Showing posts with label bitcoin. Show all posts
Showing posts with label bitcoin. Show all posts

Friday, December 23, 2022

Ledger: Working of Blockchain Smartcontract - Article

Ledger: Working of Blockchain Smartcontract - Article

Working of Blockchain Smartcontract Ledger

A Blockchain Smartcontract is just a digital contract that has blockchain security code. It contains certain instructions and permissions defined in code that need to happen in a specific order in order to for the smart contract's terms to be accepted. 


In the contract, deadlines may be included due to time restrictions. Every smart contract has a blockchain address. The contract may be interacted with by using its address provided the contract has been broadcasted on the network.


Idea behind smart contracts:


Logic of the Blockchain Smartcontract is pretty simple. They are executed on a basis of simple programming logic, IF-THEN condition.


Example: 

  • IF you send object A, THEN the sum (of money, in cryptocurrency) will be transferred to you.
  • IF you transfer a certain amount of digital assets (cryptocurrency, for example, ether, bitcoin), THEN the A object will be transferred to you.
  • IF I finish the work, THEN the digital assets mentioned in the contract will be transferred to me.

Note: The WHEN constraint can be added to include the time factor in the smart contracts. It can be seen that these smart contracts help set conditions that have to be fulfilled for the terms of the contract agreement to be executed. There is no limit on how much IF or THEN you can include in your intelligent contract. [0]


Operation of a blockchain smartcontract: 

Predefined Contract: Multiple parties identify the cooperative opportunity and desired outcomes and agreements could include business processes, asset swaps, etc.


Events: 

Set conditions: Smart contracts could be initiated by parties themselves or when certain conditions are met like financial market indices, events like GPS locations, etc.


Code business logic: A computer program is written that will be executed automatically when the conditional parameters are met.


Encryption and blockchain technology: Encryption provides secure authentication and transfer of messages between parties relating to smart contracts.


Execution and Settlement: In blockchain iteration, whenever consensus is reached between the parties regarding authentication and verification then the code is executed and the outcomes are memorialized for compliance and verification.


Blockchain updates: After smart contracts are executed, all the nodes on the network update their digital ledger to reflect the new state. Once the record is posted and verified on the blockchain network, it cannot be modified, it is in append mode only.



Cited Source:

 [0] - https://www.geeksforgeeks.org/smart-contracts-in-blockchain/

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Monday, December 19, 2022

Why Digital Ledger of All Cryptocurrency Transactions are More Popular than normal financial ledger?

Why Digital Ledger of All Cryptocurrency Transactions are More Popular than normal financial ledger?

A digital ledger is a type of ledger that is used to record financial transactions in a digital format. Unlike a traditional paper ledger, a digital ledger can be updated and accessed in real-time, making it a more efficient and secure way to track financial transactions.


Cryptocurrency transactions are often recorded on a digital ledger known as a blockchain. A blockchain is a de-centralized and public ledger of all cryptocurrency transactions. Blockchains are secure by design and are an example of a Distributed Ledger Technology (DLT).


Cryptocurrencies are popular because they offer a number of advantages over traditional fiat currencies. For one, cryptocurrencies are digital and global, making them more convenient and accessible than fiat currencies. They are also secure and transparent, thanks to the blockchain technology that powers them.


Digital ledgers are more popular than normal financial ledgers for a number of reasons. First, digital ledgers are more efficient and secure than traditional paper ledgers. Second, digital ledgers offer more transparency and accessibility than traditional financial ledgers. Finally, digital ledgers are more versatile and can be used for a variety of different applications.


Why Digital Ledger of All Cryptocurrency Transactions are More Popular than normal financial ledger?


What is Distributed Ledger Technology (DLT)?


A computerised system for tracking asset transactions called distributed ledger technology (DLT) allows for the simultaneous recording of transactions and their associated information in numerous locations. Distributed ledgers don't have a central data store or management features, in contrast to conventional databases.


A distributed ledger generates a record of every item and establishes a consensus as to its authenticity since each node processes and validates every item. Both static data, like that in a registry, and dynamic data, such that in financial transactions, can be recorded on a distributed ledger.


Additionally, the technology generates an immutable database, meaning that information that has been stored cannot be removed and that any revisions are preserved permanently for posterity.


Distributed ledger technology examples:


There are several forms of distributed ledger technology in use today.


  • The most well-known kind of DLT is blockchain, which groups transactions into blocks that are chained together and then broadcasts them to the network's nodes. Bitcoin and other cryptocurrencies are run by it.

  • A different DLT called Tangle is targeted at IoT environments. The Tangle EE Working Group, which was established by the Eclipse Foundation and the IOTA Foundation, calls Tangle "a permission-less, fee-less, scalable distributed ledger, designed to support trustworthy data and value transmission between humans and machines."

The distributed ledger technologies Corda, Ethereum, and Hyperledger Fabric are also well-known.





Why Distributed Ledger Technology is Important?


Improved Record Keeping: By altering some of the principles of how businesses gather and share the data that goes into their ledgers, distributed ledger technology can significantly improve record-keeping.


Point of Control & Transparency: Consider Central Ledger, every place that provides data to the ledger has the potential to be a source of fraud or inaccuracies, making the process vulnerable to errors and manipulation. The accuracy of the data arriving from the other contributors cannot be effectively verified by any of the other participants who are providing data to the central ledger. With Distributed Ledger, real-time data sharing is made possible ensuring that the ledger is constantly up to date. In fact, each participating node can see these changes, it also promotes transparency.


Secure: It is inherently more secure since it does away with centralised ledgers' single point of failure and single target for hackers and manipulation.


Potential to Speed up transactions: Because there is no longer a need to go via a central authority or middleman, distributed ledger technology offers the potential to speed up transactions. DLT could also lower transaction costs in a similar manner. 


However, there was one drawback the DLTs have been demonstrated to perform worse in some networking situations than centralised ledgers due to the high computational demands of running the highly decentralised verification process and disseminating copies of the ledger.


What are the few benefits of Distributed Ledger?


The use of distributed ledger technology in financial transactions has drawn a lot of early attention. That makes sense given that the bitcoin cryptocurrency became widely used while also demonstrating the viability of DLT. Early adopters of DLTs included banks and other financial institutions.


Digital ledger technology (DLT) supporters assert that businesses outside of finance can also use them. Governmental organisations are investigating how to document transactions like real estate title transfers using technology. DLT is being tested by healthcare organisations to enable a more effective method of updating patient records. For retaining supply chain data, many firms are testing DLT. And the legal industry is investigating how it can process and execute legal papers using DLT.


Additionally, according to experts, technology helps people gain better control over their personal information by enabling them to selectively disclose portions of their data as needed, restrict access to their records, and set temporal limits on how long information is accessible to third parties.


Digital ledgers, according to supporters, can also aid in keeping better track of intellectual property rights and ownership for goods like art, music, and movies, among other things.




Although DLT adoption is still in its early phases, the technology has already demonstrated in numerous instances its capacity to provide consumers with advantages, such as the following:

  • High Visibility & Reliability
  • Transparency Over Data Contributed to the Distributed Ledger
  • Lower Operational Costs 
  • No Central Authority
  • Faster Transaction Speeds
  • Reduced Risks of Fraudulent Activity, Tampering and Manipulation
  • High Level of Security

How the Blockchain and DLT relate and differ?

The terms distributed ledger technology and blockchain are often and even interchangeably used. They are not, however, the same.


Simply described, blockchain is a sort of distributed ledger technology, however not every distributed ledger technology employs blockchain technology.


This is unsurprising given how quickly interest in the technologies grew following the introduction of bitcoin and how interchangeable the technologies can be in actual application.


Using cryptography, both are used to establish decentralised ledgers. Both generate immutable records with time stamps. And both are thought to be practically unhackable.


Both can be public, allowing anybody to use them, as bitcoin is, or permissioned (private), limiting access to authorised users who agree to specified usage guidelines.


The main distinction is that blockchain uses blocks of data that are connected together to build the distributed ledger, as the name implies. However, DLT encompasses systems that establish a distributed ledger using various design concepts. The technology does not need to arrange its data in blocks to be deemed a DLT.


Conclusion:


It is unclear whether distributed ledger technologies, such as blockchain, will transform how governments, institutions, and industries operate.


Experts in this field advocate DLT as a critical technology that has the potential to not only improve existing processes but also to spark imaginative new applications.


Furthermore, they regard DLT as a component of the "internet of value," in which transactions take place in real time across worldwide networks. Indeed, digital ledger technology exists only because the internet, which enables it, is so widespread.


However, analysts anticipate that DLT adoption will follow the normal technology curve, with a few leaders out in front, followed by rapid followers, and finally by laggards. They also mention that enterprises encounter difficulties when it comes to deploying, growing, and operational-izing DLT.

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Sunday, December 18, 2022

Ledger: The Ultimate Guide to Blockchain Articles and How They Can be Used? - Article

Ledger: The Ultimate Guide to Blockchain Articles and How They Can be Used? - Article

In a world where we are constantly inundated with information, it can be difficult to sift through everything and find the most reliable sources. With the advent of blockchain technology, however, we now have a way to verify the authenticity of information. A blockchain article is a piece of writing that is verified and authenticated through the use of blockchain technology. In other words, it is a way to ensure that the information in an article is accurate and trustworthy. If you’re looking for reliable sources of information, then blockchain articles are a great place to start. In this guide, we will explore what blockchain articles are and how they can be used.

The Ultimate Guide to Blockchain Articles and How They Can be Used?

What is a blockchain?

A blockchain is a digital ledger of all cryptocurrency transactions. It is constantly growing as "completed" blocks are added to it with a new set of recordings. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Bitcoin nodes use the block chain to differentiate legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

A blockchain article is an article that covers the basics of what a blockchain is and how it can be used. Blockchain articles often include a section on how the technology works, its potential applications, and it's advantages over traditional databases.

What are the characteristics of a blockchain?

A blockchain is a digital ledger of all cryptocurrency transactions. It is constantly growing as "completed" blocks are added to it with a new set of recordings. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Bitcoin nodes use the block chain to differentiate legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

Characteristics of a blockchain:

1. Decentralized: A global network of computers uses Blockchain technology to jointly manage the database that records Bitcoin transactions. That is, Blockchain is not managed by any one central authority.

2. Secure: Cryptography secures the interactions between users and ensures that only authorized changes can be made to the data.

3. Transparent: All users can view all transaction data on the Blockchain platform at any time. However, user identities are hidden behind their digital signature or "public key." This makes it difficult for anyone to manipulate or tamper with the data without being detected.

4. Fast and efficient: Transactions are recorded in near real-time and can be confirmed within minutes. This is much faster than traditional banking systems which often take days or even weeks to confirm payments.

5. Immutable: Once a transaction is recorded on the Blockchain, it cannot be changed or deleted (although its associated metadata, such as timestamp, can be). This creates a permanent record of all transactions that cannot be altered retroactively without changing

How do blockchains work?

Blockchains are essentially digital ledgers that keep track of all transactions that take place within a network. In order to do this, each transaction is recorded as a ‘block’ and added to the ledger in chronological order. This forms a ‘chain’ of blocks (hence the name blockchain), with each block containing a unique code that allows it to be identified.

This code, known as a ‘hash’, is generated using complex algorithms and serves as a fingerprint for the block. Importantly, it also links the block to the one that came before it in the chain. This creates a tamper-proof record of all transactions that can be verified by anyone with access to the network.

As well as tracking financial transactions, blockchains can also be used to store other types of data such as medical records or voting results. The potential applications of this technology are limitless and are only now starting to be explored.

What are the benefits of a blockchain?

A blockchain is a digital ledger of all cryptocurrency transactions. It is constantly growing as "completed" blocks are added to it with a new set of recordings. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. Bitcoin nodes use the block chain to differentiate legitimate Bitcoin transactions from attempts to re-spend coins that have already been spent elsewhere.

The main benefit of blockchain technology is that it allows cryptocurrency transactions to be verified without the need for a central authority. This means that no single entity can control or manipulate the currency. Transactions are also fast and cheap, as there is no need for banks or other middlemen. Blockchain technology is also very secure, as each transaction is verified by multiple computers on the network.

Benefits of blockchain technology

What are some real-world applications of blockchains?

Blockchains are being used more and more in the real world as their potential is realized. Some real-world applications of blockchains include:

-Trading platforms: Blockchains can be used to create de-centralized trading platforms that are not subject to the whims of central authorities.

-Identity management: Blockchains can be used to create secure digital identities that cannot be lost or stolen.

-Supply chain management: Blockchains can be used to track the movement of goods and ensure that they are not counterfeit or otherwise tampered with.

-Data management: Blockchains can be used to store data securely and immutably, ensuring that it cannot be altered or deleted.

Are there any downside to blockchains?

Yes, there are some potential downsides to blockchain technology that should be considered. These include:

-The possibility of 51% attacks: If a single entity or group controls more than half of the computing power on a network, they could theoretically launch a "51% attack" and take control of the entire network. This could lead to double-spending, fraud, and other malicious activity.

-Scalability issues: Blockchain networks can potentially become very large and unwieldy, which could make them slow and difficult to use.

-Governance issues: Who will make decisions about how a blockchain network is run? And how will those decisions be made? These are important questions that need to be addressed.

-Security concerns: Hackers have already shown that they can exploit vulnerabilities in blockchain systems. As the technology develops, it's important to make sure that these systems are secure.

Conclusion

We hope that this guide to blockchain articles has given you some useful insights into how they can be used. Blockchain technology is still in its early stages, but it has the potential to revolution-ize many industries. With that said, it is important to stay up-to-date on all the latest news and developments in the space. By reading blockchain articles, you can do just that. So what are you waiting for? Start reading!

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