Meta X Blockchain Bootcamp
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This document provides an introduction to blockchain technology and its potential applications in digital advertising. It explains key concepts such as what a blockchain is, how it uses cryptography and hash functions to securely store data in blocks, and how the linking of blocks through previous hashes makes the blockchain immutable and resistant to change. The document demonstrates how to build a sample blockchain and discusses how the decentralized nature of blockchains achieves consensus without the need for a central authority. It concludes by outlining the agenda for a blockchain bootcamp focused on use cases for advertisers and publishers.
Meta X Blockchain Bootcamp
- 1. BLOCKCHAIN BOOTCAMP AN INTRODUCTION TO BLOCKCHAIN IN DIGITAL ADVERTISING FOR ADVERTISERS AND PUBLISHERS
- 3. “A Blockchain is a distributed database secured by cryptography. It is used in Bitcoin and Ethereum.” A blockchain has a list of blocks. A blockchain always starts with one block, called the genesis block.
- 4. WHAT IS A BLOCK? A Block is a package of data that can be permanently recorded onto a blockchain.
- 5. CRYPTOGRAPHY
- 6. Cryptography is a method of storing and transmitting encrypted data so that only the intended receiver can read and decrypt the message. Another way of saying – It is the art of writing or solving codes, spycraft.
- 7. SECURE HASH ALGORITHM (SHA-256) Bitcoin, and pretty much all cryptocurrency uses what's called a "secure hash algorithm" also known as SHA, to encrypt transactions. It was designed by the National Security Agency (NSA) for civilian use.
- 9. WHAT’S IN A BLOCK? BLOCK ID: The Block ID or The Block Index is the position of the block in the chain. The genesis block has an index of 0. The next block will have an index of 1.
- 10. WHAT’S IN A BLOCK? NONCE: The Nonce is the number used to find a valid hash. It is an additional variable that makes a hash unbreakable. The nonce is the independent variable in the hash function that increases from 0 until a valid hash is found.
- 11. WHAT’S IN A BLOCK? DATA: The Data is what's stored on the block. In bitcoin for example, the data would be money transactions. Since data is an input variable for the hash, changing the data will change the hash. Changing the hash will generate a new hash and the block becomes invalid.
- 12. WHAT’S IN A BLOCK? PREVIOUS HASH: The previous hash is the hash of the previous block. Because this is the genesis block, it does not have a previous hash.
- 13. WHAT’S IN A BLOCK? WHAT WE ARE HASHING: The hashing function has the following input variables: block index (0), nonce (0), data (Hi! My name is Ken Brook, and welcome to the boot camp!), previous hash (0). f( index + nonce + data + previous hash ) = hash If any of the input variables change, a new and unique hash will be generated.
- 14. WHAT’S IN A BLOCK? BLOCK HASH: The Block Hash is the hashed output of the input variables. It is impossible to reverse hash this message.
- 15. LETS BUILD A BLOCKCHAIN!
- 16. Now, a blockchain is a collection of blocks. So let’s add another block to our blockchain!
- 17. Mining is the process of finding a valid block
- 18. HERE IS WHERE THE CHAIN HAPPENS
- 19. FULL BLOCKCHAIN
- 20. OK. WHAT’S THE BIG DEAL. WHY IS THIS SPECIAL?
- 21. IMMUTABILITY So let's say we tried to change the message in the previous block. Instead of, hi! My name is “ken brook, and welcome to the boot camp!” We say “hi! My name is ken brook, no boot camp today!”
- 22. • Because every block works off the previous hash, if any input variable in a block changes, the previous hash will also change. • Now, none of the blocks we’ve built up matches. • And because the blocks don’t match, any change will not work. • Because of this simple factor, it’s basically impossible to change anything on the blockchain once it’s committed. IMMUTABILITY
- 24. DECENTRALIZED BLOCKCHAIN NODE 1 NODE 2 NODE 3
- 25. 1PM - 1:50PM // WELCOME & BEGINNERS GUIDE TO BLOCKCHAIN - AND WHY SHOULD ADVERTISING CARE? KEN BROOK CEO METAX PRANEET SHARMA CTO METHOD MEDIA INTELLIGENCE # METAXBOOTCAMP
- 26. # METAXBOOTCAMP 2:15PM - 2:30PM // MICROSOFT & BLOCKCHAIN: A CONVERSATION WITH YORKE RHODES DAN BISGEIER CHIEF INVESTMENT OFFICER MEDIAMATH YORKE RHODES GLOBAL BLOCKCHAIN BUSINESS STRATEGIST MICROSOFT
- 27. # METAXBOOTCAMP 2:30PM - 3:30PM // BLOCKCHAIN & PUBLISHERS – IT'S TIME ROB BEELER CHAIRMAN ADMONSTERS MODERATOR ELISABETH MURRAY SVP, DIGITAL AD OPERATIONS TEN: THE ENTHUSIAST NETWORK KEN BROOK CEO METAX RICHARD BUSH CHIEF PRODUCT & TECH OFFICER NYIAX DEREK NICOL VP OF ADVERTISING TECHNOLOGY CBS INTERACTIVE
- 28. # METAXBOOTCAMP 3:45PM - 4:45PM // BLOCKCHAIN & ADVERTISERS WILL RAND CO-FOUNDER PROGRAMMATIC INTELLIGENCE MODERATOR ANTHONY RACINE LEAD CLIENT DATA ANALYST IDEAS MADE MEASURABLE CHRIS CABLE DIRECTOR OF DATA ANALYTICS & STRATEGIC PLANNING DIAGEO SCOTT MCDONALD PRESIDENT AND CEO ADVERTISING RESEARCH FOUNDATION JUSTIN SCARBOROUGH VP OF CLIENT RESULTS ACCORDANT MEDIA
- 29. TO STAY UP TO DATE ON METAX NEWS, PLEASE VISIT: METAX.IO TO GET IN TOUCH, PLEASE EMAIL: HELLO@METAX.IO FOLLOW US ON TWITTER: @METAXCHAIN #METAXBOOTCAMP THANK YOU!
Editor's Notes
- #19: Same hash
- #24: So let’s say what we change something in block 4 on node one. Same change as before--”no bootcamp today.” Naturally, the chain won’t accept it because it happened on the previous block. But in addition, the other nodes are rejecting the change
- #25: So what do we mean by decentralized. Basically, the database that we’re working with, is hosted on a number of different computers. When we're talking about blockchain, ethereum, or even ad token, this is a protocol that’s stored on hundreds, if not thousands of computers. We call those computers nodes.