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Author Topic: [ANN] ParallelCoin - DUO - SHA256 + Scrypt | HardFork Soon!!! We are going Go!  (Read 59965 times)
trax0r
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September 22, 2018, 08:41:54 AM
 #561

New wallet development is under way:



Parallelcoin v1.2.1.2
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trax0r
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September 22, 2018, 08:42:57 AM
 #562

New wallet development is under way:




Also checkout the latest gitlab infos:
https://gitlab.com/parallelcoin/parallelcoin
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October 11, 2018, 12:39:45 AM
 #563

New wallet development is under way:




Also checkout the latest gitlab infos:
https://gitlab.com/parallelcoin/parallelcoin


Whats the ETA on the new wallet release, all is looking great so far Smiley

Also where is everyone hanging out, slack seems a little quiet lately, and there are just so many social hangouts I lose track lol Sad 
But what I do know is the team is still working hard on DUO, Ive been keeping a close eye on GITHUB and the regular updates are making me very excited for the coming months.

I'll take any freebies on offer Smiley
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October 11, 2018, 10:13:02 PM
 #564

Cool Keep Calm and Always Use CoinMiners! ParallelCoin is active in our pool!  Cool
You can use market wallet address for mining!

CoinMiners.Net Pool

10% Fee
Register-free Mining & Auto Payments
Server located at USA
http://coinminers.net
CoinMiners Community Discord : https://discord.gg/VJ8nCmP

And CoinDL just compiled ParallelCoin Windows Wallet  Cool

Reach from here : CoinDL.net – Cryptocurrecy Coin Downloads Repository - ParallelCoin

ʕ•̫͡•ʕ*̫͡*ʕ•͓͡•ʔ-̫͡-ʕ•̫͡•ʔ*̫͡*ʔ-̫͡-ʔʕ•̫͡•ʕ*̫͡*ʕ•͓͡•ʔ-̫͡-ʕ•̫͡•ʔ*̫͡*ʔ-̫͡-ʔ
ʕ•̫͡•ʕ*̫͡*ʕ•͓͡•ʔ-̫͡-ʕ•̫͡•ʔ*̫͡*ʔ-̫͡-ʔʕ•̫͡•ʕ*̫͡*ʕ•͓͡•ʔ-̫͡-ʕ•̫͡•ʔ*̫͡*ʔ-̫͡-ʔ
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October 13, 2018, 08:01:48 AM
 #565

New wallet development is under way:




Also checkout the latest gitlab infos:
https://gitlab.com/parallelcoin/parallelcoin


Whats the ETA on the new wallet release, all is looking great so far Smiley

Also where is everyone hanging out, slack seems a little quiet lately, and there are just so many social hangouts I lose track lol Sad 
But what I do know is the team is still working hard on DUO, Ive been keeping a close eye on GITHUB and the regular updates are making me very excited for the coming months.

Parellelcoin (DUO) dev and team is very active on Discord.
Please join there: https://discord.gg/uYm3sK
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October 13, 2018, 08:06:10 AM
 #566

Cool Keep Calm and Always Use CoinMiners! ParallelCoin is active in our pool!  Cool
You can use market wallet address for mining!

CoinMiners.Net Pool

10% Fee
Register-free Mining & Auto Payments
Server located at USA
http://coinminers.net
CoinMiners Community Discord : https://discord.gg/VJ8nCmP

And CoinDL just compiled ParallelCoin Windows Wallet  Cool

Reach from here : CoinDL.net – Cryptocurrecy Coin Downloads Repository - ParallelCoin
Thank you for adding Parallelcoin to your pool. Good to have more mining pools for DUO.
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October 16, 2018, 05:38:35 PM
 #567

No fresh blocks  Huh


trax0r
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October 17, 2018, 06:20:18 AM
 #568

No fresh blocks  Huh



Either noone is currently mining or the mining difficulty is again so high, that finding a new block is very hard.
But after checking the block explorer it seems that many new blocks have been found in the last hours.. so everything is fine.. Smiley
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October 24, 2018, 01:17:50 PM
Last edit: October 24, 2018, 01:28:10 PM by cslinz
 #569


Algo switched from sha256 to scrypt:


DUO mining with scrypt algo on http://cryptopool.at

1% fee, very fast payout every 30min after maturity

-o stratum+tcp://cryptopool.at:3433 -u <WALLET_ADDRESS> -p c=DUO,mc=DUO
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November 03, 2018, 03:33:24 PM
 #570

I have many of the DUO-coins. When will it rise again?Huh
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November 05, 2018, 10:45:04 AM
 #571

I have many of the DUO-coins. When will it rise again?Huh

Nice to hear you are also a DUO holder.

Well, I cannot tell, when DUO will rise again (depends on what you define for a rise - in the last 2 days the coin did rise about 500-1000 satoshi).

But what I can tell is that the development of the new go-language DUO wallet (new Parallelcoin wallet) is ongoing since many months and on last weekend the dev managed to load the full blockchain (a full node) with the new developed wallet.

So there should be a first release of the wallet in the next weeks. The question is, which of the many new features that are planned, will be part/implemented and released in the first new go-language DUO wallet.

I advise you to join Discord, where on regular basis new steps of the development are posted and further news are available, too.

Follow this link: https://discord.gg/MjTxkk

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November 05, 2018, 01:56:58 PM
 #572

Shocked Shocked Shocked
First fully working full DUO node just got released (please note, it is still alpha)  Cheesy Wink

You can check it out here:
https://github.com/parallelcointeam/pod/releases/tag/v0.1.0alpha

There are binaries for all architectures (Windows and Linux). It should be possible to use this to run a node to solo mine to.

Anyone who wants to try it please let the dev (loki) know if you bump into any problems.

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November 13, 2018, 02:05:29 PM
 #573

Again good news: Today an update of the suite of core apps was released.  Cool

It is the suite of core apps for Parallelcoin cryptocurrency network - parallelcointeam/pod

https://github.com/parallelcointeam/pod/releases/tag/v0.1.1-alpha

The full node and the CLI client are both fully functional and seemingly bug-free.  Wink
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November 14, 2018, 07:18:19 AM
 #574

DUO Market on Cryptopia has been paused today as on our (DUO team) request.

This was necessary as there are ongoing attacks on the DUO blockchain.

Our dev is looking into the issue and we will solve this problem within the next days.

Stay tuned for more infos.

You can also join DUO on discord for the latest news. Follow this link: https://discord.gg/eEunhn

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November 14, 2018, 07:22:58 AM
 #575





Please let us know the projects that you want to be listed.

Fee


Sell: 0.5%
Buy:0.5%


https://bitcointalk.org/index.php?topic=5068678

Dev Team: info@openbit.online
Market : market@openbit.online
Discord:https://discord.gg/E3Fh9ZA
Add Coin:https://market.openbit.online/Article/detail/id/121

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November 22, 2018, 11:28:15 AM
 #576

Good news today Cheesy :

The Core blockchain client for the Parallelcoin network >>> Beta release <<< is now ready for testing:

https://github.com/parallelcointeam/pod/releases/tag/v0.1.2-beta

Please let loki know any bugs you might find.
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November 24, 2018, 10:54:33 PM
 #577

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

As you can all see from @traxor's updates, I have been very very busy.

This morning I finished up with getting the wallet daemon (mod - because it's modular, and that's a nice short name). The new full node and wallet are based on btcsuite btcd and btcwallet, with all the necessary changes for it to conform to the existing consensus.

They can be found here: https://github.com/parallelcointeam/pod and https://github.com/parallelcointeam/mod I will be making a full release with installation packages for Windows, Mac, Debian/Ubuntu, Redhat/Suse and I have an account at the arch linux AUR and I will make a PKGBUILD for it also, and it will be available through the AUR (I'll make a binary, version pinned build and a rolling master branch build).

The new full node runs two separate RPCs for miners and pools to use, defaults to 11048 for sha256d and 11049 for scrypt. The full node, CLI controller and wallet daemon all autoconfigure for localhost access and integrates the full node and wallet automatically, both `podctl` and `mod` on first run with no configuration will copy the RPC credentials so you can get up and running quick and easy. The wallet daemon listens by default to port 11046

It got quite exciting a few weeks back as somebody with access to a lot of mining power started to put out blocks with different version numbers, which it turns out the old client treats as sha256d blocks. Then they started using 'Big S' signatures, which are part of the hypothetical signature malleability double spend attack - and then sure enough, logs started showing blocks coming in that were rejected because the outputs were already spent. The latest seems to be that they are trying to mine a side chain, but so far it looks like the rest of the miners have enough hash power to keep the head at the front.

Our secret shopper, whoever they are, or maybe they are just a legitimate Wink would-be-blockchain-robber, has ensured that it will be necessary to upgrade the protocol significantly. These are the changes I have in mind:

- - The new client will automatically set the equivalent of a checkpoint at about 288 (2 days) blocks, so that it will automatically block attempts to create side chains and push them ahead with a 51% attack.

- - The difficulty adjustment needs to work from a longer timespan than 50 minutes. I will set it to 4032 blocks, approximately 2 weeks. This is to address the problem that short term bursts of greatly increased hash power is leading to miners printing 10 blocks within a minute and then nothing for hours, which is entirely unsuitable for a real world transactional currency. Extending the averaging window will mean that the difficulty adjusts more slowly and can't be pushed up artificially by timed bursts.

- - Block versions have been messed up by the secret shopper, but after the prescribed hardfork block height they will again be properly enforced and I will design an extensible protocol similar to the one in bitcoin, that allows us to in the future upgrade the protocol using BIP9 softforks.

- - The peer to peer and RPC protocols will be enhanced with a messsagepack binary format protocol and use the OTR/Diffie Hellman Perfect Forward Secrecy encryption protocol, as it is patently retarded to use OpenSSL/GNUTLS, which is based on a web of trust model - which means you have to faff about with certificate authorities to just get it connected. The mechanism will be extended to enable users to make black or whitelists. Web of trust protocols are not identity-secure, as you sign public keys that afterwards the signed keyholder will advertise therefore your approval of them. There might be some purpose to this but I can't think of it. This encryption protocol will also be added to the peer to peer protocol, because in my opinion, even though it's public information, the propagation pattern should be protected at least a little bit, as locations enable attacks.

- - I am planning an SPV wallet, which will have native compiled GUI interface available. The SPV wallet is the testbed and initial showcase/prototype for the peer to peer network extensions I have planned.

- - The first application of this will be in the implementation of a transaction proxy relaying, like the outbound connection component of the Tor network. The nodes will all have a unique identifying EC keypair (ed25519, natch) which will be constructing a wrapper around its transaction broadcast with three layers designating the 3 peers that will relay the message. Each node will only know where it came from and where it's going but not whether it is the first, second or last hop before the destination node.

- - From there on, there will be built wrappers and sockets and interfacing libraries that can be used by other applications to connect to the network and use it to find specific subprotocol peers to enable other types of distributed applications, both centralised/federated type applications (eg, diaspora, paxos/raft/sporedb and other federated WoT database protocols) and trust-computed (for example like the Steem reputation system) and trustless (yes, potentially allowing multiple cryptocurrencies to interface directly through the network) peer to peer protocols. In other words, I am aiming to make the parallelcoin network the wires to connect a whole ecosystem of applications.

When I have completed the releases, with all the installers made for all of the above mentioned platforms (and if anyone has specific requests) - and already you can see on the newest release that @trax0r posted, there is literally binaries for almost every platform in existence, I will make a new ANN thread for discussion and feedback.
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November 29, 2018, 07:28:07 AM
 #578

Just a minor update regarding planned hardfork changes...

Parallelcoin suffers from a problem with its' difficulty adjustment because of how it is computer. It bases the difficulty adjustment of the measurement of the time between the latest and 9 previous blocks of the same algorithm. This is absurdly short, and typically ranges between 50 and 100 minutes. As such, it is highly vulnerable to what I call a 'rhythmic hashpower attack'. For this, I have two main strategies:

  • A long number of blocks, 4032, being approximately 2 weeks at 5 minute blocks, randomly 50% are selected, the top and bottom 12.5% are removed and the average is computed from this, eliminating sequence and outliers causing the mean to be inaccurately representative of block times. This is to ensure that no type of sequence or rhythm can control the adjustment, and it uses a much longer timescale so it also does not fluctuate wildly up and down chasing the impossible regularity of a poisson process, and so short periods of high hash power do not move the mean above the actual mean.
  • The weights of the 4032 past blocks are added and at the mean of the block weight, difficulty is further adjusted up or down based on a new block's proportion to this average. Below this value difficulty is nominal, above this, the nominal difficulty is multiplied by the factor above the average, and then squared. This does not affect the nominal difficulty, its purpose is to discourage processing all of the blocks when they bank up in one block, meaning more miners get a share of the block fees.

The second part is based on the method used by Freshcoin, which mines most of the supply early. This coin doesn't do that, but it instead has the problem that most blocks have no transactions put in them and they very often are spewed out at 10 at a time within a minute. By raising the difficulty required according to over-average numbers of transactions in a block, it ensures that these high powered pools are not able to deny the loyal, smaller mining pools and solo miners from getting blocks. Possibly I may also consider that below the mean block weight the difficulty scales downwards, meaning that even maybe solo miners have a decent chance of being able to clear one transaction.
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December 07, 2018, 03:32:14 PM
 #579

Just a short little note to update on progress. For the last week, in between the many distractions that have come all at once, I have been developing an improved difficulty adjustment algorithm. The existing one is very prone to oscillation, a problem further compounded by the volatility of hashpower being pointed at the chain.

The new algorithm uses a fairly simple cubic curve that is more or less just, a cubic curve, calibrated to cross at 1,1. It uses the curve against the variance measured by a fixed number of past blocks. The old algorithm attempted to separate them and walks backwards through the chain to gather the last 10 per algorithm, and  then uses a flat linear adjustment, which is basically y=x, or  in other words, if the average time is under by 20%, it will reduce the target by 20%. This is a terrible way to do it, as it increasingly encounters aliasing distortion close to the target caused by the 1 second granularity of the block timestamps.

https://github.com/parallelcointeam/pod/blob/master/docs/parabolic_filter_difficulty_adjustment.md

Two main strategies are used as described in the document above, one is the cubic curve, and the other is that after the adjustment is made against the curve, the last two bits of the 'Bits' are flipped, which ensures that the target is unlikely to fall into a resonant cascade and getting stuck oscillating between long and short blocks over - in this case, typically 4-12 hour periods. This kind of extreme variance is very problematic for users because they literally cannot know when even the first confirmation will come in, better than 'about maybe half a day'. Intentionally adding noise to reduce these kinds of interference and distortion are well proven especially in radio and digital signalling technology in general, it is used by audio devices to reduce unintentional frequencies caused by the samplerate, it is used in most modern IPS and better LCD displays (they used to just do a checkerboard, the fuzz is much nicer on the eyes).

Oh, and one last thing, it does not filter out algorithms from the computation. The minimum target for scrypt blocks on the parallelcoin network is currently the smallest possible value, 7 at the front then lots of f's. Because there isn't many miners using this algorithm, at times the difficulty *will* drop to zero and *will* mean 5-10 blocks can be spewed forth suddenly. Being that mining is supposed to be about the transactions, and reward for doing that work, the incentives are all upside down. So the new algorithm only looks for the most recent one, and uses all of the previous blocks no matter which difficulty - the past difficulty adjustments are irrelevant, what is important is the timestamps. By not distinguishing between algorithms in this computation the block rhythm should be better regulated.

I am basically satisfied with the workings of the new adjustment now, and as you can probably imagine, it's more about staring and watching grass grow than actually coding, so I'm glad and just had to draw a line in the sand about how long I would fiddle with it. There is probably significant improvements possible, but they would be pushing the boundary of diminishing returns. As it stands, the variance from the target is typically held within 20%, and the dithering helps to ensure that strings of short blocks happen far less frequently, now it appears to be the case that more often they come in alternating or sometimes 2, and less frequently, 3 blocks at a time. Also, the very wide variance caused when pool miners dive bomb the chain will be greatly diminished, as such short blocks trigger very big difficulty adjustments, and instead of the current spates of 5-10 blocks under 10 seconds between, it is unlikely that more than 3 will usually happen so quickly, and hopefully they hang around long enough to get a few more at which point the timing will be more normal.

Now it will get a *little* more interesting for me. I have to get the scrypt CPU mining working properly again, I think the two RPC ports properly produce block templates, but this will be checked and fixed if it is not. Then I will be adding more proof of work algorithms. The main thing that will determine what makes the cut for the first hard fork will be that the hash functions are in a Go package. Most of them are covered. I am unsure which, at this point, and I recall looking at Ethash and thinking it would be a huge pain, but Equihash, Cryptonote 7, possibly Cuckoo, x11, and maybe some others like Myriad, Keccac, Skunk and similar. I will aim to ensure that miners with idle GPU capacity can help secure the network against hashpower attacks. Adding merged mining is a considerable undertaking, and if it is going to be done it will be in the second hard fork, if it seems necessary to do this.
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December 08, 2018, 07:23:59 PM
 #580

Thanks for the update lokiverloren, very informative as usual Smiley
I hope others appreciate this great work as much as me Smiley
Im a long time DUO holder, and can see a very good future Smiley

I'll take any freebies on offer Smiley
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