[ANN][YAC] YACoin ongoing development

[Beave162]

A good arb opportunity for Yacoin right now is to buy on crypsty and sell on bter.

BTW guys it looks like the price is finally starting to take off. If you look at the chart there was a really big jump in about November 2013. I'm expecting something similar to happen sometime this year.

So, you're predicting a 100x growth?  I'm optimistic most of the time, but that's pretty far fetched, even for true believers!

Knock optimism all you want, ThirtyBird. Bottom line, if it has happened before, it CAN happen again true?

I have A LOT of optimism in terms of the people behind the coin--you, Joe_Bauers, the others, even Windmaster . I also think the fundamentals behind the coin are SOLID. So I would expect the price to reflect that in the near future.

[Beave162]

YACoin Bounty Update

Given the recent price increase, I feel I should remind people of the outstanding, unclaimed bounties, which have increased due to PoS minting!

--Built-in Wallet Miner with Autotune, Autodetect - 155,162 YAC
Donate to bounty here: YAA2QgGmKdzo31pg6iZBQNTF2xgRHmsVXw
https://forum.yacoin.org/index.php?topic=716.0

--YAC Multipool - 104,992 YAC
Donate to bounty here: YLNhNhRVspJMZLBN4PcSjkLsVTd3TMaq7R
https://forum.yacoin.org/index.php?topic=639.0

If there are more that I am missing, please let me know.

[Beave162]

Does the YACoin wallet coin control automatically select the lowest priority inputs? If not, can it be so??

[alenevaa]

Guys, why are so many orphan blocks in chain in last times? 

[Beave162]

Guys, why are so many orphan blocks in chain in last times?  

Are you referring to yac.coinmine.pl? Ii is because the network hashrate is 143 khash/s while that pool's hashrate is 19.5 khash/s. On top of that, block times are at 50 seconds at the moment.

[alenevaa]

Not only the coinmine.pl

I’m mining at a little private pool with total hashrate about 3 kh/s.
And with any network hash rate (up to 500kh/s) there was no orphan blocks (less than 2%)!

It all started about a week ago.. you can check log at coinmine.pl

[Beave162]

Not only the coinmine.pl

I’m mining at a little private pool with total hashrate about 3 kh/s.
And with any network hash rate (up to 500kh/s) there was no orphan blocks (less than 2%)!

It all started about a week ago.. you can check log at coinmine.pl

Selfish mining perhaps? Some one or some pool has a large piece of the network hashrate, and I wouldn't be surprised if there is some manipulation going on. I'd still bet that if coinmine.pl was 7 times bigger the orphan rate would drop significantly...

[alenevaa]

I'm sure there is some kind of manipulation!

So what can we do? Any ideas!

[Beave162]

I'm sure there is some kind of manipulation!

So what can we do? Any ideas!

Maybe we can find out if there is some unknown pool out there?

I think the concern would depend on the intent of any manipulation. If it is simply to mine-and-dump for bitcoin, then that person is only hurting himself in my view. The price is kept artificially low which will offer some opportunity to buy for those who earn and keep YAC through Proof Of Stake.

As time passes, mining will really be only a small part of the overall picture--even if you assume no new miners and no new hardware improvements (wrong assumptions). As an example, the issues that have occurred in the past with NFactor changes (long adjusting time; dramatic rate increase in the money supply), may be a concern for those who mine just to dump. However, the overall network and marketcap won't be a concern for long-term stakeholders. Just my thoughts.

[Beave162]

Less Than 10 Days Until NFactor 17!

http://muuttuja.org/yacoin/countdown/

The most innovative coin in crypto, and the pioneer of the scrypt-chacha algo is making the move into the next NFactor level--as originally scheduled over 2 years ago! Scrypt-chacha as a whole has been picking up steam, and the price of YAC has over tripled in that last couple months. Patience has been a virtue and will continue to be moving forward.

As YACoin advances into this new, exciting, uncharted, intriguing territory, I'm setting up a little promotion. If you would like of these bad boys please send me a private message with your hat size and info. I will be giving away these hats in exchange for 50,000 YACs. U.S adresses only please. I will stop taking orders at this exchange rate exactly when the NFactor reaches NF17.

[bitdwarf]

Does anyone know how many coins are being mined with POW vs POS nowadays?

[senj]

Guys, why are so many orphan blocks in chain in last times? 

I don't know why, but a lot is happening - 62 reorganizations in last 12hrs.
13 blocks disconnected at one time.

[alenevaa]

I don't know why, but a lot is happening - 62 reorganizations in last 12hrs.
13 blocks disconnected at one time.

Here is that 13 orphaned blocks:

Code:

height  Public Chain            Private Chain
1103104          00000173584fe66bc46e934dbb2b54d09927955a214eed6c29b420366409b201
        Disconnected            Connected
1103105 0000004d381f5a0abb43  0000006f45f983b4cdb18b9f10d1837a06bff9b70c64b23d283752af08526eff 1
1103106 00000127f1efb389c045  0000009a2adc36b457157cb1dfc94646fda959337707f0410b0720b62b754931 2
1103107 000000fcc2e3163ddc5d  000000b5ac84826db105972ad7a007445723e3d9c823ff7ad56b63815a6fd866 3
1103108 0000017af9d7161e7fa1  00000144b373fc01342c6e96803e2a9f49a8f24435db6e338c3b5d1e5a8857db 4
1103109 0000003212ddca67bb90  000001a75ba2f06b18d7c178e49c04c17a3be855094dc07d423ba4268b6591e2 5
1103110 f593c322a1d8ad2f8b0f  000001a1420607073c77405c4e5e889191f853f6bfb5d963d657dacdd478badf 6
1103111 000000e47429bf1f0e15  0000017fb0ede26b130bafc7551e249aaba7d0863ca9827799a795de949b1a41 7
1103112 00000078233a86e0580b  0000013fe4fb7ba005152e4511f94ace36b3fa66653e0bb0c69e1cd86682525e 8
1103113 0000004f48222b8cba61  00000082552af7fb8a8e2e3fc7bcce806a9ba369da78d09a51f4cac337e5f8f2 9
1103114 000000f7dcf50f9892de  00000155a09fac3378f90b686285de60834e1d185dbf6dfc3038a2501e3abcf6 10
1103115 0000015dc4e7d207493a  00000064e1347d0bb96e7eff08c9c6e4c9aac77f11e8f1c03875c38720d6becb 11
1103116 000000a6c3d8672f9c1d  0000004382882145c17380fba1c1fb96116f0e64b6b2f23b9c6c9d7b7f370a2a 12
1103117 0848f4b9c048cb54991e  0000019b194862a3e14cb074f016a3369ec3db3cc585e231fac436d1b0118ab7 13
1103118                         00000129efb2d94ac7407ad09e2cccdcefb28b31a589e051d718314ea807bc08 14
1103119                         0000013e4964f8ca1d4a49bfdb5072361cd6ff6a605f4ad9ffd19938b7e5f262 15
1103120          000001bf6dfd24f3d4c1dd555f7be91d0057e46542bcf3dc28e8a92fb89f2b4e

That blocks was replaced by 15 new 'alternate' blocks.
But why new blocks was not shown to official chain right from the start!?

Perhaps there is malicious miner which has more than 50% of network hashrate.
He shows his 'private' chain to public chain/wallets with delay just when his chain better (in terms of found blocks) than public chain.

Almost in all cases when reorganization has happened, 'alternate' chain has more blocks than public chain.

[caston]

The price is really shooting up especially on bter.

3 months ago I posted to the Yacoin sub on reddit advising that price Yacoin was being traded at you could purchase 1 million Yacoin for about 1 bitcoin. Now you need 5 bitcoins to purchase 1 million Yacoin.

So for the last 3 months Yacoin is officially on an upwards trend! Well done Yacoin!

[senj]

I don't know why, but a lot is happening - 62 reorganizations in last 12hrs.
13 blocks disconnected at one time.

...
But why new blocks was not shown to official chain right from the start!?

Perhaps there is malicious miner which has more than 50% of network hashrate.
He shows his 'private' chain to public chain/wallets with delay just when his chain better (in terms of found blocks) than public chain.

Almost in all cases when reorganization has happened, 'alternate' chain has more blocks than public chain.

Regarding those 13 disconnects:

Here the chain splits. Following both branches ( links after "Next Block" ), I believe one branch mostly awards familiar coinmine.pl address (YESJtirJQJsDRTVS67UuuPZfeoJ6YWojwt), while the other (it's coinbase rewards 15Lxek3tUvxzDhjX1dtC3Znz6xXi62HtvF) is competing branch that refuses to mine on top of block of first one, but it does not seem to withold blocks until later.
Two steps later It can be seen that it also bumps up difficulty (perhaps because of different times), so it is able to overwrite best branch inspite of that one having POS blocks included.

[Beave162]

I don't know why, but a lot is happening - 62 reorganizations in last 12hrs.
13 blocks disconnected at one time.

...
But why new blocks was not shown to official chain right from the start!?

Perhaps there is malicious miner which has more than 50% of network hashrate.
He shows his 'private' chain to public chain/wallets with delay just when his chain better (in terms of found blocks) than public chain.

Almost in all cases when reorganization has happened, 'alternate' chain has more blocks than public chain.

Regarding those 13 disconnects:

Here the chain splits. Following both branches ( links after "Next Block" ), I believe one branch mostly awards familiar coinmine.pl address (YESJtirJQJsDRTVS67UuuPZfeoJ6YWojwt), while the other (it's coinbase rewards 15Lxek3tUvxzDhjX1dtC3Znz6xXi62HtvF) is competing branch that refuses to mine on top of block of first one, but it does not seem to withold blocks until later.
Two steps later It can be seen that it also bumps up difficulty (perhaps because of different times), so it is able to overwrite best branch inspite of that one having POS blocks included.

I have been monitoring/investigating this situation for the past few days. And I am noticing that the network hash/s spikes around 12am-3pm PST (7am-10am GMT) to over 200 khash/s and then it reduces to as low as 100 khash/s at around 12pm-3pm PST (7pm-10pm GMT.

Looking at the statistics on yac.coinmine.pl, I have seen the block reward time get as low as 32 seconds when the network hashrate is at its highest. Also, looking at http://explore.grokonet.com/?inflation=1, you can see inflation spike to 100% and then back to 50% cyclically with a period of about 24 hours over the last few weeks.

Could it be some student at a university in eastern Europe who has access to a few supercomputers at only certain times of the day, every day? Could it be some selfish/malicious miner (botnet operator perhaps) who is systematically playing off of the difficulty adjustments to optimize the benefits of selfish mining? By the way, it seems that the time per block has the 'biggest' impact vs someone having over a third (or more) of the network hashrate.

There is 'kicker here... I believe whoever is doing it is NOT mining and dumping.  In fact, that person(s) could very well be mining and pumping? When I attempted to even out the network by pointing some resources to coinmine.pl, evening out the network, it seemed that automatic sale orders started up on cryptsy. When I pointed my resources away from coinmine, the sell orders stopped.

It is an interesting situation. Since I don't know who this 'selfish' miner is nor his intentions, I would rather help out coinmine.pl (I think there is a chinese pool as well somewhere with about 60-80 khash/s of hashing power?) and allow smaller miners to mine and dump a few thousand yac a day vs allowing one entity to have a near monopoly on nearly 100,000 YAC created per day. However, the NFactor changes in less than 6 days, which will change the entire landscape in terms of blockchain transaction processing...

[old c coder]

Does anyone know how many coins are being mined with POW vs POS nowadays?

Hello bitdwarf

If your question is: how many YACs are being mined with PoW vs PoS, then looking at http://explore.grokonet.com/
note that a PoW block reward is 70.69YAC, and a PoS block varies according to how much is "at stake" by the holder.

If your question is: how may various crypto currencies are PoW mined vs PoS mined, then you might look at the now 636 *coins listed at http://coinmarketcap.com/all/views/all/ for example, and count which are PoW and which PoS.  Note that it is not so clear with a coin like YAC that is both!

Ron

[senj]

...

Regarding those 13 disconnects:

Here the chain splits. Following both branches ( links after "Next Block" ), I believe one branch mostly awards familiar coinmine.pl address (YESJtirJQJsDRTVS67UuuPZfeoJ6YWojwt), while the other (it's coinbase rewards 15Lxek3tUvxzDhjX1dtC3Znz6xXi62HtvF) is competing branch that refuses to mine on top of block of first one, but it does not seem to withold blocks until later.
Two steps later It can be seen that it also bumps up difficulty (perhaps because of different times), so it is able to overwrite best branch inspite of that one having POS blocks included.

These are bits values from both branches from blocks 1103105 and onward:

1e02141d(01:55:49)   1e02141f   1e021430   1e021418   1e0213fa
1e02141d(01:58:32)   1e021469   1e021478   1e02146f   1e021496

Second branch, that later overtakes the first one has higher bits value (block found 3min after first branch). That gets expanded to higher target value and thus lower difficulty and not the other war around like I presumed before. That could make it possible to catch up with first chain without having more resources.

[caston]

The Yacoin price is going to double roughly every 3 days. Hold on to your hats and your wallet.dats!

[senj]

Looking at code it seems that block reward calculation goes like the this:

Code:

nSubsidy = 100 / (diff ^ 1/6)

but wiki and other sites say it is like this:

Code:

nSubsidy = 25 / (diff ^ 1/6)

Here for example
https://yacoin.org/tech.html
http://coinwik.org/YaCoin
http://coinwiki.info/en/Yacoin


I can not figure out where did 25 came from. Can someone explain this or at least point me in right direction please?