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John T
  • Member for 8 years, 6 months
  • Last seen more than a month ago
140 votes
11 answers
78k views

Is it possible to brute force bitcoin address creation in order to steal money?

  • 11.4k
73 votes
3 answers
42k views

How is difficulty calculated?

72 votes
3 answers
51k views

What does the curve used in Bitcoin, secp256k1, look like?

39 votes
4 answers
67k views

How to fork Bitcoin and build own cryptocurrency [closed]

  • 599
22 votes
1 answer
14k views

How does the Kimoto Gravity Well regulate difficulty?

  • 63.4k
17 votes
3 answers
4k views

Is this "transaction malleability" really an issue?

  • 1,048
15 votes
3 answers
30k views

What is needed to make a bitcoin exchange?

  • 159
8 votes
1 answer
407 views

Why are there two byte sizes for timestamps in the Bitcoin protocol?

  • 2,681
6 votes
3 answers
589 views

How to experience the thrill of mining?

  • 1,099
5 votes
3 answers
589 views

Why was transaction malleability ever allowed?

  • 2,509
3 votes
1 answer
1k views

given a json of a block, how do I calculate its hash?

3 votes
2 answers
7k views

What are the pros and cons of P2P mining pools?

3 votes
2 answers
1k views

What software do exchanges use to manage wallets?

1 vote
2 answers
2k views

Can mining with lots of laptops make money? [duplicate]