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141  Alternate cryptocurrencies / Altcoin Discussion / Re: [XPM] Primecoin Built-in Miner Sieve Performance Issue on: July 13, 2013, 05:19:41 PM
The PPS is far, far above 4 million; Otherwise I'd be getting far more blocks with my 15k PPS.
15k pps, wowzers.
142  Alternate cryptocurrencies / Altcoin Discussion / Re: [XPM]QQQ if XPM / BLOCK = ans was 999/dif^2 what is going to sustain mining? on: July 13, 2013, 05:14:14 PM
The fact that diff 30 is orders and orders of magnitude more difficult than diff 8

what is the diff = function (Huh?)
The difficulty is the length of the prime chain that must be found.

Due to the distribution of primes going from 7 to 8 primes, I believe somebody said it was 230x as rare? So from 7 to 9 would be 52900x as hard. So from 7 to 30 = 230^23 = really big.
143  Alternate cryptocurrencies / Altcoin Discussion / Re: [XPM]QQQ if XPM / BLOCK = ans was 999/dif^2 what is going to sustain mining? on: July 13, 2013, 05:04:06 PM
The fact that diff 30 is orders and orders of magnitude more difficult than diff 8

Meaning we probably won't get over diff 10 without GPU miners. Let alone diff 20 or 30.
144  Alternate cryptocurrencies / Altcoin Discussion / Re: [XPM]QQQ how may XPM / BLOCK (also xpm on vircurex/MCX/CSY) on: July 13, 2013, 04:44:08 PM
I am having a bit of a hard time finding this out but how many XPM block and what is the supply rate =F(Hash)

also notice 3 exchanges carry XPM already!!!

quite an achievement

it will probably be on BTC-e next

20XPM/block at the beginning. But I have no idea why 15.xx now Cheesy. It's depend on total PPS, isn't it?

The reward is 999/diff^2
145  Alternate cryptocurrencies / Altcoin Discussion / Re: [XPM] Primecoin Built-in Miner Sieve Performance Issue on: July 13, 2013, 02:38:44 PM
Someone has to determine the miner situation. Which one works best for intel and AMD, Sandy, Ivy, Haswell, FX etc.

I'll help you.
Consider we have currently ~1 block found every 5 seconds.
Consider the whole network has probably over 4m pps total right now.

It comes down to rolling a dice every 5 seconds.
For example, with my insane 250pps, I have approximatively 0.006% chance to get a block every 5 seconds.

Understand why you haven't found one, now ?  Smiley



assuming a 4M pps network and that probability is proportional to pps, for each thousand of pps you should get four blocks per day.

How high should the difficulty be at 4M pps?
146  Alternate cryptocurrencies / Altcoin Discussion / Re: Have you heard of MasterCoin? on: July 13, 2013, 01:35:42 PM
New altcoin? 20$
200khash/s scrypt device? 400$
5GH/s double SHA256 device? 250$

For everything else there's MasterCoin.
147  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 13, 2013, 12:30:30 PM
How do you increase the number of connections? any nodes to be added? I have only 8 connections at the moment.
thanks

In your primecoin.conf add

Code:
maxconnections=#

I limited mine to 256.

Go ahead and

Code:
addnode 68.61.164.76 add

in your console.
148  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 13, 2013, 12:22:24 PM
My connected nodes has been steadily dropping, was at 100+ last night, currently at 83, are people leaving the network in light of the people getting 5k+ pps?
149  Bitcoin / Development & Technical Discussion / How many blocks have no unspent outputs? on: July 13, 2013, 05:38:24 AM
Other than the initial blocks with only the coinbase, do any blocks even have the luxury of having all their transactions being spent by now?
150  Alternate cryptocurrencies / Altcoin Discussion / Re: [Bounty] Primecoin Standalone CPU Miner! Current: 2.5BTC on: July 13, 2013, 05:26:36 AM
Pool share can be implemented as lower difficulty prime chains, similar to hashcash proof-of-work I think.

I'm not sure this is the case, or at least it is not as simple.  With hashcash proof-of-work it is impossible to look for lower difficulty shares without also looking for higher difficulty shares.  In Primecoin, on the other hand, as I understand it, one could look for chains of length 7 and find them with much greater frequency than they would find chains of length 7 while looking for chains of length 8 (i.e. pool miners would maximize their share submission by hurting the pool; the tragedy of the commons ensues).

I assume that when the mining algorithm executes it first executes the Sieve of Eratosthenes to build a list of possible primes.  If one finds that there is a list of 7 numbers that passed the sieve and form a chain then they could be checked to see if they form a valid share, even if the sieve eliminated the next value, proving that a block of difficulty 8 or higher is impossible from that start (I am assuming a share difficulty of 7 and a network difficulty of 8 or more).  A miner optimized for finding valid blocks as fast as possible would save computational time by ignoring the chain of length 7 when the difficulty is 8 or higher, while a miner optimized for finding valid shares would check every chain of primes that passes the sieve that is at least (share length) long.

This could be circumvented by requiring the numbers after the share's chain up to the integral network difficulty to all pass a sieve, but I believe that that would break the requirement that shares be fast to verify by the pool host.  Additionally, it would set stringent requirements on how the numbers would have to be sieved which would limit improvements to be made in that area (which seems to be where most of the improvements are being made).

You've made a really innovative coin, Sunny, and I trust you to come up with an innovative solution to this, but it isn't as simple as it may appear at first glance.
My p2pclient will beat this problem. By making a sub blockchain with difficulty one less than the main chain's, payment is based on all the blocks you have submitted during the round. The P2P chain will end up producing many many more primes than the main chain does, maybe somebody will take it upon themselves to create a listening node and just store them, since I won't be making a site for the pool it won't be me, which also means I can make it a no-fee pool.
151  Alternate cryptocurrencies / Altcoin Discussion / Re: Waiting for the first primecoin mining pool on: July 13, 2013, 03:03:15 AM
I'm trying to write a no-fee p2pclient. So there's at least one pool in the works.
152  Alternate cryptocurrencies / Altcoin Discussion / Re: How can developers make a decent return for their work in crypto currency on: July 13, 2013, 02:42:41 AM
Developers of coins shouldn't hold any coins hostage or give themselves an unfair advantage in the coin.

If their coin is truely great they will get donations from the users for their hard work.

Otherwise we reduce all these altcoins to ponzi schemes.
153  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 12, 2013, 03:41:47 PM
Is anyone who's tech savvy enough making a pool? You can make a shit ton of coins since everyone would hop right on.
I'm trying to make a p2pool, but at this point I'm not sure it could work with the block spacing already very below target.
154  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 12, 2013, 01:30:02 PM
I'm connected to 67 nodes.

Anybody have a higher number?
155  Alternate cryptocurrencies / Altcoin Discussion / Re: is dgc 51% attack? on: July 11, 2013, 11:40:43 PM
It's only an attack if they do something malicious with that power.
156  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 11, 2013, 10:18:25 PM
How much primecoins will be generated at all?
There is no hard limit, just the reward will reduce with additional network power.
157  Alternate cryptocurrencies / Altcoin Discussion / Re: WoW been a week and no new altcoins on: July 11, 2013, 10:17:35 PM
Primecoin isn't a week old yet.
158  Alternate cryptocurrencies / Altcoin Discussion / Re: [Bounty] Primecoin Standalone CPU Miner! Current: 2.5BTC on: July 11, 2013, 08:49:51 PM
There is no "better" in any other coin
I think you just proved my point here.

I didn't say there is no logic in much of you've said, on the contrary, your explanation why other coins fail is interesting. I only think you underestimate the inertia of Bitcoin fundamentals, it *may* fork in a few decades if SHA256 is undermined, and it may switch to some new hash function but everything else will stay the same.

Also, you are underestimating the new fundamental advantage of Primecoin: it will be very hard to implement it in GPU to be faster than CPU, unlike other coins. The advantage to mine with only CPU, gives many people a chance to mine, taken away from them by specialized GPU mining monsters.
If Bitcoin had to change the PoW, that would probably end up killing it.

By the time a reason comes to change the PoW, the amount of money invested in double SHA256 silicon would be much greater than it is today, and changing it would alienate the current mining community due to how expensive it would be to actually mine.
159  Alternate cryptocurrencies / Altcoin Discussion / Re: [Bounty] Primecoin Standalone CPU Miner! Current: 2.5BTC on: July 11, 2013, 08:42:06 PM
There is no "better" in any other coin
I think you just proved my point here.
Primecoin is at least doing something that has use outside of itself.
160  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [XPM] [ANN] Primecoin Release - First Scientific Computing Cryptocurrency on: July 11, 2013, 06:09:21 PM
15428bf4b0867cf6b75a85375f6a2266e54a1c9f244befeee72ec0545300ae0f

block 14961
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