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361  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 08, 2013, 03:45:31 PM
Pretty great.

So If I hold 5000 coins for 30 days, how big will the PoS be?

PoS reward is 0.05 coins per CoinYear, so if you stake 5000 coins with age of 30 days, it yields 150`000 CoinDays, which is ~410.96 CoinYears. 410.96 * 0.05 = ~20.55 coins.

So the formula is:
Code:
interest = (BALANCE - RESERVED_BALANCE) * DAYS_HELD / 365 * 0.05

You can choose to reserve some of your balance and not stake it (because it's unspendable for quite a long time when you stake it) and DAYS_HELD can be between 30 and 90 days.

EDIT: the actual formula in the source is a bit different, but this is a pretty close approximation.
362  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 08, 2013, 03:14:49 PM
Client need to be mining (and therefore without encryption) to earn the POS?

you could use encryption, see link below

How do you stake yacoins?

it's automagic, see https://bitcointalk.org/index.php?topic=187714.0
363  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 08, 2013, 02:14:56 PM
have some body have already got Proof of Stake?

yes, for example:
http://yacexplorer.tk/block/683ae9d8b201e2ffd9c0b509f7ef053d07fe49e61dbbc7b5931bc5c28d2131a7

address Y2e1VP9ZpwYCbVMk7RRhGDLwRKyuQwjzGQ staked 357.59 YAC and got 1.45 YAC as interest after 30 days of holding.
364  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 08, 2013, 01:35:12 PM
What exactly is this PoS ?

Proof of Stake, basically you get a small percentage as a bonus to the coins you're already holding for more than 30 days.

some more info:
https://en.bitcoin.it/wiki/Proof_of_Stake
https://bitcointalk.org/index.php?topic=187714.0
http://www.ppcoin.org/static/ppcoin-paper.pdf
365  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 07, 2013, 10:14:15 PM
Looks like the network hashrate is steady at 40Mhash. Anyone happen to know when the POS blocks are due to pop up in the wallets?

soon™
366  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Block Explorer now LIVE! http://yacexplorer.tk on: June 03, 2013, 07:03:53 PM
Implemented new block explorer feature: getbalance API call:
http://yacexplorer.tk/chain/Yacoin/q/getbalance/YOUR_ADDRESS_HERE

EDIT: Also, approximate network hashrate over last N blocks (default N = 1440 blocks = ~1 day):
http://yacexplorer.tk/chain/Yacoin/q/hashrate
367  Alternate cryptocurrencies / Altcoin Discussion / Re: Altcoin generator on: June 02, 2013, 06:22:01 PM
Is anyone willing to work with me to create a altcoin-creating GUI program?
You just enter a couple of parameters, a logo, and an abbreviation and it will generate the source for you?

You forgot the "premine" checkbox. Wink
368  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] yacoin: yet another altcoin. START is now. on: June 02, 2013, 05:55:18 PM
Is this really CPU mining rather than GPU mining? How do you ensure that the GPU owners are not ahead of the rest of us?
Not many people have GPU miner yet, and GPUs will probably stop working alltogether in August.
http://yacexplorer.tk/graphs.htm#tech

let me send you a little .01 YAC

Okay it seems that wallet works.

However, I stop receiving any money recently since 45 minutes ago. I wonder why.

sent some back, is it working?
you need to have unlocked wallet if you're solo-mining, else you won't recieve anything
369  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Block Explorer now LIVE! http://yacexplorer.tk on: June 02, 2013, 05:39:10 PM
1. Why would someone ever switch to 1440 blocks shown on a single page? It is pointless since there will hardly ever be exactly 1440 blocks solved in one day.
2. Cool, but it is on graphs page, not main page so anyone checking just block, address or transaction will never see it.
1) meh
2) why would they want to? imo anyone interested in details will browse through the technical info and find the links there
370  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] yacoin: yet another altcoin. START is now. on: June 02, 2013, 01:29:16 PM
Is this really CPU mining rather than GPU mining? How do you ensure that the GPU owners are not ahead of the rest of us?
Not many people have GPU miner yet, and GPUs will probably stop working alltogether in August.
http://yacexplorer.tk/graphs.htm#tech
371  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Block Explorer now LIVE! http://yacexplorer.tk on: June 02, 2013, 01:27:08 PM
Two suggestions:

1. Remove showing 2016 blocks (count=2016) since it has no connection with YAC, it is made for cryptocoins that retarget every 2016 blocks.
2. Put link for this thread somewhere on explorer webpages.

Done.

You replaced 2016 with 1440 (in what sense is that value relevant to YAC?) and there is no link pointing to this thread.  Huh

1) 1 day / 60 second blocks = 1440 blocks/day
2) at the end of technical info http://yacexplorer.tk/graphs.htm#tech
372  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Block Explorer now LIVE! http://yacexplorer.tk on: June 02, 2013, 12:57:53 AM
Server up again, let's see for how long it will last this time...

EDIT: Gah, it went down again... -.-" However, I found out that this is a known problem in Abe related to concurrent blockchain processing when new block is received from the network (race condition or something). I've implemented a quick fix - using a separate process for writing new blocks into DB once in a while (so webpage might be delayed by up to 60 seconds, not a big deal). Hopefully this avoids another DB corruption until proper fix is implemented in Abe.

Ahh, my young ABE Padawan.  Wink

The first step in your quest for a smooth running explorer is to switch to the FastCGI server and stop using the default built in python server.

You have the right idea about separate processes for update verses serve. Keep two copies of abe.py with different names like abe.py and uabe.py.

Any requests from the web server will use one abe.py with a conf file that uses a empty bracket for datadir (datadir = [] ). This will stop web requests from tripping an update.

To update the server use the blocknotify option in the coin daemon conf file and point it to a script that will run the second abe.py (uabe.py) with a full conf file to trigger a database update. The reason for the two named abe.py has to do with FastCGI sticking its big nose into your database update process if it has the same name as the process it trips.

If you need any more help, just let me know.  Cool

I already solved it, but thanks anyway.
373  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Block Explorer now LIVE! http://yacexplorer.tk on: June 01, 2013, 11:09:36 PM
Two suggestions:

1. Remove showing 2016 blocks (count=2016) since it has no connection with YAC, it is made for cryptocoins that retarget every 2016 blocks.
2. Put link for this thread somewhere on explorer webpages.

Done.
374  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Network Graphs! on: June 01, 2013, 08:30:57 PM
Random Yacoin Facts:
  • There are 30616 addresses used so far.
  • Top 10 receiving addresses:
Code:
address                                received
YBJeQQFCipbC4LrZTnTu6j5rSAMsqRkGJb     441151.00000000
Y8pzvdVPNKjhRQYnRWGd1sEcE7WKrGpqcV     314843.88000000
YDFcVs8sxTbym6K6msd2ziXtp8kwYhG1rw     304656.25000000
YJH8f3XKtTXWHpCAgYpQCi5HAQ7SCPGSXA     273753.93000000
Y2e1VP9ZpwYCbVMk7RRhGDLwRKyuQwjzGQ     186557.13978700
Y42xBGnxyoNfHDfvGiVfH8D8U34xthPxy8     159695.18000000
YAP2R5EfeiBSREwUJmdKEzd5HhvmpfkLHs     142114.29000000
Y5M9ec642cQGfe35HyYwqgNxvKr4ufoWiT     110849.44126400
Y9A8mdy2rqFihhGssGZEc7Npg5YZU4byHX     102909.92500000
YNwKaaULjo2hPJCi4FzVvqLonykLAq6SPT     102909.56990000
  • Top 10 sending addresses:
Code:
address                                sent
YDFcVs8sxTbym6K6msd2ziXtp8kwYhG1rw     304656.25000000
YAP2R5EfeiBSREwUJmdKEzd5HhvmpfkLHs     142114.29000000
Y5M9ec642cQGfe35HyYwqgNxvKr4ufoWiT     110849.44126400
YNwKaaULjo2hPJCi4FzVvqLonykLAq6SPT     102909.56990000
Y5JxizRK44ahePgNqgZDRjE9Bks58NohWQ      90320.46000000
Y5ve8DUxxUsX2uwcw54Mpwp4zV1gTeB56y      82832.35000000
YB24c3Uwenem72g7dhY5aP2RJg8oY72pzL      82732.00000000
Y1UdvTxdfMrCckK8S4ceS7VxR3ivx7yWMq      76614.71400000
YF3gMrRKbgL3kkNwG42XnBzjk23wvgWi7W      74413.44000000
Y7YMAVrC6YYe28kgqEog9e2LbjU5iTHhsm      67241.13272900
  • Top 10 addresses by final balance:
Code:
address                                balance
YBJeQQFCipbC4LrZTnTu6j5rSAMsqRkGJb     441131.00000000
Y8pzvdVPNKjhRQYnRWGd1sEcE7WKrGpqcV     314843.88000000
YJH8f3XKtTXWHpCAgYpQCi5HAQ7SCPGSXA     273741.93000000
Y2e1VP9ZpwYCbVMk7RRhGDLwRKyuQwjzGQ     185299.17978700
Y42xBGnxyoNfHDfvGiVfH8D8U34xthPxy8      99431.00000000
Y9kxx3oWXnVGV5gd8yHUMWcmV3BFRaLQAX      91402.91000000
Y4D4gQ32YhGP61CTRHJG9HM9M8HRAxMHom      74280.00000000
YMbVUEiaTEKM5wvQFtQ9cM9fNUMYceiVYA      70000.00000000
Y9A8mdy2rqFihhGssGZEc7Npg5YZU4byHX      52910.14500000
Y1dncJeBobRiYiBop6LWsUXq9fm8HbQfsp      50853.56924000
375  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Network Graphs! on: June 01, 2013, 04:50:18 PM
Interesting graphs. How did you carry out those GPU simulations? Is there a GPU miner out there for YAC? Wink
There are at least 4 GPU miner implementations, although none of them has been released as of now. mtrlt claims to have made the fastest one so far, see: https://bitcointalk.org/index.php?topic=206577.msg2241855#msg2241855
376  Alternate cryptocurrencies / Altcoin Discussion / Re: [ANN][YAC] Yacoin Network Graphs! on: June 01, 2013, 04:36:17 PM
Added a table with Nfactor increase dates/times, memory usage and CPU/GPU hashing speed comparison.
http://yacexplorer.tk/graphs.htm#tech
377  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 01, 2013, 02:56:01 PM
Rise Nfactor RISE !

Here comes 3x longer confirmation time Cheesy
378  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: June 01, 2013, 10:31:56 AM
If you are doing solo mining and have to leave it unencrypted, I suggest making two wallets and transfer coins to the encrypted wallet from time to time. As always, backup your data before running any random downloads from teh interwebs.

Sorry if this is offtopic but can't I solo-mine with my wallet encrypted?
My wallet is encrypted and I'm solo-mining with the minerd and I'm not getting any errors.. Huh

You won't find any block if you have your wallet encrypted and locked. Either unlock it for a long time period (walletpassphrase <pass> 99999999) or remove encryption.
379  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: May 31, 2013, 03:55:50 PM
I think it's very important to see YAC on sites like http://www.coinchoose.com/

I found this post with formula for BTC : https://bitcointalk.org/index.php?topic=63273.msg743237#msg743237

But i have no idea how we can integrate N in this formula.. someone have an idea ?

You need a formula for the block reward, Nfactor affects only difficulty.

EDIT: from the source:
Code:
int64 GetProofOfWorkReward(unsigned int nBits)
{
    CBigNum bnSubsidyLimit = MAX_MINT_PROOF_OF_WORK;
    CBigNum bnTarget;
    bnTarget.SetCompact(nBits);
    CBigNum bnTargetLimit = bnProofOfWorkLimit;
    bnTargetLimit.SetCompact(bnTargetLimit.GetCompact());

    // ppcoin: subsidy is cut in half every 64x multiply of difficulty
    // A reasonably continuous curve is used to avoid shock to market
    // (nSubsidyLimit / nSubsidy) ** 6 == bnProofOfWorkLimit / bnTarget
    //
    // Human readable form:
    //
    // nSubsidy = 100 / (diff ^ 1/6)
    CBigNum bnLowerBound = CENT;
    CBigNum bnUpperBound = bnSubsidyLimit;
    while (bnLowerBound + CENT <= bnUpperBound)
    {
        CBigNum bnMidValue = (bnLowerBound + bnUpperBound) / 2;
        if (fDebug && GetBoolArg("-printcreation"))
            printf("GetProofOfWorkReward() : lower=%"PRI64d" upper=%"PRI64d" mid=%"PRI64d"\n", bnLowerBound.getuint64(), bnUpperBound.getuint64(), bnMidValue.getuint64());
        if (bnMidValue * bnMidValue * bnMidValue * bnMidValue * bnMidValue * bnMidValue * bnTargetLimit > bnSubsidyLimit * bnSubsidyLimit * bnSubsidyLimit * bnSubsidyLimit * bnSubsidyLimit * bnSubsidyLimit * bnTarget)
            bnUpperBound = bnMidValue;
        else
            bnLowerBound = bnMidValue;
    }

    int64 nSubsidy = bnUpperBound.getuint64();
    nSubsidy = (nSubsidy / CENT) * CENT;
    if (fDebug && GetBoolArg("-printcreation"))
        printf("GetProofOfWorkReward() : create=%s nBits=0x%08x nSubsidy=%"PRI64d"\n", FormatMoney(nSubsidy).c_str(), nBits, nSubsidy);

    return min(nSubsidy, MAX_MINT_PROOF_OF_WORK);
}
380  Alternate cryptocurrencies / Announcements (Altcoins) / Re: [ANN][YAC] YACoin ongoing development on: May 31, 2013, 02:46:50 PM
I've noticed a huge increase in network hashrate. It is now 600x my own hashrate, while it was still 300x two days ago.

The client sometimes reports garbage, take a look at these graphs, they're averaged over 144 blocks (10 blocks for 24h graphs).
Network hashrate actually decreased on the 29th due to the Nfactor change.
http://yacexplorer.tk/graphs.htm
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