Topic: [ANN][PRA] Practice Coin - Learn by Doing - page 4. (Read 8384 times)

Ive just gotten into coin mining and gonna build a PC and compare results with that and my current rig.  Ill post benchmarks, details etc for this thing.  Seems like a better use of my time than playing video games.  Will have NVidia card not sure what yet, have 1080 right now, and ill try using NiceHash since it seems easy enough for now.

Planning on parameters:
6 min blocks - 240/day, with 100 coin reward. Halfing every 1000 days, three times total (50,25,12.5).
All 45,000,000 coins to be emitted in ~11 years (do check my math, please)
  [If folks feel strongly abut this, let's discuss HF in 10 years]
5 confirmations (there is no solid science behind 6) - 30 min
Bitcoin difficulty adjustment algo, every 1 hour (10 blocks) - can build-in a more sophisticated one later, but 1h should be quite responsive, without being way jerky.
BIP9 75/95% activation over 2 days (480 blocks).
Want Segwit, just for fun, and can active out-of-the-gate.
Looking for advice on accelerated BIP68,112,113 activation.
Checkpoints
2% pre-mine (900,000) to be used for promotions, bounties, private placement.
10% block reward fee - 5% goes to nodes operators, 5% for bounties, operations (details TBD and totally open for discussion)
VPS and seeder, mining pool and block explorer are TBD, and there are participants quite capable of contributing those.

As of today, still debugging re-hashing during the Genesis block generation, after parameters are updated. The code's been moved around mid-2015[0.11], but still no comments, and hard-coded constants are used exclusively.
Rather disillusioned by the state of the stock Bitcoin/Litecoin codebase. A commercial coder, a year out of a state college could not get away with this. If this is indicative of Core's engineering expertise, and the quality of improvements over past seven years, the technology is in trouble. But this is must be intentional, likely for "job security" reasons. Plus a 'hack' mindset, that coding style has to be obscure and terse. As if little code translates into a tight and fast executable.

Whatever, will get through it. Better yet, school me. Show me modifications to Litecoin 0.13.2.1 chainparams.cpp:115-118, that build and run. Say, simply change 50 to 100.

Also, it would be great if anyone can make the Litecoin Windows build work with the "Windows Sybsystem for Linux", that Bitcoin 0.14 now supports. It's quick and deterministic and is likely the way Bitcoin clones will be built going forward.
  Tear

Pretty sure that part has been vacant from The Official Bitcoin And Litecoin repos for some time, you can see on many altcoins what needs to be added and changed.

Status update:
Cloning the latest version of Litecoin - 0.13.2.1
All the guides are at least two years old and the codebase has been evolving.
The code is compiling now on Linux, but the Genesis block generation is still broken. Will keep you posted.
Any technical suggestions welcome, if they are based on the Bitcoin / Litecoin versions 0.12 or later.
  Tearo

Reserved.

Cant see a relationship between jealousy and a desperate craving to make another headless shitcoin. In 2015, we had much more icos, more page views, more posting in the threads. See forum stats to have a better understanding of what has changed since then. The purpose of a coin is to make money, nobody creates them for the sake of creating. Making the one takes roughly 4 hours.

Review of CryptoLife service offering
http://practicecoin.com/index.php/2017/04/13/cryptolife/

dfd1, the link you cite is kinda dated. Have you seen more?

To bounty this work, we need to spec exactly what we expect, perhaps also including what's already covered here and there, plus this and that and diagrams other things and references and links

PPT and video released under the BY-SA Creative Commons Licence, where they get attribution. Bragging rights and a link from our soon-to-be-famous practicecoin.com site are also included.

How about we frame it in terms familiar to the ETH bunch - each pitch in 1 ETH, which just happens to be around $50. I have a dozen or so ETH somewhere, from before the DAO incident. Where could we advertise the bounty, for the right folks to see it? I bet them ETH freaks would want to use a smart contract escrow for this
  Tearo

Soliciting input regarding PoW difficulty re-targeting generally, and in the context of Litecoin specifically.
http://practicecoin.com/index.php/2017/04/12/difficulty-re-targeting/

Related posts: http://practicecoin.com/index.php/2017/04/12/walletbuilders/
http://practicecoin.com/index.php/2017/04/04/free-cryptocoin-creator-build-coin/
Switching to work on Litecoin codebase directly.
  Tearo

Don't like the operation of the difficulty adjusting mechanism. It appears to be changing every block, or thereabouts, but then swings from blocks accepted every 10-15 sec, and then taking a break for a couple of minutes. From the page on their site for this distribution, it seems that Walletbuilders compiled in 64 sec block target, though I remember asking for 6 min (10/hour) blocks.

In the beginning of the initial run there were two ERROR messages:
 generated block is stale
Upon restart of the processes, hours later there were a dozen "stale" messages
And, some hours into the run, eight "timestamp too early" ones, though it seemingly recovered.

So, the interaction between the miner and the node, perhaps in the difficulty settings or some other timing related thing is off periodically. Don't like it, and not sure at all that I want to debug this codebase. Will do a little more work on launching in the cloud and may bail and go to building and running and modding Litecoin code.

Was looking to launch a stable chain that we can use among ourselves to award bounties and rewards with, but Walletbuilders may not be it. At this point also leery about spending time on the Build-a-Coin generated code, even though do have instructions on how to mod it. Anyone cares, or wants to take part?
  Tearo

For a time the miner created a situation that produced an error from the node, rejecting the block:
  coinbase timestamp is too early
Had to restart both programs, but yet to follow-up.
  Tearo

Herbet, right now running transaction validating and forwarding nodes does not pay directly, for any of the cryptocurrencies. Where is can help one's mining or transaction processing, it could be useful, but not as a standalone service to the network.

This is shortsighted, and I want to develop this ability, but do not know how one would do that automatically. ZClassic folks talk about such a feature. Any other places we can look for discussion, or better yet some code?
  Walter

Alright that sounds good. I have always wondered what those guys are offering. Is running a node profitable ? Early reward coins for me are the best. I say let the dumper dump I will collect and wait.

A tiny step for a typical Altcoin, but a huge leap in my learning process. No technology innovation here, as promised, only flattening the learning curve

practicecoind and practicecoin-qt built pretty much out-of-the-box on Ubuntu 16.04. Meaning it took me about two hours to find all the relevant snippets of instructions and get it done and smoketested. Do note that I've already built all kinds of Bitcoin and Zcash derivatives on this box, plus Litecoin, just before starting. So all the dependencies were already in place and the typical build steps were very familiar.

Yet to brave the Windows build, or even to look at the instructions.

Scrypt cpuminer2.4.5 needed an updated version of CURL, but then built fine. That and getting all the configuration options right took another two hours. But, the chain is running and mining. Though, not convinced that default Walletbuilders seeding works. Let me do a tad more due diligence and can provide access for private screenings.

Yet to look into how one sets up a mining pool, or a block explorer, or a seeder or a full node or a CPU miner inside a VPS instance. At some point will look into Docker and Google Cloud, and a smaller VPS provider, but AWS first.
 
I'm tempted to wait till after the Windows port is accomplished and all the other obligatory goodies just mentioned are in place, but can be very easily convinced otherwise, to solicit feedback and get help and schooling right away.
  Tearo

So, I paid my hard-earned 0.05BTC and got a drop of the Walletbuilders product.
If you are curious, or want to help me with some due diligence on it, drop me a line, please.
Binaries provided do pass a virus scan
Building from source now, on Ubuntu.
  Tearo

Lol , just because of that you make this coin,,
you must prepare all the thing to create a new cryptocurrency

They are pretty much the same thing, they allow you to connect to the wallet and sync without making a .conf or using addnode=

You will also want to read up on what pnSeed is and does to be thorough

what is this ?
practice coin,, a coin that build from learning or because from other reason ? 

here is the funniest reason

just because of your jealous than you make a new coin ?

This aint looking good. Too funky for my liking. Im not reading about it anymore, got much better things to do. But here is a piece of advice from me: look at cellulite coin and the progress it has made within past months. Its full of innovations and resembles all things that matter as its created by gospel singers for people that value cold robust tech and nothing besides that. Note that cellulite coin is currently targeting eth cap.