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First try to learn how bounties works and what are the things one must do,learn about stakes and how they calculate stakes,later start with small telegram campaigns and later you can upgrade yourself for facebook ,twitter,youtube and article campaign.Patience is the key as you are investing time.
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Usually while mining their are chances that one or more miners get the next block by finding nonce.In that case chains get split and same thing may repeat in finding next block too.But the longest chain will be considered as main chain and the rest other chain which has blocks is considered as Orphan blocks.
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No as bitcoin is completely decentralized and permission less ,tamper proof cryptocurrency which uses technology of blockchain for the transaction.
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Blockchain is basically a network of computers called nodes which all have same history of transactions. So instead of one company or a database which holds all the information, now the information is spread across whole of the network. Whenever a transaction occurs, that is validated by everyone and is put ahead in that history of transactions in that network. And it's tamper proof.
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The reality is merit system has created difficulty for beginners as no one looks much about beginners as a result merit is given to only accounts who are legendary and hero members and in very less instance jr members are getting merits ,my personal opinion though.Neverthless don't worry about merits as it's just a number and don't decide who are you,and don'tworry about TOEFL level of english language what merit donors expect,in my opinion language is just a tool to communicate with each other.So keep contributing never get disappointed.
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HODL in cryptocurrency refers to HOLDING,that means one must HOLD cryptocurrency for long term and not get into any kind of panics.
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So is it impossible to hack double SHA 256 ? because Sha 1 was tamper proof too until someone proved they were wrong.How many years can we expect double SHA256 will be reliable ?.And thanks for providing the link of thread let me have a look at it. It has nothing to do with hacking SHA-256 ( probably by hacking in your post you mean brute force attack ). The kind of attack that this double hash prevents is called length extension attack and it is something different from brute force attack. You can read more about the way this attack is done, for example, here. i got to read it then as i knew only about brute force attack. |
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You don't need to know the details of the SHA-256 algorithm in order to use it. In fact, it is probably better that you not know it because if you know it, you might be tempted to implement it and make a mistake.
I couldn't agree more! I can understand you want to read up on hashing algorithms but you should never try to come up with your one solution. Instead, use a proven implementation (for example from a library) and treat it like a blackbox: you put something in and you will always get a 256 bit return. Ok i got that,so you mean don't worry about XOR gates or anything which is used ,consider it as some function which gives you a output,am i right? |
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So is it impossible to hack double SHA 256 ? because Sha 1 was tamper proof too until someone proved they were wrong.How many years can we expect double SHA256 will be reliable ?.And thanks for providing the link of thread let me have a look at it. |
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If you are looking for detailed information on the SHA-256 algorithm I suggest you read the document on Secure Hash Standard (SHS) here: https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.180-4.pdf That's a 36 page PDF so a bit too long to reproduce here. Regarding your question on double SHA-256 and how it works compared to SHA-256 itself. Double SHA-256 means you hash the value of an input using SHA-256 and you use the result from that as input for another round of SHA-256. So it's basically SHA-256(SHA-256(Message)). It's also stated in the protocol documentation: https://en.bitcoin.it/wiki/Protocol_documentation#HashesHey thank you for providing pdf link, looks like i have to study more about it.  |
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Hi all,
Can someone explain me SHA 256 step by step mathematical operation taking an example,i want to know each step from conversion of word to ASCII code and binary code ,later right shift and all those stuffs till i get a hash.
And i have another question why bitcoin uses double SHA256,and how does double SHA 256 compared to normal SHA256 exactly work?
I want to be a blockchain developer so i need to learn all these from scratch.
Thank you
I think this is what you are looking for: Mining Bitcoin with Pencil and PaperThis video is fun to watch too: https://www.youtube.com/watch?v=y3dqhixzGVoThe double hash is simply a hash of a hash of the data. It provides extra security in certain cases. You don't need to know the details of the SHA-256 algorithm in order to use it. In fact, it is probably better that you not know it because if you know it, you might be tempted to implement it and make a mistake. Thanks for providing the information,it was really fun but my brain got over clocked in the middle haha btw Mining Bitcoin with pencil and paper is it still profitable in 2018 ? Haha  |
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Hi all,
Can someone explain me SHA 256 step by step mathematical operation taking an example,i want to know each step from conversion of word to ASCII code and binary code ,later right shift and all those stuffs till i get a hash.
And i have another question why bitcoin uses double SHA256,and how does double SHA 256 compared to normal SHA256 exactly work?
I want to be a blockchain developer so i need to learn all these from scratch.
Thank you
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Generally i use Mozilla as they are good in terms of privacy,if you are really want to be completely anonymous then i would say their is nothing called 100% anonymity,the closest to anonymity is by using Linux Tails.
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Hiring a bounty manager would help ,he/she uses spreadsheet to have a note of all bounty participants and their stakes.Currently i am participating only under the manager "btcltcdigger' as he don't have any bad remark in the bounty campaigns and no scam projects reported yet
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if you have forgotten password but you have remember few letters of it then it can be Brute forced but not 100% guaranteed.But if you don't have any clue of it ,then i am sorry to say that you might not get back your password.
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Check the team,website ,then read white paper, analyze ,and check if this has any real use case.If you find any real use case think is this required .If you find the answer yes ,then you can go ahead.You may fail but you will get some experience which helps you to forecast good project in future.
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Welcome to Bitcoin Talk, and I hope that we haven't given you the wrong impression about the forum. The forum is really here to promote Bitcoin, and other major crypto currencies, and to help new members to use Bitcoin in their daily lives, or as an investment for the future. Unfortunately, there is a lot of promotion of the forum on Twitbook and other social platforms so beloved by the spammers and scammers, and this has given us a major problem. The flood of economic migrants seem to think that the forum owes them a living if they spam and pollute the boards. They learn nothing, and by constantly keeping their heads down looking for pennies in the gutters, they miss the bright sun in the sky overhead. Probably the first thing to learn is the merit system here. Many new members don't bother to read about it, and keep asking the same questions. This is extremely annoying. I wrote a description of the merit system, and you can read the article here - https://talkmerit.com/the-source/index.php/articles/the-bitcoin-talk-merit-systemIt's on my blog, and you can find more information about my activities as a Bitcoin Talk merit source there. Be careful if you are considering trading Bitcoin, the price is extremely volatile, and it can move 20% or more in an hour. You should do a lot of research before risking any cash. There are some boards here with very experienced traders posting on them, but they can be a bit daunting, and many opinions seem to be wishful thinking, raather than the result of objective research. I personally don't think merit system is really helping to grow for the beginners as people who were already in the forum from long time got "LUCKY" to get into higher rank moreover it's really a lot of struggle for the members who joined recently as no one cares much for new members and hence merits aren't given based on any quality post criteria.We are having a Equality system here rather i would prefer equity as people who were here earlier even with spamming are in position of so called "HERO MEMBER and LEGENDARY".So basically now a days merit and rank is just a number here and don't decide who i am. |
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Read , Analyze , critical thinking , find difference between reality and FOMO or FUD.Ones you invest learn to HODL as day trading is very risky.Jump to new boat only if you have trusted information which works on your favour.
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The amount will decrease as number of participant increase,in Jinbi Campaign they did the same thing and amount decreases after few days
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It would be better to jump off from your rank so that you can get good stakes
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