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Author Topic: [ANN] Datacoin - Censorship-Free Data Storage  (Read 66839 times)
gjhiggins
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May 31, 2021, 12:07:38 PM
 #1401

“A blog on the Datacoin blockchain”



If you're using the latest Datacoin 0.16.3 client from my repos (self-compilers, don't use the zip file, clone the repos and compile from master), then you can read a blog post about making blog posts on the Datacoin blockchain

Cheers

Graham


This facility is now available in the released Datacoin 0.16.3 client if you set rest=1 in the config.

Cheers

Graham
xtrimsky
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June 01, 2021, 02:03:28 PM
 #1402

I'm quite interested in datacoin (I was an early miner of it back in 2013). But with the current difficulty I am interested in solo mining instead of pool mining. Graymines seem to take a very high percentage, or at least have bugs, since I mined over 1400 coins in a day and received only 200. Is there a windows software that I can use for solo GPU mine? (i doubt GPU mining would work with WSL).

It seems to me that this coin is very cool, but the main issue it's hitting is the software that's available. Thank you for fixing the wallet Graham, that was a big step forward. But in order to succeed it would need a lot more libraries for development (Node.JS, PHP, etc..), a lot more wallets. So that it's much easier to setup and run on servers. Projects would be born much faster if DTC had ways to quickly deploy on a web server, to create services, more trading platforms, etc...
I see that Primecoin has a primecoind release and that a lot of libraries use that. Can datacoin just run in command line and accepts an RPC connection? Or does it require a GUI? (just wondering if I can build a JS library and even an API for developers to use).

I think there is a huge potential for data storing on blockchain, even possibly storing data for entire social networks, it's just not that easy for developers to build with the low amount of libraries currently available.
balko14
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June 01, 2021, 07:16:50 PM
 #1403

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool
minerja
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June 02, 2021, 07:36:26 AM
 #1404

I'm quite interested in datacoin (I was an early miner of it back in 2013). But with the current difficulty I am interested in solo mining instead of pool mining. Graymines seem to take a very high percentage, or at least have bugs, since I mined over 1400 coins in a day and received only 200. Is there a windows software that I can use for solo GPU mine? (i doubt GPU mining would work with WSL).

*** Simply enter the console and type  "setgenerate true x" where x is number of cores you want to mine with....works fine (use cores not threads though, well at least for AMD) ***
*** Mined using graymines over last 4 years, can't really say i have noticed any issues, but if you have contact pool owner "Contact: MarcusDe @ bitcointalk forum " ***

It seems to me that this coin is very cool, but the main issue it's hitting is the software that's available. Thank you for fixing the wallet Graham, that was a big step forward. But in order to succeed it would need a lot more libraries for development (Node.JS, PHP, etc..), a lot more wallets. So that it's much easier to setup and run on servers. Projects would be born much faster if DTC had ways to quickly deploy on a web server, to create services, more trading platforms, etc...
I see that Primecoin has a primecoind release and that a lot of libraries use that. Can datacoin just run in command line and accepts an RPC connection? Or does it require a GUI? (just wondering if I can build a JS library and even an API for developers to use).

I think there is a huge potential for data storing on blockchain, even possibly storing data for entire social networks, it's just not that easy for developers to build with the low amount of libraries currently available.
minerja
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June 02, 2021, 07:38:43 AM
 #1405

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.
minerja
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June 02, 2021, 07:48:18 AM
 #1406

Mining reward does not show in pending or final balance.  But reward mined message (hammer) is shown.
Fix committed to repos: https://github.com/datacoinproject/datacoin/commit/fc03f6c87b5efcdf4dc31544e035a5dc479d832e

Binaries cross-compiled, new release created:

https://github.com/datacoinproject/datacoin/releases/tag/0.16.3.1

Cheers

Graham

Hi Graham,

Just tried it on
Distributor ID:   Linuxmint
Description:   LMDE 4 (debbie)
Release:   4
Codename:   debbie

Works great.

Any chance of a bootstrap please?
Takes for every to download chain, and my other roaming directories don't work with this version without a full re-index
balko14
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June 02, 2021, 10:16:05 AM
Last edit: June 02, 2021, 10:28:43 AM by balko14
 #1407

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.

My CPD 12500 worked at 05.31 for over an hour and got 600 DTC and should get at least 3000 DTC.
gjhiggins
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June 02, 2021, 11:06:48 AM
 #1408

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
Been mining on graymines for a few months now without any real issues. At one point, payments stopped but blocks were still being generated so I didn't see it as a major issue: DMd MarcusDE@here who responded within an hour with the action he'd already taken and a promise to give it his full attention at the weekend - which he did and the payment blockage was resolved.

MarcusDE runs the pool to support the DTC chain:

dtc.graymines.net pool is back to help DTC network ;-)

fwiw, eXtremal.ik71 used to run a DTC pool on coinsforall.io but when that fire occurred the data centre, the DTC pool went away and hasn't yet been restored:

Quote from: eXtremal.ik71 link=topic=831708.msg56537924#msg56537924
coinsforall.io was in destroyed SBG2 (with backups), now reopened.
Bummer. Good that you could re-open so soon.

Looks like you took the opportunity to close the Datacoin pool?

Cheers

Graham

Ok, DTC pull will be recovered little bit later.

So, MarcusDE has my thanks for his continued support of the DTC chain.

Cheers

Graham

gjhiggins
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June 02, 2021, 11:51:21 AM
 #1409

Is there a windows software that I can use for solo GPU mine? (i doubt GPU mining would work with WSL).

Yes ... and no. eXtremal-ik7 maintains a Github repos with open source code for a standalone XPM miner but there isn't a Windows version available and I've not yet managed to compile it successfully on a modern Linux distro. However, it does seem as though there might be a Windows compilation path, for example QtCreator can work with CMake on Windows. If I get time, I'll fire up a Windows VM and take a look at the feasibility.

However, minerja's answer is correct in his response:
*** Simply enter the console and type  "setgenerate true x" where x is number of cores you want to mine with....works fine (use cores not threads though, well at least for AMD) ***


... in order to succeed it would need a lot more libraries for development (Node.JS, PHP, etc..), a lot more wallets. So that it's much easier to setup and run on servers. Projects would be born much faster if DTC had ways to quickly deploy on a web server, to create services, more trading platforms, etc...
I see that Primecoin has a primecoind release and that a lot of libraries use that. Can datacoin just run in command line and accepts an RPC connection? Or does it require a GUI? (just wondering if I can build a JS library and even an API for developers to use).
The Datacoin 0.16.3 client is pretty much a straight clone of Primecoin 0.16.3 (itself a fairly straight clone of Bitcoin 0.16.3), so yes, there's a datacoind and a datacoin-cli which can be run from the command line and which accepts all the RPC commands that Bitcoin can, as well as a few more (e.g. senddata). As an indirect but straight clone of Bitcoin, you'll find that most external libraries that can talk to Bitcoin can talk to Datacoin - the only thing they won't do is say anything about the data stored on the Datacoin chain because that's specific to Datacoin. However, there are libraries and support packages in the Datacoin Github repos which can show the data (e.g. j0nn9's DTCBrowser).

HTH

Cheers

Graham
minerja
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June 02, 2021, 01:35:38 PM
Merited by xandry (2)
 #1410

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.

My CPD 12500 worked at 05.31 for over an hour and got 600 DTC and should get at least 3000 DTC.

The block time is 1min, so 60 blocks per hour x 24 hours = 1440 blocks a day max @10 DTC a block = 14,400 DTC a day...so 1 hour = approx 600 coins, which is what you got.
balko14
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June 02, 2021, 02:25:07 PM
Last edit: June 02, 2021, 02:37:37 PM by balko14
 #1411

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.

My CPD 12500 worked at 05.31 for over an hour and got 600 DTC and should get at least 3000 DTC.

The block time is 1min, so 60 blocks per hour x 24 hours = 1440 blocks a day max @10 DTC a block = 14,400 DTC a day...so 1 hour = approx 600 coins, which is what you got.

I have more than 10 blocks per minute

mining calculator
Your CPD:12500
Difficulty:8.4189
Include pool fee (4%)Calculate
DTC per day: 100510.967
minerja
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June 02, 2021, 02:53:06 PM
 #1412

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.

My CPD 12500 worked at 05.31 for over an hour and got 600 DTC and should get at least 3000 DTC.

The block time is 1min, so 60 blocks per hour x 24 hours = 1440 blocks a day max @10 DTC a block = 14,400 DTC a day...so 1 hour = approx 600 coins, which is what you got.

I have more than 10 blocks per minute

mining calculator
Your CPD:12500
Difficulty:8.4189
Include pool fee (4%)Calculate
DTC per day: 100510.967


LOL

Then you have broken the coin, and should be mining 140 DTC per minute = 8400 DTC per day.
Good luck to you...in 4 years, some of which i was the only miner mining this chain, i have never managed more than 6000 DTC a day....so i take my hat off to you....you must be mining approx $37 a day...if that is the case then there is ZERO point anyone else mining as you must be winning 99.9% of all blocks.......

I'm guessing this is you - https://dtc.graymines.net/index.php?id=account&addr=DDFuWNPHqf9H475n7BTfS4oy8hhgCHWfSF  seems strange if you are getting 100510.967 DTC per day, that you have only mined "PAID EVER - 156001.00 DTC ... something doesn't add up
oh, this is me - https://dtc.graymines.net/index.php?id=account&addr=DGmwKtGuqZsJWtFAKwqVFayvWXSnvbTiYe and so far today with cpd:1695 i have only mined 150 DTC in 2 hours, hmmm, your 12500 / my 1695 = 7.37, so my 150 in 2 hrs = 75 in 1 hr * 7.37 = 552 DTC (you got 600 DTC for 1 hour), so looks like my calculations are not far off.... approx 14,400 DTC per day

My guess is that you are hitting pool with way too much hashrate and that most of your blocks are duplicates....try editing your config to use less cards....say 1 or 2, and see how you go
balko14
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June 02, 2021, 03:16:31 PM
 #1413

Pool ( dtc.graymines.net) SCAM. 80 percent the pool takes for itself do not mess with this pool

*** Mined using graymines over last 4 years, can't really say i have noticed any issues ***
What CPD do you have?
What exact issues are you having?

Have you tried contacting MarcusDe @ bitcointalk forum, he can probably help.

My CPD 12500 worked at 05.31 for over an hour and got 600 DTC and should get at least 3000 DTC.

The block time is 1min, so 60 blocks per hour x 24 hours = 1440 blocks a day max @10 DTC a block = 14,400 DTC a day...so 1 hour = approx 600 coins, which is what you got.

My coin income, when the http://coinsforall.io/ pool worked and everything worked fine, the speed exceeded 23000, but the complexity then beat much more than it is now


1101067
3905d67ad3...   +1003.66754629   0.00000000   OK   09:36:07 08/03/2021
1101033
9a275ffdd5...   +1007.41278555   0.00000000   OK   08:57:06 08/03/2021
1100992
364e7f0457...   +1000.06218336   0.00000000   OK   08:06:07 08/03/2021
1100958
b468a22307...   +1006.27759303   0.00000000   OK   07:27:06 08/03/2021
1100921
fbaf38a498...   +1000.77707421   0.00000000   OK   06:36:07 08/03/2021
1100897
822805ac01...   +1000.22591080   0.00000000   OK   05:57:06 08/03/2021
1100857
18427de1c4...   +1000.15272519   0.00000000   OK   05:06:06 08/03/2021
1100823
4aef82c2fb...   +1001.32324665   0.00000000   OK   04:15:07 08/03/2021
1100788
65f4057845...   +1007.08727809   0.00000000   OK   03:36:06 08/03/2021
1100758
088d877e6a...   +1008.32886653   0.00000000   OK   02:45:05 08/03/2021
1100731
0b1c548469...   +1007.45672812   0.00000000   OK   01:54:06 08/03/2021
1100717
cdf92e7d08...   +1003.12011732   0.00000000   OK   01:15:07 08/03/2021
1100685
5788d9c741...   +1007.12455927   0.00000000   OK   00:33:07 08/03/2021
1100665
d426ebd0a8...   +1008.10140777   0.00000000   OK   23:54:06 07/03/2021
1100630
a477f5c424...   +1006.05571180   0.00000000   OK   23:12:08 07/03/2021
1100584
7769ddfa70...   +1002.09770111   0.00000000   OK   22:33:06 07/03/2021
1100548
6051523ef9...   +1003.42751877   0.00000000   OK   21:42:07 07/03/2021
1100527
3977551c13...   +1002.41646186   0.00000000   OK   21:12:06 07/03/2021
1100500
fcf5a90d0d...   +1003.23516997   0.00000000   OK   20:33:06 07/03/2021
1100466
5093f5c68f...   +1002.76044727   0.00000000   OK   19:51:06 07/03/2021
1100436
fb551cd52b...   +1006.30450988   0.00000000   OK   19:12:06 07/03/2021
1100422
2f68613840...   +1005.27385475   0.00000000   OK   18:42:06 07/03/2021
1100393
eca969eb27...   +1007.24999394   0.00000000   OK   18:00:06 07/03/2021
1100353
04a1588b2b...   +1001.55566346   0.00000000   OK   17:12:07 07/03/2021
1100327
7f35146b20...   +1000.27305002   0.00000000   OK   16:42:06 07/03/2021
1100284
af98a92204...   +1008.21185792   0.00000000   OK   16:00:06 07/03/2021
1100205
cc03623e4b...   +1004.19525209   0.00000000   OK   15:30:06 07/03/2021
1100179
41e7a22297...   +1008.71403214   0.00000000   OK   14:51:06 07/03/2021
1100154
312d7992fa...   +1000.02834920   0.00000000   OK   14:21:06 07/03/2021
1100119
bdf65e4cb6...   +1001.72623867   0.00000000   OK   13:39:06 07/03/2021
1100101
2e2bf23434...   +1005.49985118   0.00000000   OK   13:09:06 07/03/2021
1100059
b2e11c5148...   +1007.36684982   0.00000000   OK   12:30:06 07/03/2021
1100037
91e0a1985f...   +1002.83335557   0.00000000   OK   11:57:07 07/03/2021
1099992
1ed43cb3a0...   +1005.28958256   0.00000000   OK   11:06:06 07/03/2021
1099968
8d249b3234...   +1007.97271861   0.00000000   OK   10:36:06 07/03/2021
1098291
779b984cc7...   +1000.36496782   0.00000000   OK   09:48:07 07/03/2021
1098260
4e3c67def9...   +1005.57859101   0.00000000   OK   09:15:06 07/03/2021
1089303
973d5fccbc...   +1005.76925362   0.00000000   OK   19:27:07 26/02/2021
1089271
65e4a1e942...   +1001.66197101   0.00000000   OK   18:18:07 26/02/2021
minerja
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June 02, 2021, 03:53:30 PM
 #1414

Looking at your figures, they are indisputable...but...by the look of it, you jump in the pool sometimes, and hit it with a load of hash, get fantastic returns then leave (my guess)

The block time for DTC IS 1 minute, so 60 blocks per hour * 24 hours = 1440 blocks per day
BUT
I cannot find the diff retarget time, i know the confirms was 3200, so i am guessing that the diff retarget is also very substantial, so i am guessing that what you are seeing is a fairly static mining situation, then you hit it with huge hash, becuase the diff takes say 3200 blocks to re adjust, you manage to mine blocks way too quick, then 24 hours later, when you stop mining, it is still waiting for to get to the next adjustment point, but since the overall hash has dropped again, it doesn't add much diff, then over next few days, it slowly drops diff back down, then whoop you swoop in again and over power it....

That is only my guess, perhaps Graham or someone else has the retarget figures?

Some coins retarget every single block, bitcoin and litecoin every 2016 blocks, other coins every 50 or 100 blocks.

My guess is if you mine consistently with 12500 cpd (upto 23000 cpd) then we would see the diff rise well over 9. it might take a while but the diff always adjusts......

I could be entirely wrong, but about 3 years ago i had a similar experience, i mined a cpu only coin....its block time was every 2 minutes, but literally no-one was mining it, so the global hash was 1KH/s, i could acheive 65KH/s with just 1 core....so i would solo mine it with 12 threads for approx 3-4 hours, mining a block about every 1-4 seconds, within that 3-4 hours i had mined over 100,000 coins, and then the diff would jump 10 fold, so i would stop, and come back 1-2 weeks later.....when i would find the blocks were coming 1 every 2 mins, and the diff was down at 0.00002414, so i'd repeat.....worked great for about 1 month or 2, then the other miners left, i broke the chain, and couldn't send coins to the 1 and only exchange. The coin still exists, it still has only 1 connection, but no explorer and no exchanges, and still exhibits the exact same behaviour.....

Any way thats my guess.....hopefully someone can find the whitepaper and that should have the diff retarget details in it.


For my part thou, i'd love everyone to mine this coin even less, cos with my 1 x 1060 3GB running @ 50% power, i cannot come even close to covering its power costs, however, if the diff were to drop below 8, then a single 1030GT (25 watt) would easily win blocks, and then if the diff dropped down to 7 and below, then the coin could be easily mined using a 6 or 8 core pc using grahams' wallet with built in miner.
TBH if we all stopped gpu mining, and only used the in wallet miner, once the diff dropped enough, we would get the same coins for literally no cpu power....then the coin might me worth mining. Lets face it, its never going to be more than a 1 sat coin, so the quicker we can lower the diff, and therefore lower the overall hash and cost to mine, the better. Then we can all fill our bags, then in about 6months to a year, it needs a real good pump, and we can all retire Smiley
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June 02, 2021, 04:46:53 PM
 #1415

1101067
3905d67ad3...   +1003.66754629   0.00000000   OK   09:36:07 08/03/2021
1101033
9a275ffdd5...   +1007.41278555   0.00000000   OK   08:57:06 08/03/2021
1100992
364e7f0457...   +1000.06218336   0.00000000   OK   08:06:07 08/03/2021
1100958
b468a22307...   +1006.27759303   0.00000000   OK   07:27:06 08/03/2021
1100921
fbaf38a498...   +1000.77707421   0.00000000   OK   06:36:07 08/03/2021
1100897
822805ac01...   +1000.22591080   0.00000000   OK   05:57:06 08/03/2021
1100857
18427de1c4...   +1000.15272519   0.00000000   OK   05:06:06 08/03/2021
1100823
4aef82c2fb...   +1001.32324665   0.00000000   OK   04:15:07 08/03/2021
1100788
65f4057845...   +1007.08727809   0.00000000   OK   03:36:06 08/03/2021
1100758
088d877e6a...   +1008.32886653   0.00000000   OK   02:45:05 08/03/2021
1100731
0b1c548469...   +1007.45672812   0.00000000   OK   01:54:06 08/03/2021
1100717
cdf92e7d08...   +1003.12011732   0.00000000   OK   01:15:07 08/03/2021
1100685
5788d9c741...   +1007.12455927   0.00000000   OK   00:33:07 08/03/2021
1100665
d426ebd0a8...   +1008.10140777   0.00000000   OK   23:54:06 07/03/2021
1100630
a477f5c424...   +1006.05571180   0.00000000   OK   23:12:08 07/03/2021
1100584
7769ddfa70...   +1002.09770111   0.00000000   OK   22:33:06 07/03/2021
1100548
6051523ef9...   +1003.42751877   0.00000000   OK   21:42:07 07/03/2021
1100527
3977551c13...   +1002.41646186   0.00000000   OK   21:12:06 07/03/2021
1100500
fcf5a90d0d...   +1003.23516997   0.00000000   OK   20:33:06 07/03/2021
1100466
5093f5c68f...   +1002.76044727   0.00000000   OK   19:51:06 07/03/2021
1100436
fb551cd52b...   +1006.30450988   0.00000000   OK   19:12:06 07/03/2021
1100422
2f68613840...   +1005.27385475   0.00000000   OK   18:42:06 07/03/2021
1100393
eca969eb27...   +1007.24999394   0.00000000   OK   18:00:06 07/03/2021
1100353
04a1588b2b...   +1001.55566346   0.00000000   OK   17:12:07 07/03/2021
1100327
7f35146b20...   +1000.27305002   0.00000000   OK   16:42:06 07/03/2021
1100284
af98a92204...   +1008.21185792   0.00000000   OK   16:00:06 07/03/2021
1100205
cc03623e4b...   +1004.19525209   0.00000000   OK   15:30:06 07/03/2021
1100179
41e7a22297...   +1008.71403214   0.00000000   OK   14:51:06 07/03/2021
1100154
312d7992fa...   +1000.02834920   0.00000000   OK   14:21:06 07/03/2021
1100119
bdf65e4cb6...   +1001.72623867   0.00000000   OK   13:39:06 07/03/2021
1100101
2e2bf23434...   +1005.49985118   0.00000000   OK   13:09:06 07/03/2021
1100059
b2e11c5148...   +1007.36684982   0.00000000   OK   12:30:06 07/03/2021
1100037
91e0a1985f...   +1002.83335557   0.00000000   OK   11:57:07 07/03/2021
1099992
1ed43cb3a0...   +1005.28958256   0.00000000   OK   11:06:06 07/03/2021
1099968
8d249b3234...   +1007.97271861   0.00000000   OK   10:36:06 07/03/2021
1098291
779b984cc7...   +1000.36496782   0.00000000   OK   09:48:07 07/03/2021
1098260
4e3c67def9...   +1005.57859101   0.00000000   OK   09:15:06 07/03/2021
1089303
973d5fccbc...   +1005.76925362   0.00000000   OK   19:27:07 26/02/2021
1089271
65e4a1e942...   +1001.66197101   0.00000000   OK   18:18:07 26/02/2021

Those block numbers 1089271..1101067 don't look right to me.

The first height, 1089271 is actually from Tue Nov 10 2015 04:48:52 GMT+0000.

Code:
{
  "hash": "1b92606f98a2e58f8bd4f9fd2761a3cbe80ffa3ea8d9fd49867d50aa2d1a6e07",
  "confirmations": 2415892,
  "strippedsize": 201,
  "size": 201,
  "weight": 804,
  "height": 1089271,
  "version": 2,
  "headerhash": "e4b38106a5ab28d0c309452d030b687e237cd7c5a4f202a966290a95c210bac0",
  "versionHex": "00000002",
  "merkleroot": "72b9ec6872f50edb73102c9c7e4a131974a152a303916b90ec4f0a4e8d291623",
  "tx": [
    "72b9ec6872f50edb73102c9c7e4a131974a152a303916b90ec4f0a4e8d291623"
  ],
  "time": 1447130932,
  "mediantime": 1447126638,
  "nonce": 366105561,
  "primechainmultiplier": "23377665770782809200",
  "bits": "08fe1ff6",
  "difficulty": 8.992675185203552,
  "chainwork": "000000000000000000000000000000000000000000000000000010078f0f410b",
  "nTx": 1,
  "transition": 9,
  "primechain": "TWN00.000000",
  "primeorigin": "2418290610329150623773687133567610215196245824803210430165269096060232090523863171712843164595200",
  "previousblockhash": "f2317ed27e3ad42a00cb8b02189b7875da17d90424e38c6a3419eb84c30cbb22",
  "nextblockhash": "829f56f552d9eeadae62025aebcb04bd6ac373afe5cd0612c9157261d6210d23"
}

The last height, 1101067 is actually from Sat Nov 21 2015 16:05:23 GMT+0000.

Code:
{
  "hash": "696855c709c97635132433c730ac45905cfc44f787ff3cdb2a37898a580a380c",
  "confirmations": 2474703,
  "strippedsize": 201,
  "size": 201,
  "weight": 804,
  "height": 1101067,
  "version": 2,
  "headerhash": "eec41749b39864f5cb7818aa2bbc2553d7c9f8fcedbff496c26d11bb7d959a84",
  "versionHex": "00000002",
  "merkleroot": "598667627def23eb92b46f853aab1c69c49b7efebd97f97dc73b9c349869187f",
  "tx": [
    "598667627def23eb92b46f853aab1c69c49b7efebd97f97dc73b9c349869187f"
  ],
  "time": 1448121923,
  "mediantime": 1448115238,
  "nonce": 1718020612,
  "primechainmultiplier": "12153070004435888640",
  "bits": "08fb6028",
  "difficulty": 8.981935977935791,
  "chainwork": "00000000000000000000000000000000000000000000000000001018a3938025",
  "nTx": 1,
  "transition": 9,
  "primechain": "TWN00.000000",
  "primeorigin": "1312494137708892454461758721723977354712236141821654798902430944422957895343783884342144922920960",
  "previousblockhash": "1c521a740e2a5533f7d1f76e7a8f409e4bdae4e00a02c7b187b268d4daf605e9",
  "nextblockhash": "3f937e2307f53d9ec509eab6e9f0d2a6c4441a45c8603f48a517598833e76664"
}

Therefore, it doesn't appear you are mining datacoins on the Datacoin block chain.

Best Regards,
-Chicago
gjhiggins
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June 02, 2021, 04:47:14 PM
 #1416

That is only my guess, perhaps Graham or someone else has the retarget figures?
According to the comment - // NOTE: PRIMECOIN continuous target adjustment on every block. The implementation is deeply technical

...hopefully someone can find the whitepaper and that should have the diff retarget details in it.
Sunny King's Primecoin white paper - I don't have enough maths background to understand it.

Co-incidentally, investigating this turned up the fact that the CalculateNextWorkRequired call in pow.cpp and pow.h is effectively unused:

Code:
$ grep -rn CalculateNextWorkRequired datacoin-core/src/
datacoin-core/src/test/pow_tests.cpp:25:    BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, chainParams->GetConsensus()), 0x1d00ffff);
datacoin-core/src/test/pow_tests.cpp:37:    BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, chainParams->GetConsensus()), 0x1d00ffff);
datacoin-core/src/test/pow_tests.cpp:49:    BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, chainParams->GetConsensus()), 0x1c02b305);
datacoin-core/src/test/pow_tests.cpp:61:    BOOST_CHECK_EQUAL(CalculateNextWorkRequired(&pindexLast, nLastRetargetTime, chainParams->GetConsensus()), 0x1d00e1fd);

datacoin-core/src/pow.h:22:unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params&);
datacoin-core/src/pow.cpp:54:unsigned int CalculateNextWorkRequired(const CBlockIndex* pindexLast, int64_t nFirstBlockTime, const Consensus::Params& params)


Cheers

Graham

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June 02, 2021, 05:03:47 PM
 #1417

Any chance of a bootstrap please?
Takes for every to download chain, and my other roaming directories don't work with this version without a full re-index
I presume you want a snapshot of the chain rather than a bootstrap.dat file? I'll have to make it available from my Mega.nz a/c - bootstrap.dat.xz is 1.2Gb, dtcchain-snapshot.zip is 2.6Gb, exceeds Github's limit: “We don't limit the total size of the binary files in the release or the bandwidth used to deliver them. However, each individual file must be smaller than 2 GB.”

fwiw, it took about 4 hours to sync from 0.

Cheers

Graham
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June 02, 2021, 05:14:21 PM
 #1418

In other news:

Primecoin github repos has clones of eXtremal's solo and pool XPM miners, both CPU and GPU flavours which may well work with Datacoin and both of which have seen recent development activity:

https://github.com/primecoin/xpmminer

https://github.com/primecoin/xpmclient

The released cuda binary didn't work for me but ...

eXtremal's post of 2021-03-07 provides URLs for his XPM nVidia GPU binaries:
Quote
Update for NVidia version (with RTX 3xxx support), 460.xx or later driver recommended
Windows: http://coinsforall.io/distr/xpmclient-cuda-10.5-beta2-win64.zip
Linux: http://coinsforall.io/distr/xpmclient-cuda-10.5-beta2-linux.tar.gz
The Linux one worked out of the box for me, all I needed to do was change the URL to dtc.graymines.net and use my DTC addy (DNN2uuPUFrcwuKs29KwFHtR5ctRbio4H8Z)  - with reasonable results.

Cheers

Graham
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June 02, 2021, 05:46:09 PM
 #1419

Any chance of a bootstrap please?
Takes for every to download chain, and my other roaming directories don't work with this version without a full re-index
I presume you want a snapshot of the chain rather than a bootstrap.dat file? I'll have to make it available from my Mega.nz a/c - bootstrap.dat.xz is 1.2Gb, dtcchain-snapshot.zip is 2.6Gb, exceeds Github's limit: “We don't limit the total size of the binary files in the release or the bandwidth used to deliver them. However, each individual file must be smaller than 2 GB.”

fwiw, it took about 4 hours to sync from 0.

Cheers

Graham


No worries Graham, i set dbcache=4096 and maxmempool to 4096 and it seems to be re-indexing quite  quickly

Thanks for the offer though
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June 02, 2021, 05:48:50 PM
 #1420

That is the statistics from the exchange when I mined DTC on coinsforall. the numbers stand there
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