Questions tagged [difficulty]

This tag should be used for questions regarding difficulty which encodes the likelihood of one hash to succeed at mining a block. Indirectly, it is a measure of the total hashing power of all miners for a given cryptocurrency.

19 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
5
votes
1answer
850 views

Creating Mining Competition on regtest

As we know , Bitcoin core-Regtest is used to set up our own blockchain starting from Genesis Block. I have created Two nodes on my localhost running on different ports (I am using Windows 8.1). They ...
3
votes
1answer
2k views

Matching pushpool difficulty with stratum's

I have a new question for you. I have setup the stratum mining proxy, and all is working fine. (Actually found our first block recently!) However, I have pushpool running as well, and some of my ...
2
votes
0answers
35 views

Is there an up-to-date professional analysis of different “mining shield” technologies?

E.g. Digishield, Gravity Well etc. As a non-miner, I only hear bits and pieces about these algorithms. Is there a comprehensive resource with details on the history of these algorithsm and relative ...
1
vote
0answers
38 views

How difficult is it to confirm a Bitcoin Block?

If I have done the math right to come up with this hash, to confirm a true block and this is a confirmed hash. You can look it up here Bitcoin Block #570240 ...
1
vote
0answers
113 views

Estimated number of hashes

This is not a duplicate of previous, similar questions I've read on StackExchange, since none of those questions, nor the answers, go into the difficulty theory, as espoused on the Bitcoin Wiki. ...
1
vote
0answers
20 views

What needs to be done inorder to change difficulty?

I'm trying for a while to reduce difficulty of main network to do some experiments on transactions and maybe simulate some possible attacks.I came up to change nBits field in chainparams.cpp but it ...
1
vote
1answer
28 views

When update mining difficulty, Is the timespan of the past 2016 blocks approximated value?

I know how to calculate difficulty, and I know it is increased or decreased by checking the timespan of the past 2016 blocks. and I found actual code for calculating timespan: https://github.com/...
1
vote
0answers
103 views

Why mining pool has different connections ports for different difficulty

In the documentation of mining pool I found following Connect Details: (Difficulty 5 - GPU) stratum+tcp://stratum.btcprivate.org:3032 (Difficulty 10 - GPU Farm) stratum+tcp://stratum....
1
vote
1answer
88 views

Will there be a problem if bdiff and pdiff are slightly different?

Considering bitcoin target is 0x00000000FFFF0000000000000000000000000000000000000000000000000000 and pool target is 0x00000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF. Won't pool miner ...
1
vote
0answers
139 views

How to calculate DGB-Groestl difficulties?

I'm new here. I want to know how mining difficulties are calculated, specifically for DGB-Groestl, which uses Myriad-Groestl algorithm. I might understand how to calculate the Bitcoin difficulties ...
1
vote
0answers
104 views

Is there a chart available for the historical relationship between Bitcoin price vs difficulty?

All I've seen is this, from 2011-would like something more updated, if available. Is there empirical data about a relationship between bitcoin price and difficulty?
1
vote
0answers
113 views

Are there multiple representations of the same target value? Are they interchangable?

The block target in Bitcoin is encoded in block headers as a 24 bit integer raised to an 8 bit exponent: int(nBits[1:4]) * 2 ** (8 * (int(nBits[0]) - 3)) Are there multiple nBits representations of ...
0
votes
0answers
22 views

What is the purpose of difficult in PoW

I'm trying to understand Proof of Work and something doesn't seem to fit, First, it seems to me that the faster the network can confirm a transaction, better is. I'm coming from a computing ...
0
votes
0answers
36 views

Finding target based on difficulty calculation

I'm trying to find the current target value, but it is not listed in any place. So far I found out that the only way to get target value is to calculate it from "difficulty" value, which is now: 6,379,...
0
votes
0answers
30 views

Estimating difficulty of “Memory-Hard Proof-of-Work” based on “size of memory”?

In Bitcoin proof-of-work, the difficulty of Proof-of-Work is estimated and calculated based on total hashing power of the participants. If total hashing power of the participants is higher, then PoW ...
0
votes
0answers
63 views

How to calculate difficulty re target?

I am trying to re-calculate difficulty and verify by using the formula T${new}$ = T${old} \times \frac{Time~ taken~ for~ previous~ 2016~ blocks}{2016~\times ~600}$ I used block #s 564697 and 562681 ...
0
votes
1answer
785 views

Probability of Finding a Block

I've been using cryptocurrency revenue calculators and have appeared to figure out that for all of the major algorithms, the probability of a hash being valid is 1/(D*2^u) where u is either 0, 13 (...
-1
votes
1answer
169 views

Managing Diff variable on eloipool software

I'm trying to set up a pool of Bitcoin Mining. I use a software program eloipool. https://gitorious.org/bitcoin/eloipool I can not find the configuration file options to force a change of Diff. So ...
-1
votes
1answer
218 views

why wont my hosted (shared) E-Wallet account show my bitcoin balance?

iv transferred 2 bitcoins in to deposit address with a hosted (shared) E-Wallet service. blockchain clearly shows its there but when im in the E-Wallet service its not showing. any know what the ...