How many transactions can fit in a block, with or without SegWit? What other types of data can you put in a block? What is metadata? What is OP_RETURN? What is OpenTimestamps and what are the use cases?
More on OP_RETURN – https://en.bitcoin.it/wiki/OP_RETURN
Check out OpenTimestamps here: https://opentimestamps.org/
These questions are from MOOC 9.6 and the June monthly Patreon sessions, which took place on March 23rd and June 24th 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
RELATED:
Immutability and Proof-of-Work: The Planetary Scale Digital Monument – https://youtu.be/rsLrJp6cLf4
What is Segregated Witness? – https://youtu.be/dtOjjB4mD8k
SegWit and fork research – https://youtu.be/OorLoi01KEE
The value of proof-of-work – https://youtu.be/ZDGliHwstM8
Scaling strategies and adoption – https://youtu.be/dML1a_Ek9Kw
Impact of smart contracts on law & accounting – https://youtu.be/K-TRzuPwJCc
Instrinsic vs. extrinsic assets – https://youtu.be/KDtfFNZy9xg
MimbleWimble and Schnorr signatures – https://youtu.be/qloq75ekxv0
Empty blocks, orphan blocks, and valid chains – https://youtu.be/dizF2S63RXY
Setting up secure storage devices – https://youtu.be/wZ9LxLLvfXc
Multi-signature and distributed storage – https://youtu.be/cAP2u6w_1-k
Cryptographic primitives – https://youtu.be/RIckQ6RBt5E
Why Open Blockchains Matter – https://youtu.be/uZPIz3ArQww
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.
THE INTERNET OF MONEY, v1: https://www.amazon.co.uk/Internet-Money-collection-Andreas-Antonopoulos/dp/1537000454/ref=asap_bc?ie=UTF8
[NEW] THE INTERNET OF MONEY, v2: https://www.amazon.com/Internet-Money-Andreas-M-Antonopoulos/dp/194791006X/ref=asap_bc?ie=UTF8
MASTERING BITCOIN: https://www.amazon.co.uk/Mastering-Bitcoin-Unlocking-Digital-Cryptocurrencies/dp/1449374042
[NEW] MASTERING BITCOIN, 2nd Edition: https://www.amazon.com/Mastering-Bitcoin-Programming-Open-Blockchain/dp/1491954388
Translations of MASTERING BITCOIN: https://bitcoinbook.info/translations-of-mastering-bitcoin/
Subscribe to the channel to learn more about Bitcoin & open blockchains!
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/)
source
Bitcore block size is significantly larger. The blockchain can handle over 300TX/sec and over 500TX/sec with Segwit
Bitcoin Core Bug CVE-2018
Dubbele spending bug(miners) , upgrade to 16.3V
Hi Aantonop ,
Is this Heck in the Bitcoin protocol its self , or in a Wallet?
And is this a vunerable spot for Bitcoin?
Greetings Harm ,
PS: is there a channel for asking these questions?
Can you say what BIP 109 is?
I'm still censored from viewing ur content on Twitter from what I can tell blicked for pointing out a fake account pretending to be you
You look like you need some rest mate, take it easy, don't overwork yourself 🙂
Ok, so I've been computing since the early 90s. 1400 baud, BBS's, disconnected and changing ISP's every 2 months. So I know a little bit about computers and the Internet. But I even though I took a couple of programming courses some time ago, I found that I have very little talent in that area.
So all this being said: An idea just popped into my head that is probably very easily shot down by any beginner programmer but I don't know for sure so here it is.
Is it possible to make some small change to the Bitcoin Blockchain that does not sacrifice security, just enough so that it is on it's own blockchain and then create as many "Bitcoin Blocckchains" as necessary in order to solve the transactions per second problem
Bitcoin1, Bitcoin2, Bitcoin3, etc….
Interesting about hashing a document and storing the "fingerprint" on blockchain while storing the document elsewhere. I want to know how that helps with tamper-proof though. If the document itself is changed or stolen from its (for example) cloud database, it sounds like there is no proof as to what was on the original document. The only thing known would be that it is not the same thing as originally put on the blockchain. I don't really understand how that is of any benefit to anyone.
I do not agree that block systems are the most expensive and inefficient form of data storage in the world.
Proof of existence, also known as "proof by newspaper" used by kidnappers to prove that someone is still alive up to a given time. Satoshi itself used proof by newspaper for the genesis block. Not completely trustless as the Bitcoin blockchain but still very effective
Isn't it 40 bytes max for OP_RETURN?
meth is such a scam. I can't believe you keep talking about it and promoting it. Disappointed.
This is by far the most interesting video Andreas has done this summer
Thanks Andreas!
Factom is also very useful for this. Like open timestamps it also makes use of Merkel trees to secure data.
Wouldn’t ravencoin or ethereum be good for storing proof of existence hash?
Smashed the like……
Can you please explain how non-private transactions cause a currency to not be fungible, thank you!
John McAfee's said the chart for Bitcoin will surely reach 1million USD before 2030. If said thing is to happen, like his past predictions happened, IT will be very very unwise for you not to know how to Increase your Btc instead of Just Hodling. I lost 8Btc to Bitconnect in January and i was left with 2Btc , I started looking for ways to increase my Bitcoin and make more money. One day on Altcoin Buzz channel, someone Recommended anybody that cares to listeeen to reach out to a man named Alfred Churchill , who has made a great impact in teaching young crypto investors a reliable method to Increase their Bitcoins, Its just 5 weeks since I reached out to Him, I can Proudly boast of increasing my Portfolio from 2Btc to 18Btc . Y'all can reach out to him through His Whatsapp +1(951)380-3828*, *HANGOUT and Mail *(Alfredchurchill79@gmail. com)
I have question about segwit. So is block size now 2-4mb? Or is that Max? All miners do not fill the blocks up all the way? Does that slow down confirmation times?
First!