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This is very interesting. Also Primecoin seems to be helpful in the prime numbers field. http://primecoin.io/ http://primecoin.io/ https://en.wikipedia.org/wi

This is very interesting. Also Primecoin seems to be helpful in the prime numbers field. http://primecoin.io/ http://primecoin.io/ https://en.wikipedia.org/wiki/Primecoin https://en.wikipedia.org/wiki/Primecoin https://en.wikipedia.org/wiki/Cunningham_chain https://en.wikipedia.org/wiki/Cunningham_chain https://en.wikipedia.org/wiki/Bi-twin_chain https://en.wikipedia.org/wiki/Bi-twin_chain

raverbashing 12y ago
Looks like it's a better proof of work than a meaningless hash. I'm more sympathetic to using big amount of calculation to actually doing something useful, like calculating prime sequences. I wonder what other kind of (useful) work could be used as payloads for virtual currencies
- imaginenore 12y ago
  Large primes are pretty useless. Everyday crypto generally uses 512-bit primes, which can be generated very easily and quickly on the fly.
  - lukeschlather 12y ago
    This website uses a 2048-bit key. 512-bit RSA keys are considered generally insecure and easy to crack. 2048 is the industry standard. Your point is probably still valid, but we don't know how high we can go.
    - raverbashing 12y ago
      It's not about finding a large prime, it's finding prime densities, gaps, sequences, etc
    - wolfgke 12y ago
      512 bit primes lead to an RSA key length of 1024 bits, since the key length is the length of the product of two primes.
- czzarr 12y ago
  It's meaningless for a reason. https://download.wpsoftware.net/bitcoin/asic-faq.pdf https://download.wpsoftware.net/bitcoin/asic-faq.pdf
- Forbo 12y ago
  Gridcoin uses the Berkeley Open Infrastructure for Network Computing as a way of obtaining useful work for cryptocurrency. http://www.gridcoin.us/ http://www.gridcoin.us/ Edit: This is perfectly relevant to topic of discussion and informative. BOINC is a completely valid platform for distributed computing for many different areas of research including mathematics, medicine, molecular biology, climatology, environmental science, and astrophysics.

raverbashing 12y ago

Looks like it's a better proof of work than a meaningless hash. I'm more sympathetic to using big amount of calculation to actually doing something useful, like calculating prime sequences. I wonder what other kind of (useful) work could be used as payloads for virtual currencies

imaginenore 12y ago
Large primes are pretty useless. Everyday crypto generally uses 512-bit primes, which can be generated very easily and quickly on the fly.
- lukeschlather 12y ago
  This website uses a 2048-bit key. 512-bit RSA keys are considered generally insecure and easy to crack. 2048 is the industry standard. Your point is probably still valid, but we don't know how high we can go.
  - raverbashing 12y ago
    It's not about finding a large prime, it's finding prime densities, gaps, sequences, etc
  - wolfgke 12y ago
    512 bit primes lead to an RSA key length of 1024 bits, since the key length is the length of the product of two primes.
czzarr 12y ago
It's meaningless for a reason. https://download.wpsoftware.net/bitcoin/asic-faq.pdf https://download.wpsoftware.net/bitcoin/asic-faq.pdf
Forbo 12y ago
Gridcoin uses the Berkeley Open Infrastructure for Network Computing as a way of obtaining useful work for cryptocurrency. http://www.gridcoin.us/ http://www.gridcoin.us/ Edit: This is perfectly relevant to topic of discussion and informative. BOINC is a completely valid platform for distributed computing for many different areas of research including mathematics, medicine, molecular biology, climatology, environmental science, and astrophysics.