ieP8kxaklUk
What are the risks of participating in a mixing service? Should US citizens be worried about using these services? What are the risks for the operators of these services?
This question is from the February 2020 live Q&A for Patrons, which took place on February 29th, 2020. If you want early-access to talks and a chance to ask questions in the monthly live Q&As with Andreas, become a Patron: https://www.patreon.com/aantonop
Related:
Bitcoin Q&A: Re-using addresses - https://youtu.be/4A3urPFkx8g
Bitcoin Q&A: Exchanges, identity, and surveillance - https://youtu.be/TVFy8xXfxAA
Bitcoin Q&A: How is fungibility tied to privacy? - https://youtu.be/VuI-8EwqIS8
Bitcoin Q&A How does the Lightning Network effect users' privacy? - https://youtu.be/89GJH4PgG6M
Delivering Liberty, at Scale - https://youtu.be/AecPrwqjbGw
Bitcoin Q&A: Lightning and onion routing - https://youtu.be/D-nKuInDq6g
Bitcoin Q&A: Misconceptions about Lightning Network - https://youtu.be/c4TjfaLgzj4
Andreas M. Antonopoulos is a best-selling author, speaker, educator, and highly sought after expert in Bitcoin and open blockchain technologies. Andreas has written two best-selling technical books for programmers, “Mastering Bitcoin” and “Mastering Ethereum”. He has published “The Internet of Money” series of books, which focus on the social, political, and economic importance and implications of these technologies. He is known for making complex subjects easy to understand and highlighting both the positive and negative impacts these technologies can have on our global societies.
Subscribe to this channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos!
Follow on Twitter: @aantonop // https://twitter.com/aantonop
Connect on Facebook: https://www.facebook.com/AndreasMAntonopoulos
Connect on LinkedIn: https://www.linkedin.com/company/aantonop/
Follow on Instagram: https://www.instagram.com/amantonop/
Learn More: aantonop.com
Listen to the “Unscrypted” Podcast: https://aantonop.com/unscrypted/
MASTERING BITCOIN, 2nd Edition: https://amzn.to/2xcdsY9
Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/
MASTERING ETHEREUM: https://amzn.to/2xdxmlK
THE INTERNET OF MONEY, v1: https://amzn.to/2ykmXFs
THE INTERNET OF MONEY, v2: https://amzn.to/2IIG5BJ
THE INTERNET OF MONEY, v3: https://aantonop.io/tiomv3
Translations of THE INTERNET OF MONEY:
Spanish, 'Internet del Dinero' (v1) - https://amzn.to/2yoaTTq
German, 'Das Internet des Geldes' (v1) - https://amzn.to/2LEiyqO
German, 'Das Internet des Geldes' (v2) - https://amzn.to/2VCzse5
French, 'L'internet de l'argent' (v1) - https://www.amazon.fr/Linternet-largent-Andreas-M-Antonopoulos/dp/2856083390
Vietnamese, 'Internet Của T
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https://www.youtube.com/watch?v=9g_nF6NKSOw
Keywords: Predictions for the next 30-40 years and why they are difficult to make. How networks make the nation-state model obsolete. The future of politics is not left vs. right, it's land vs. cloud. The networked vs. the landlocked.
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https://www.youtube.com/watch?v=h4bwcxRgD94
This talk took place on December 3rd 2016 at the Coinscrum {MiniCon}, hosted by Imperial College in London, England: https://www.meetup.com/coinscrum/events/235709468/
Want to hear more about Bitcoin and open blockchains?
Follow on Twitter: @aantonop
Visit my website: https://antonopoulos.com/
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https://www.youtube.com/watch?v=Bu5Mtvy97-4