While there are a number of consensus algorithms that most functional cryptocurrency platforms have adopted over the years, a couple of these algorithms have become more popular than the others.
While the proof of work (PoW) algorithm has been identified to be the very first consensus mechanism integrated into a crypto platform, the proof of stake (PoS) and the delegated proof of stake (DPoS) are two other mechanisms that have been designed as an alternative to PoW. The first move advantage PoW had in the market has not withstood criticism and adjustments to optimize the protocol.
Generally, the PoW system requires users to make use of advanced mining rigs and hardware which will require large computational power. The PoS and the DPoS algorithms unlike PoW requires fewer resources and by design happens to be more eco-friendly and sustainable.
For us to get an idea of how the delegated proof of stake works, it is only right that we have a knowledge of what the PoW and the PoS consensus mechanisms are and how they function.
Proof Of Work
This is the first consensus algorithm to be integrated into a blockchain network. It was used as a way to ensure that the majority of the users on the Bitcoin network did not take total control of the network. It was used on the Bitcoin network to validate transactions and for users to validate these transactions, they have to make use of advanced and expensive hardware mining rigs.
With the high expenses associated with the PoW mining model, many people are restricted from entering the mining pools with any form of efficiency. Thus, power can become concentrated on a PoW network, one of the main concerns for users of the original networks operating with PoW.
This consensus algorithm will require users to solve complex mathematical problems if they are to compete and validate transactions on the network. These mathematical puzzles have been made to be as difficult as possible. This is to ensure that miners do not easily find these blocks. Proof Of Stake
This consensus algorithm was designed to be an alternative to proof of work and the restrictions the PoW model put on user’s ability to be miners. Proof of Stake was discovered in 2012 after most platform developers sought for alternative consensus algorithms that can be used. Unlike the PoW, the proof of stake algorithm requires that miners on the network stake or have their coins locked.
To explain better, for miners who want to mine on the network, they will have to stake a certain amount of coins if they are to successfully mine. This simply means that if a miner owns about 5% of the total coins on a network, then that user would then have the right to mine 5% of all transactions that are carried out on the network. Thus, creating an incentive for users to hold coins instead of the incentive many miners had in the proof of work model to sell their coins to the market quickly after mining them or in more malicious cases, try to attack a weaker proof of work network with a 51% attack. Delegated Proof Of Stake
The Delegated Proof of Stake (DPoS) algorithm was launched in 2014 by Daniel Larimer, a more renown developer within the world of cryptocurrency. He helped pioneer this new model of validation for blockchain technologies. Today, there are a number of crypto platforms that make use of this consensus algorithm and they include Steem, Ark, Bitshares, Lisk, and many other networks today.
DPoS based blockchain networks work in a voting manner where stakeholders on the network will have to outsource their duties to third-parties. It can be said that these stakeholders are able to vote for a few people to help them manage the security of the network. On any of the DPoS based crypto networks, these individuals that are voted to maintain the security of the network for others are referred to as delegates, while those voted to validate transactions on these networks are called "witnesses".
A closer look at this consensus algorithm will point to a resemblance to the PoS algorithms. For example, on any of the DPoS based algorithms, the vote count and worth of each of the users will be determined by the number of coins they have in their possession. While the voting system may vary from one blockchain network to another, one thing is certain - each of the delegates or individuals to be voted for will have to present to others on the network a proposal of what they will accomplish when voted in as either delegates or witnesses. Most of the time, the rewards that are gotten from the validation of blocks by these witnesses are shared proportionally with the various electors. This is just like the PoS except that there is no voting system and that each user will have to represent himself.
DPoS based blockchain networks have their voting systems based on the reputation of the delegate in question. Unlike the traditional voting system, on these blockchain networks, if witnesses do not carry out their duty of validating blocks on the network, they will be expelled and immediately replaced by another. This helps to secure the network from malicious actors. Furthermore, these DPoS based networks adapt which makes them more scalable than the PoW and the PoS algorithms. This is because they elect a few people who do the job for the network. Characteristics Of The Delegated Proof Of Stake Algorithm
While we have discussed what the DPoS consensus algorithm is, it is best that we discuss some of the features or characteristics that set it apart from both the PoS and the PoW. These underlying characteristics apply to the Delegated Proof of Stake algorithm as well. These characteristics include;
- A Voting System - Unlike the other two consensus algorithms, the DPoS algorithm has a voting system. On these networks, users will have to vote for delegates or witnesses that will validate transactions on the network. The votes are weighted according to the number of coins that an individual on the network has. While users do not need to have so many coins to become delegates, they need to have voters that have more coins as their votes can help make them become top tier witnesses.
- System Witnesses - These are those that are chosen by users on the network to validate transactions on their behalf. Depending on each of these networks, the number of witnesses may vary. While these witnesses can block transactions that are being sent, they cannot in any way alter or change the information on each of these transactions. This is because the blockchain technology is immutable.
- NetworkDelegates - This happens to be another set of people on the DPoS based blockchain networks. They are voted by users on the network to help maintain the network. They are elected to oversee the overall performance as well as the entire blockchain protocol. These delegates can propose things on the network. For example, they can propose that the number of witnesses is reduced or increased and users on the network will have to vote either for or against the motion.
As always, the team here at Affil Coin is happy to help where we can. So, if you ever have any questions, stop by the Affil Coin Telegram chat
and talk to a member of our team! Furthermore, if you want to learn more about Delegated Proof of Stake, click here and visit the Affil Coin
For months now, the entire Bitcoin community has been waiting for this great day. This incredible expectation has now surpassed the cryptocurrency world as shown by the explosion of search volume for the term “Bitcoin Halving” on Google.
This Monday, May 11, 2020, Bitcoin third Halving will take place.
A lot has been written about this third Halving. Nevertheless, some people still ask me questions about what the Bitcoin Halving is. To help you get ready, I give you in 5 minutes the keys for understanding everything about this third Bitcoin Halving.
Bitcoin’s Monetary Policy is Predictable and Transparent
Bitcoin supply is finite. There will never be more than 21 million Bitcoins in circulation. This limit is written into Bitcoin’s source code, and it cannot be changed without a consensus within the community.
Concretely, this limit of 21 millions will never change, because it is an incredible strength of Bitcoin.
At the time of this writing, 18,373,937 BTC have already been mined. This means that 87.49% of all Bitcoins have already been created. There are only 12.51% of Bitcoins left that can be created.
Bitcoin is therefore the scarcest invention ever created by man.
Transactions on the Bitcoin network are grouped into blocks. In order to correctly add a block of transactions to the Bitcoin Blockchain, some specific users of the network will have to solve a mathematical puzzle that requires phenomenal computing power.
These particular users are called miners. They put their computing power at the disposal of the network in order to secure the network.
When a miner successfully solves this mathematical puzzle for a given block, that block of transactions is added to the Bitcoin Blockchain. As a reward, the miner, or more generally the pool of miners, receives a Bitcoin reward.
The new Bitcoins are created at that moment.
Bitcoin Halving Reduces the Production of New Bitcoins Over Time
When Satoshi Nakamoto launched the Bitcoin network on January 3, 2009, this reward was 50 BTC. For every 210,000 blocks of transactions validated, this reward is halved in an operation called Halving.
Currently, Bitcoin is at block height 629,942:
Since a Bitcoin Halving takes place every 210,000 blocks mined, this means that there have already been two Halvings so far:
The first took place at block height 210,000 on November 28, 2012. The reward was then decreased from 50 BTC to 25 BTC.
The second took place at block level 420,000 on July 9, 2016. The reward then went from 25 BTC to 12.5 BTC.
Bitcoin third Halving will take place at block height 630,000, in 85 blocks.
On average, a new block is issued every 10 minutes. This gives predictability to the issuance of new Bitcoins. We can therefore estimate that 6 blocks are mined per hour, or a total of 144 blocks per day.
With a current reward of 12.5 BTC per mined block, the daily production of new Bitcoins is 1800 BTC.
At block height 630,000, the third Bitcoin Halving will take place. From that moment on, the reward will be 6.25 BTC. The average daily production of new Bitcoins will then be 900 BTC.
This third Halving will be a historic supply shock that will bring inflation down below 2% to 1.8%.
The date of each Halving cannot be accurately predicted. The reason is simple: the production of the blocks will depend on the computing power available on the Bitcoin network. This computing power is called the Hash Rate.
When the Hash Rate rises sharply, time between production of each block falls below 10 minutes. When the Hash Rate drops, time between production of each block rises above 10 minutes. The average delay between each mined block clearly shows this:
In order to keep the predictability of new block issuance on the Bitcoin network, the difficulty to mine a block is adjusted every 2016 blocks, approximately every 2 weeks.
If the Hash Rate has increased sharply previously, causing the block production time to drop below 10 minutes, the difficulty will increase. If the Hash Rate has previously dropped sharply, the difficulty will decrease.
The evolution of the mining difficulty since the creation of Bitcoin clearly shows that mining a new block has become more and more demanding in terms of computing power:
Bitcoin’s Predictability Provides Its Users With Essential Guarantees
By guaranteeing this predictability, Bitcoin allows its users to know in advance how Bitcoin supply inflation will evolve in the coming Halvings:
At block height 840,000, probably in 2024, the reward will be 3,125 BTC. The daily average production of new Bitcoins will be 450 BTC.
At block height 1,050,000, probably in 2028, the reward will be 1,5625 BTC. The daily average production of new Bitcoins will be 225 BTC.
At block height 1,260,000, probably in 2032, the reward will be 0.78125 BTC. The daily average production of new Bitcoins will be 112.5 BTC.
Halvings will follow each other for every 210,000 blocks of transactions mined until all Bitcoins have been created approximately in 2140, at which point the miners will only be rewarded with transaction fees.
Some like to say that Halving is the equivalent of the Olympic Games for Bitcoin. Halving is a great marketing campaign for Bitcoin every 4 years.
Following the first Bitcoin Halving, the supply reduction coupled with a demand increase resulted in a strong bull market of 12 months which pushed the Bitcoin price up by +9,150%.
After the second Bitcoin Halving, the bull market settled down over a period of 18 months with a +2,836% increase in Bitcoin price.
Each time, Bitcoin entered the following virtuous circle:
At constant demand, Bitcoin price starts to rise.
Increase in demand due to Bitcoin price increase.
Even higher Bitcoin price increase.
Back to step 3.
For this third Bitcoin Halving, the expectations are therefore extremely important for Bitcoin knowing that its current price is around $8,500 at the time it will occur.
After reading this story, I think you are ready for the big day.
In a few hours, [Bitcoin ]1
third Halving will take place, and with all the cards in your hand to understand what it is all about, you can make the best possible decisions in the days and weeks to come
''' Bitcoin Third Halving D-Day: Understand Everything in 5 Minutes Go1dfish undelete link unreddit undelete link
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Recently I have been trying to learn everything there is to learn about bitcoin.
I think that everything ‘old’ that I’ve read has been a huge indicator of what is on the horizon for btc.
It looks like a lot of people were afraid of what could happen to bitcoin if it was hardforked. Would it survive?
And here we are now... even at 3k bitcoin, when you look at old discussions that took place when bitcoin was in the $8 and teens range, hell, look at the attitude people had towards bitcoin when it finally started having monetary value, @ 3k it is doing fantastic. And look at it climbing.
I was reading through an old eBay thread from 2010 or 2011 maybe, I wish I could find it in my browsing history, I can’t any more, and someone tried to pitch eBay accepting bitcoin and they were ridiculed away and heavily rejected for even pitching the idea. And here we are now... eBay announced they’ll start accepting bitcoin last month.
I’m seeking some honest evaluation by anyone reading- what are some ‘threats’ that exist on bitcoin’s horizon? Here are some things that come to mind that I am wondering about-
1) bug in the software that causes a flash crash of the price, or irredeemably wrecks the software. Is that even possible?
2) the people that contribute to the code fuck up or there is some silent code change- is this even possible?