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What precisely does the commonly reported network hash rate refer to?
Hash rate : Algebraic EquationWhat is the difference between kH/s, MH/s, and GH/s?Hash rate for litecoind is way below the one I get for bitcoind, is this normal?Why do we need a mining speed above 4.3Ghash/s?What does the mining difficulty number really mean?How is hash rate of mining hardware calculatedHow can someone mine bitcoins at billions or trillions of hashes per second when the nonce is only 2^32 in size?How is Ethash a 'memory hard' algorithm if it utilizes peak GPU memory bandwidth?Hash rate : Algebraic Equation
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Specifically, does it refer to SHA hashes per second, or does it refer to nonce-iterations per second, because to check a nonce requires the application of SHA twice.
hashpower
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
add a comment |
Specifically, does it refer to SHA hashes per second, or does it refer to nonce-iterations per second, because to check a nonce requires the application of SHA twice.
hashpower
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
2
Double SHA256's per second.
– MCCCS
8 hours ago
add a comment |
Specifically, does it refer to SHA hashes per second, or does it refer to nonce-iterations per second, because to check a nonce requires the application of SHA twice.
hashpower
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
Specifically, does it refer to SHA hashes per second, or does it refer to nonce-iterations per second, because to check a nonce requires the application of SHA twice.
hashpower
hashpower
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
asked 8 hours ago
Brad ThomasBrad Thomas
2191 silver badge11 bronze badges
2191 silver badge11 bronze badges
2
Double SHA256's per second.
– MCCCS
8 hours ago
add a comment |
2
Double SHA256's per second.
– MCCCS
8 hours ago
2
2
Double SHA256's per second.
– MCCCS
8 hours ago
Double SHA256's per second.
– MCCCS
8 hours ago
add a comment |
2 Answers
2
active
oldest
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The number reported is an estimation of the number of block headers iterated through by all miners on the network.
This means it refers to double-SHA256 hashes performed, not broken down to individual SHA256 operations. This makes the most sense, because even in the very early days (2010, perhaps before), no full SHA256 instances were being computed. Several optimizations let you skip parts of the computation.
It is an approximation, because the actual hash rate is not observable. It can be computed by looking at the created blocks on the network, and treating each as (2^256 / target) worth of attempts (so approximately 4.3 billion hashes per difficulty per block). That is the expected number of necessary hashes.
By looking at the blocks, another inaccuracy is introduced: only blocks that end up in the main chain are counted. Some blocks end up on temporary forks because another miner produces another nearly simultaneous competing block that wins. This is only a fraction of a percent today, but it does waste a small amount of hashrate, which also ends up not being counted.
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
add a comment |
Hash Rate
The hash rate is the measuring unit of the processing power of the Bitcoin network. The Bitcoin network must make intensive mathematical operations for security purposes. When the network reached a hash rate of 10 Th/s, it meant it could make 10 trillion calculations per second. Source
answered 8 hours ago
yahihebyahiheb
31 bronze badge
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yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
add a comment |
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2 Answers
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2 Answers
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The number reported is an estimation of the number of block headers iterated through by all miners on the network.
This means it refers to double-SHA256 hashes performed, not broken down to individual SHA256 operations. This makes the most sense, because even in the very early days (2010, perhaps before), no full SHA256 instances were being computed. Several optimizations let you skip parts of the computation.
It is an approximation, because the actual hash rate is not observable. It can be computed by looking at the created blocks on the network, and treating each as (2^256 / target) worth of attempts (so approximately 4.3 billion hashes per difficulty per block). That is the expected number of necessary hashes.
By looking at the blocks, another inaccuracy is introduced: only blocks that end up in the main chain are counted. Some blocks end up on temporary forks because another miner produces another nearly simultaneous competing block that wins. This is only a fraction of a percent today, but it does waste a small amount of hashrate, which also ends up not being counted.
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
add a comment |
The number reported is an estimation of the number of block headers iterated through by all miners on the network.
This means it refers to double-SHA256 hashes performed, not broken down to individual SHA256 operations. This makes the most sense, because even in the very early days (2010, perhaps before), no full SHA256 instances were being computed. Several optimizations let you skip parts of the computation.
It is an approximation, because the actual hash rate is not observable. It can be computed by looking at the created blocks on the network, and treating each as (2^256 / target) worth of attempts (so approximately 4.3 billion hashes per difficulty per block). That is the expected number of necessary hashes.
By looking at the blocks, another inaccuracy is introduced: only blocks that end up in the main chain are counted. Some blocks end up on temporary forks because another miner produces another nearly simultaneous competing block that wins. This is only a fraction of a percent today, but it does waste a small amount of hashrate, which also ends up not being counted.
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
add a comment |
The number reported is an estimation of the number of block headers iterated through by all miners on the network.
This means it refers to double-SHA256 hashes performed, not broken down to individual SHA256 operations. This makes the most sense, because even in the very early days (2010, perhaps before), no full SHA256 instances were being computed. Several optimizations let you skip parts of the computation.
It is an approximation, because the actual hash rate is not observable. It can be computed by looking at the created blocks on the network, and treating each as (2^256 / target) worth of attempts (so approximately 4.3 billion hashes per difficulty per block). That is the expected number of necessary hashes.
By looking at the blocks, another inaccuracy is introduced: only blocks that end up in the main chain are counted. Some blocks end up on temporary forks because another miner produces another nearly simultaneous competing block that wins. This is only a fraction of a percent today, but it does waste a small amount of hashrate, which also ends up not being counted.
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
The number reported is an estimation of the number of block headers iterated through by all miners on the network.
This means it refers to double-SHA256 hashes performed, not broken down to individual SHA256 operations. This makes the most sense, because even in the very early days (2010, perhaps before), no full SHA256 instances were being computed. Several optimizations let you skip parts of the computation.
It is an approximation, because the actual hash rate is not observable. It can be computed by looking at the created blocks on the network, and treating each as (2^256 / target) worth of attempts (so approximately 4.3 billion hashes per difficulty per block). That is the expected number of necessary hashes.
By looking at the blocks, another inaccuracy is introduced: only blocks that end up in the main chain are counted. Some blocks end up on temporary forks because another miner produces another nearly simultaneous competing block that wins. This is only a fraction of a percent today, but it does waste a small amount of hashrate, which also ends up not being counted.
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
answered 7 hours ago
Pieter WuillePieter Wuille
51.7k4 gold badges106 silver badges177 bronze badges
51.7k4 gold badges106 silver badges177 bronze badges
add a comment |
add a comment |
Hash Rate
The hash rate is the measuring unit of the processing power of the Bitcoin network. The Bitcoin network must make intensive mathematical operations for security purposes. When the network reached a hash rate of 10 Th/s, it meant it could make 10 trillion calculations per second. Source
answered 8 hours ago
yahihebyahiheb
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
add a comment |
Hash Rate
The hash rate is the measuring unit of the processing power of the Bitcoin network. The Bitcoin network must make intensive mathematical operations for security purposes. When the network reached a hash rate of 10 Th/s, it meant it could make 10 trillion calculations per second. Source
answered 8 hours ago
yahihebyahiheb
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
add a comment |
Hash Rate
The hash rate is the measuring unit of the processing power of the Bitcoin network. The Bitcoin network must make intensive mathematical operations for security purposes. When the network reached a hash rate of 10 Th/s, it meant it could make 10 trillion calculations per second. Source
answered 8 hours ago
yahihebyahiheb
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Hash Rate
The hash rate is the measuring unit of the processing power of the Bitcoin network. The Bitcoin network must make intensive mathematical operations for security purposes. When the network reached a hash rate of 10 Th/s, it meant it could make 10 trillion calculations per second. Source
answered 8 hours ago
yahihebyahiheb
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 8 hours ago
yahihebyahiheb
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
answered 8 hours ago
yahihebyahiheb
31 bronze badge
answered 8 hours ago
yahihebyahiheb
31 bronze badge
31 bronze badge
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
yahiheb is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
add a comment |
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
This might be useful to others but doesn't give me the information I was looking for with my question... please define "calculation" to answer the detail of my question.
– Brad Thomas
8 hours ago
1
1
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
The hash rate is literally how many distinct block header hashes you can try per second. Source
– yahiheb
8 hours ago
add a comment |
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2
Double SHA256's per second.
– MCCCS
8 hours ago