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The purpose of the author João Guilherme Lyra, in his book "Blockchain and Decentralized Organizations", is to clarify the operation of the technology behind Bitcoin, the blockchain, and talk about the new organizational forms that come with it.

Bitcoin is a decentralized cryptocurrency, meaning it does not require third parties to function. This means that you do not need banks, large corporations or governments to move your money.

Bitcoin emerged over ten years ago (2008), based on a decentralized network, created by Satoshi Nakamoto, named blockchain.

Going back in time, in the 2008 subprime crisis, far from the highlights of the economic news, Satoshi Nakamoto published an article that had a new proposal for economic transfers over the internet.

This article was named "Bitcoin: A Peer-to-Peer Electronic Cash System". The proposal was to eliminate a "trusted third party" who had the role of validating operations.

The blockchain was what allowed the revolution of the bitcoin value transfer model. It's worth mentioning that these digital assets enable new social arrangements and are capable of generating economic value for society.

Are you curious? So continue reading our summary and be surprised at how this innovative technology works.

About the book "Blockchain and Decentralized Organizations"

"Blockchain and Decentralized Organizations", launched in 2019 and written by João Guilherme Lyra, is a book that seeks to clarify how blockchain technology works.

The work has 128 pages that are divided into seven chapters, which will make you understand why you no longer need another reliable individual to perform the transactions you make with your money.

João Guilherme Lyra is an administrator, postgraduate in Management and Marketing from ESPM. He also holds a master's degree in Engineering from UFF, with an emphasis on Management System. And also, professional experience in university teaching and decentralized organizations.

The book "Blockchain and Decentralized Organizations" it is recommended for professionals and students from a wide range of fields, including entrepreneurs, economists, administrators, lawyers, programmers and people who want to know more about cryptocurrencies.

Main ideas of the book "Blockchain and Decentralized Organizations"

The main ideas fostered in this book are:

The blockchain was what allowed Bitcoin to revolutionize the way it moves its money;

The Bitcoin has made it possible to economically transact between two people without the need for a third party;

The idea associated with blockchain is trust and not money.

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One of the main highlights for the Bitcoin system goes to solving the "Byzantine Generals Problem", which was an unsolved problem, even before Nakamoto's proposal.

João Guilherme Lyra describes the "Byzantine Generals Problem" as follows:

"Generals, each on top of mountains, prepare for a joint attack at the same time. How could the generals send messengers informing the time without being captured by their enemies? And even if the messengers could escape their enemies, how would the generals know that the message was received?"

If we look at the internet environment, that is exactly what happens. The internet is insecure and treacherous.

Now we can understand Nakamoto's solution:

No intermediary is required to perform peer-to-peer (P2P) transactions;

Encryption of records makes them immutable;

Combining encryption with the timestamp creates a progressive chain of transactions;

Because all transactions are distributed to each user, validations are made by all of them. The update is done by the users themselves, the ledgers.

A blockchain has several components, including:

Although many, these are not all components of blockchains. In this summary of "Blockchain and Decentralised Organizations", we'll talk about just a few:

Network and Nodes: "A peer-to-peer network propagates transactions and blocks to each bitcoin node in the network. There are a few types of nodes in a network: wallet, miner, full node, and network router. All nodes may include other features";

Token: "Unit of exchange of a blockchain that can assume different functions: votes, records, certificate, utility, property rights, assets, currency, and identities. Often a token assumes more than one of these features and is called a hybrid";

Cryptographic hash function: "It is used to create addresses, private keys, Merkle tree blocks, timestamp, but is generally used to refer to the transaction records of a blockchain. A transaction is made from one address to another, where the issuer signs the transaction with its unique private key and adds the value of tokens to be transferred";

Timestamp: "adds hashes to the time and date, publishing the information widely as well as in a newspaper. The stamp proves that the data must obviously have existed at that time for it to be hashed. Each stamp includes the previous stamp in its hash, forming a chain, with each additional stamp reinforcing the previous ones";

Ledger or complete nodes: "All transactions in a blockchain are sent to network users, who count the transactions in their individual transaction records, the ledgers. This ledger, as it becomes public and shared, stays current through blockchains. Transactions that are not recognized by the block users ledgers are not valid";

Block: "A block comprises multiple transactions. Blocks are a grouping of time-stamped transactions with a fingerprint that references the previous block. Valid blocks are added to a blockchain through network consensus. A transaction is valid by the nodes is replicated to a forming block and is confirmed when that block is also recognized as valid by the nodes".

Blockchain, or block chain, is a well-defined block union, where everyone guarantees the validity of transactions. This defines the antecedents of asset control and provides an invariable time calculation for operations.

"The most important fact is that transactions are propagated, validated and recognized between nodes of the system."

Now if you want to know more about investing, we have "The Zurich Axioms: The Rules of Risk and Reward Used by Generations of Swiss Bankers". Max Gunther teaches the twelve rules, "axioms", which were used by Swiss investors in various areas. These rules are a summary of how the Swiss have become the smartest gamblers in the world.

"The Intelligent Investor" is a classic business book, hailed as "by far the best investment book ever written" by one of the richest guys in the world, Warren Buffet. The author Benjamin Graham explains how to invest in stocks and the characteristics of an investor who knows how to play the stock market: discipline and consistency.

Finally, Fernando Ulrich, in his book "Bitcoin: The Digital Age Currency", shows how digital currencies are a new way to generate income, increase profitability and the advantages that a free and independent currency can offer its interlocutors.

Okay, but how can I apply this to my life?

The annual survey examining trust in entities in 28 countries, Edelman Trust Barometer, shows that 57% of the population does not believe in governments, but this is the lowest rate among all the institutions evaluated.

Looking specifically at Brazil, the index reveals that 72% of people do not trust the government. On the other hand, most of them credit the government with driving economic progress.

"Almost every business transaction has an element of trust in it; certainly, any transaction conducted over a period of time. It can be plausibly argued that much of the economic backwardness in the world can be explained by a lack of mutual trust."

Believing in new organizations and trusting that you can have shared trust, that you can control the management of your capital, is certainly a radical transformation in many people's minds.

Finally, the author João Guilherme Lyra in his book "Blockchain and Decentralized Organizations" invites us:

"Set your own clock to build a new time, because crypto-space is a collective and distributed construction!"

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Blockchain and Decentralised Organizations - João Guilherme Lyra.pdf

Understand why Bitcoin has revolutionized the way we conduct economic transactions between two individuals without the need for a third party. Learn about the technology behind digital currency and its impacts on our lives.

Blockchain and Decentralized Organizations  - João Guilherme Lyra

Book Summary Blockchain and Decentralized Organizations, PDF

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