An academic lecture by Andreas M. Antonopoulos explaining the consensus algorithm, “Proof of Work”, used by bitcoin and many other blockchains. Andreas is a UCL alum.

This talk was presented in collaboration with the Department of Computer Science at University College London.

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

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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

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

35 COMMENTS

  1. Dr Andreas me perdoe e algo fiz centros supletivo s com problema de saúde deste criança são estudos………se formar desocupado e algo sério livros dor cabeça ética segurança saúde costas peso desobediência e perto portão rua como chá ? Pede pedra sopa receita.? Hoje como pessoas com perdas de espaço aceita café?

  2. Mac Terminal:

    hasum <<< 'Hello!'
    a8d191538209e335154750d2df575b9ddfb16fc7

    shasum <<< 'Hello!0'
    0e0978c3bcd55ccb10ef61aa900adee01c512d5e

    shasum -a 256 <<< 'Hello!'
    b22b009134622b6508d756f1062455d71a7026594eacb0badf81f4f677929ebe

    shasum -a 256 <<< 'Hello!0'
    7460100bc6dcc237f60b0b47c27c731ea41b64fb5462e2e4c2dd33d5f57f7fe9

  3. Watching this in 2019 gives me a real feeling of how tech evolves! This was recorded when BITCOIN CASH was still a theory without a name yet, we have two bitcoin cash now! lightning network was still alive only in theory, we have payment channels funded with 1 BTC currently and still growing! Truly bullish on the future of crypto!!?

  4. 26:36 Who sets the validation rules? I disagree with your answer here Andreas! I think the answer is simply 'consensus' (and all that that implies). Discussing reference implementation and core implementation may be technically correct, but it's conceptually wrong. kthxbi

  5. Andreas, you have such a fantastic way of explaining things in the most clear, simple, precise, and non-arrogant way. People love you because you are clearly a genius but you don't make your listeners feel dumb. Bravo sir.

  6. just for people who wonder, the guy in the room gave the sha-1 hash, not the sha256 hash, he run the command wrong (i guess using mac, where default is sha-1 from the shasum command)

  7. blockchain seems intelligent but it is not the future
    what a nightmare of doing things
    it is not good
    it is like coal
    we already have better systems

  8. so all the race are for the Zeros. or any particular line of same numbers in the begining of hash. could it be a line of "1111jhdihwbvih…"? or"…ijwdhgviwfh000000000"?. I'm wondering what the reason behind chosing "zeros before hash" as a main cryteria?? is it the hadrest combination to find somehow?

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