Matt Thomas
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7 selected videos
ep 16: How to buy Bitcoin online...and then give it away to charity (Coinbase and RNLI)
In this video I show you how you can buy bitcoin online using your debit card (using Coinbase) if you can't get to a bitcoin ATM.
I also show you an example of a charity who have embraced the concept of bitcoin and are accepting bitcoin donations.
Buy bitcoin online
https://www.coinbase.com
RNLI donation page
https://rnli.org/support-us/give-money/bitcoin-donations
Bitcoin address
1PZ5ebvdt43dvRRgRNgBhsq2PwAKN4X6W
See the transaction in smartbit blockchain...
Related topics : buy bitcoins online with debit card / accept bitcoin donations / use bitcoin to buy / buy with bitcoin
Blockchain/Bitcoin for beginners 4: Bitcoin ATM - How to buy bitcoin
In this video Nadisha goes to the Bitcoin ATM in Shoreditch and buys some bitcoins, managed by her Iphone wallet app.
All this is building up towards an in depth explanation of what bitcoin really is and how it works, but I want to introduce it gently with some real world examples to give it context.
In the next video I'll give an overview of the BreadWallet app for Iphone and examine in depth the transactions that represent this ATM Bitcoin purchase.
Music:
Frost Waltz (Alternate) by...
Related topics : buy bitcoin wallet / blockchain bitcoin wallet app / how do i buy bitcoins
Blockchain/Bitcoin for beginners 8: Bitcoin addresses, public key hash, P2PKH transactions
Before we delve into the inner workings of a bitcoin transaction I wanted to explain how the actual bitcoin address is derived from the public key which in turn is derived from the private key.
I take through step by step all the steps required to derived the checksums etc and show with a real example of a real bitcoin transaction.
Also discuss why checksums are included in Bitcoin addresses in order to eliminate the possibility of characters being corrupted, or modified in transit.
This is...
Related topics : bitcoin transactions explained / bitcoin address blockchain / all bitcoin private keys / bitcoin wiki transaction
Blockchain/Bitcoin for beginners 5: Bitcoin wallets, how to transfer bitcoins using BreadWallet iOS
In this video we continue from last time where Nadisha bought the bitcoins at the ATM and we use the same BreadWallet iPhone app to transfer some of the bitcoin back to me on my own BreadWallet app using the QR camera/reader.
We also briefly introduce the concepts of transaction inputs and outputs and the concept of the payer paying back change to themselves in the transaction.
Thes concepts will be delved into in more detail in later videos, this is more just for setting it up so the penny...
Related topics : bitcoin wallet transfer time / use bitcoin
Blockchain/Bitcoin for beginners 9: Bitcoin difficulty, target, BITS - all you need to know
In this video I break the somewhat confusing and mysterious question of how exactly the block difficulty is defined, represented and updated.
There is a simplification/misconception that the requirement is just to find a hash with a required number of leading zeros in hex. This is not the case, it's a little more intricate than that....
I show some examples of real blocks - in particular focusing on the genesis block, and how import it is for initializing the difficulty of mining a block.
I...
Related topics : all you need to know about bitcoin mining / bitcoin difficulty target
Blockchain/Bitcoin for beginners 2: Hashing, blockchain networks, blockchain browser
Episode two of my series on Blockchain/Bitcoin. I'm joined by my girlfriend Nadisha who is my classroom pupil...
I build on the physical analogy in the first episode and explain the basic concepts behind a real blockchain network.
Then go on to talk about hashing, and then give a live demo of the real Bitcoin blockchain to illustrate what a real blockchain looks like
Bitcoin Blockchain browser
https://blockchain.info
Online hash calculator - great way to practice and familiarise with hash...
Related topics : bitcoin blockchain explained
Blockchain/Bitcoin for beginners 6: blocks and mining, content and creation of bitcoin blocks
In this video we introduce the basic concepts behind how new blocks are created in the Bitcoin blockchain.
We start by taking another look at the blockchain.info website to see some sample blocks and then to a quick screencast explaining how new, unconfirmed transactions are collected by mining nodes and included in new transaction blocks, whose header needs to be hashed along with a random number to produce an output hash meeting a set requirement.
I mention that the requirement is that the...
Related topics : bitcoin transactions per block
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