Bitcoin mining on an Apollo Guidance Computer: 10.3 ...

One of the team members, Ken Shirriff, a specialist in reverse engineering, said that they have worked out a code that enabled them to mine Bitcoin on one of the first integrated circuit-based computers that were used by the National Aeronautics and Space Administration (NASA)

One of the team members, Ken Shirriff, a specialist in reverse engineering, said that they have worked out a code that enabled them to mine Bitcoin on one of the first integrated circuit-based computers that were used by the National Aeronautics and Space Administration (NASA) submitted by TheCrypto_Trends to cryptocurrency_world [link] [comments]

Ken Shirriff's blog: Mining Bitcoin with pencil and paper: 0.67 hashes per day

Ken Shirriff's blog: Mining Bitcoin with pencil and paper: 0.67 hashes per day submitted by eeickmeyer to techtalktoday [link] [comments]

Ken Shirriff's blog: Mining Bitcoin with pencil and paper: 0.67 hashes per day

submitted by Mutjake to mutjake [link] [comments]

Ken Shirriff's blog: Mining Bitcoin with pencil and paper: 0.67 hashes per day

Ken Shirriff's blog: Mining Bitcoin with pencil and paper: 0.67 hashes per day submitted by seagray to seagray [link] [comments]

6 Most Weird Techniques Used For Bitcoin Mining So Far

6 Most Weird Techniques Used For Bitcoin Mining So Far

This news comes from https://www.livebitcoinnews.com
Bitcoin continues hitting the news for a variety of reasons. It is the most popular cryptocurrency and with increasing acceptance across industries, more people want to enjoy a piece of the pie.By the end of 2018, the global value of Bitcoin reached 66 billion U.S. dollars.
One of the greatest offshoots of Bitcoin’s growth is Bitcoin mining. It is essential for the survival of the cryptocurrency as it deals with creating new bitcoins. It is one of the most popular activities with techies seeking to cash in on the Bitcoin craze. The idea of mining cryptocurrency might sound farfetched, but the investments going into this activity are enormous.
Success as a Bitcoin Miner
The hardware and software required for Bitcoin mining are expensive and this has seen investors injecting millions of dollars into their projects. Miners require specialized computers and software to get the job done. There’s also the high cost of electricity and bandwidth which makes it difficult for everyone to join the fray.
How does Bitcoin mining work? If you want to succeed in Bitcoin mining, you need dedicated processing power, a lot of energy supply, cutting-edge ASIC mining hardware, and a lot of time. In a slow global economy, Bitcoin mining remains a viable income-generating activity. You enjoy insulation from inflation and you don’t have to worry about capital controls.
As the interest around Bitcoin continues, it is interesting to note some of the most brazen techniques Bitcoin miners have tried so far.
1.Using the Apollo Guidance Computer (AGC)
The creation of the Apollo Guidance Computer (AGC) was solely to guide U.S rockets to the moon. It was one of the earliest computers made and it was huge and slow. With computing power in high demand for Bitcoin mining, a restoration team consisting of Ken Shirriff, Carl Claunch, Marc Verdiell and Mike Stewart tried reviving the AGCA for this task. The AGC team was however disappointed by the results. At a hash rate of 10.3 seconds per Bitcoin hash, the team discovered it would take billions of years to mine a Bitcoin block.
2.Mobile Data Mining With Waste Gas
The idea is to install Bitcoin data-mining centers at oil rigs which has a need to vent gas. The data center developers argue that this would generate more revenue than selling fuel. It is also an easier way to reduce carbon print. The Ohmm® mining data center is an alluring proposition and one most miners would pick up.
3.Nuclear Reactors
A report on Forbes says Bitcoin miners harnessing power in a nuclear reactor compromised one of these sensitive installations in Ukraine. Nuclear reactors produce excess energy due to their sheer size. Using this exceeds energy on a profitable venture such as mining bitcoins is a great idea but only with a clear framework.
4.Mosque Data Mining
Bitcoin miners will go to any lengths to find the energy to power their supercomputers. A mosque is an unlikely palace for such an activity but due to a government subsidy of free electricity, Iranian Bitcoin miners now work from these holy places. A government crackdown has not managed to kill the practice.
5.Cryptojackers
While most online hackers want to steal your identity or harm you, crypto-jackers are a different breed. These are hackers interested in the computing power of your network. These computer geeks are so suave that some even hacked the Tesla company cloud and tapped computing power for Bitcoin mining.
6.Leveraging Bitcoin Mining Byproducts
Bitcoin mining systems generate a lot of heat and creative miners now use this to do other things. Some innovative miners heat their homes using this byproduct while others use the same for rum making among other tasks.
submitted by Moustache_Group to BitcoinMining [link] [comments]

NASA’s Historic Apollo Program Computer is Mining Bitcoin

A computer from NASA’s historic Apollo program, which flew onboard the Apollo spacecraft during its trip to the Moon, has been reprogrammed to mine bitcoin.

The Apollo Guidance Computer (AGC) was one of several technological breakthroughs for its time that allowed NASA to send a manned mission into space. The AGC provided guidance, navigation and onboard control for the Apollo flights to the moon, and was one of the first computers to use integrated circuits.

Ken Shirriff, a member of a group of computer historians, published his experience restoring the AGC in a series of posts, including his attempt to have the machine mine bitcoin.
Despite coming from a time when the average computer could fill most of a room, Shirriff says the AGC is under a cubic foot in size and weighs less than 70 pounds.

https://www.cryptoglobe.com/latest/2019/07/nasas-historic-apollo-program-computer-is-mining-bitcoin/
submitted by FastSellerService to BitcoinInfo [link] [comments]

ELI5 SHA-2 cryptographic hash functions and just hash functions in general?

I was trying to learn how bitcoin is mined by looking at the "Mining Bitcoin with pencil and paper" video by Ken Shirriff, and I'm trying to wrap my mind around SHA-2 cryptographic hash functions. How does this work exactly?
I am reading this: http://www.cs.hmc.edu/~geoff/classes/hmc.cs070.200101/homework10/hashfuncs.html
and what I can understand from this is that if you wanted to send a file with sensitive data
Let's say the data is
 a c f 
you could assign a=5, c=2 and, f=9
you would then send
 5 2 9 
and the party receiving the data would then see the three numbers and be able to see you said "a c f"
Is this correct? I probably have extremely over simplified this. Could anyone help?
submitted by theguywithacomputer to compsci [link] [comments]

TIL that it is theoretically possible to mine new Bitcoins by hand with pencil and paper. Technology is a little bit faster, though - about a quintillion times.

This is the best tl;dr I could make, original reduced by 91%. (I'm a bot)
The idea is that Bitcoin miners group a bunch of Bitcoin transactions into a block, then repeatedly perform a cryptographic operation called hashing zillions of times until someone finds a special extremely rare hash value.
The SHA-256 hash algorithm used by Bitcoin The SHA-256 hash algorithm takes input blocks of 512 bits, combines the data cryptographically, and generates a 256-bit output.
Manual mining The video below shows how the SHA-256 hashing steps described above can be performed with pencil and paper.
At this rate, hashing a full Bitcoin block would take 1.49 days, for a hash rate of 0.67 hashes per day.
In comparison, current Bitcoin mining hardware does several terahashes per second, about a quintillion times faster than my manual hashing.
Thus, mining can reuse the result of hashing the first 512 bits, and hashing a Bitcoin block typically only requires 128 rounds.
Summary Source | FAQ | Feedback | Top keywords: hash#1 mine#2 block#3 Bitcoin#4 bit#5
Post found in /todayilearned, /Bitcoin, /Bitcoin, /thenewsrightnow, /DailyTechNewsShow, /bprogramming, /sidj2025blog, /CryptocurrencySA, /math, /Bitcoin, /openbtc, /btc, /BitcoinAll, /blockchainu, /CryptoCurrency, /techtalktoday, /programming, /ReverseEngineering, /crypto, /technology, /netsec, /Bitcoin, /dogecoin, /seagray, /BitcoinMining, /reddCoin, /mutjake, /esbio, /realtech, /hackernews and /justneckbeardthings.
NOTICE: This thread is for discussing the submission topic. Please do not discuss the concept of the autotldr bot here.
submitted by autotldr to autotldr [link] [comments]

Mining Bitcoin with pencil and paper: 0.67 hashes per day

This is the best tl;dr I could make, original reduced by 91%. (I'm a bot)
The idea is that Bitcoin miners group a bunch of Bitcoin transactions into a block, then repeatedly perform a cryptographic operation called hashing zillions of times until someone finds a special extremely rare hash value.
The SHA-256 hash algorithm used by Bitcoin The SHA-256 hash algorithm takes input blocks of 512 bits, combines the data cryptographically, and generates a 256-bit output.
Manual mining The video below shows how the SHA-256 hashing steps described above can be performed with pencil and paper.
At this rate, hashing a full Bitcoin block would take 1.49 days, for a hash rate of 0.67 hashes per day.
In comparison, current Bitcoin mining hardware does several terahashes per second, about a quintillion times faster than my manual hashing.
Thus, mining can reuse the result of hashing the first 512 bits, and hashing a Bitcoin block typically only requires 128 rounds.
Summary Source | FAQ | Feedback | Top keywords: hash#1 mine#2 block#3 Bitcoin#4 bit#5
Post found in /Bitcoin, /CryptocurrencySA, /math, /Bitcoin, /openbtc, /btc, /BitcoinAll, /blockchainu, /CryptoCurrency, /techtalktoday, /programming, /ReverseEngineering, /crypto, /technology, /netsec, /Bitcoin, /dogecoin, /seagray, /BitcoinMining, /reddCoin, /mutjake, /esbio, /realtech, /hackernews and /justneckbeardthings.
NOTICE: This thread is for discussing the submission topic. Please do not discuss the concept of the autotldr bot here.
submitted by autotldr to autotldr [link] [comments]

Newbie question about mining algorithm

I have been reading up on bitcoin mining, but haven't found a really indepth explanation of mining, except for the great blog posts by Ken Shirriff. After reading that, I still had a question about the mining algorithm.
From a high level is the following correct?
1) Get all the new transactions that haven't been mined into a block yet 2) Get every combination of nonce, and try hashing it 3) When every combination of nonce is attempted and no hash is found, then add the newest transaction into the block and try again. 4) Keep adding new transactions into the block and attempting all combinations of nonces, until a hash is successfully discovered.
Is this a good high-level explanation of basically what bitcoin mining is?
submitted by steve4699 to BitcoinMining [link] [comments]

Mining: what can be changed while trying to reach the target?

Hi. I just read "Bitcoin mining the hard way" by Ken Shirriffs and I have some questions about what can be changed in the coinbase transaction and about the timestamp and new transactions.
submitted by Andrylight to Bitcoin [link] [comments]

With Ken's blog on mining bitcoin with pencil, human mining pools have spawned up

coinion has the best satirical article.
http://www.coinion.com/2013/12/11/child-labor-bitcoin-mines-exposed/
Ken, looks what you had done! Think of the children! kenshirriff
picture of human mining pool: http://i1.wp.com/coinion.com/wp-content/uploads/2013/12/btcguild.jpg
For context:
Ken Shirriff's excellent blog on mining bitcoin with pencil and paper: http://www.righto.com/2014/09/mining-bitcoin-with-pencil-and-paper.html
ps. wish coinion has more articles. i can't stop laughing while reading that article about human mining pool.
EDIT: of course this is a joke. (in case some mainstream media took this and run with it)
submitted by welikecoin to Bitcoin [link] [comments]

PSP Bitcoin Miner Bitcoin - YouTube Ken Shirriff - YouTube Get Rich From Bitcoin Mining Bitcoin Miner Deutsch - Wie Entstehen Bitcoins Und Kann Ich Sie Selbst Herstellen

Ken Shirriff is well-known in the bitcoin community for his work on getting the bitcoin symbol added to Unicode. Shirriff also has a popular blog where writes about his projects and how he has mined bitcoins using classic devices from the past. Just recently Shirriff has been working on a Xerox Alto restoration and managed to get the seventies built computer to mine bitcoins at 1.5 hashes ... Mining requires a task that is very difficult to perform, but easy to verify. Bitcoin mining uses cryptography, with a hash function called double SHA-256. A hash takes a chunk of data as input and shrinks it down into a smaller hash value (in this case 256 bits). With a cryptographic hash, there's no way to get a hash value you want without trying a whole lot of inputs. But once you find an ... Der Youtuber Ken Shirriff hat eine Runde des Algorithmus händisch berechnet und dafür 16:45 Minuten gebraucht. Für die Berechnung eines Bitcoin Hashes sind 128 Runden vonnöten, das sind rund 36 Stunden Kopfakrobatik. Ken Shirriff hat somit eine Hashrate von 0,000007716 Hashes/Sekunde. Das gesamte Bitcoinnetzwerk berechnet momentan rund 65 ... Bitcoin mining is based on cryptography, with a "hash function" that converts a block of data into an essentially random hash value. The hash algorithm is designed to be simple to implement, but cryptographically secure: there's no known short cut to finding a successful hash other than trying zillions of hashes through brute force. In particular, Bitcoin uses a standard cryptographic hash ... The Bitcoin Mining Rig That Already Mooned. Ken Shirriff is a man with a passion, and that passion lies in the restoration of vintage computer hardware. For his latest project, Shirriff got hold of a guidance computer from the Apollo space mission. Then got it working again; the only working example, according to him.

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PSP Bitcoin Miner

Bi•Fury - Fastest USB ASIC Bitcoin Miner in the world! - Duration: 1:03. FP IT Management 277,140 views. 1:03 . Mining Bitcoin with Excel - Duration: 7:17. Knowledge 182,537 views. 7:17. STEAM ... http://miningbitcoins.net/ Get Rich From Bitcoin Mining If you want a step-by-step manual that shows you exactly what to do in order to get rich from mining ... This is the video showing the final project of EC551 in Spring semester,2015. This project, Bitcoin mining, is done by group "Bitminers". The group members a... ★ RollerCoin in a Nutshell ★ RollerCoin is an online, virtual bitcoin mining game where you compete against your friends to earn real bitcoins. It takes the concept of bitcoin mining, but ... Shirrif, Ken. "Mining Bitcoin with Pencil and Paper: 0.67 Hashes per Day." Mining Bitcoin with Pencil and Paper: 0.67 Hashes per Day. Ken Shirriff's Blog, n.d. Web. 23 Oct. 2015. Shirriff, Ken ...

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