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Author Topic: [ANN][GAP] Gapcoin - Prime Gap Search - New Math Algo - CPU / GPU - Zero Premine  (Read 281863 times)
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November 08, 2020, 12:31:01 PM
Last edit: March 15, 2021, 11:09:04 AM by BitcoinFX
 #2241

N.B. This post is for TESTNET only / Alpha Beta release of an implementation of the 0.16.3 reference client for the Gapcoin network

Reporting successful compile of gapcoind / gapcoin-cli (from source) on Ubuntu 18.04 ...

Code:
{
  "version": 160300,
  "protocolversion": 70015,
  "walletversion": 159900,
  "balance": 0.00000000,
  "blocks": 10496,
  "timeoffset": 0,
  "connections": 1,
  "proxy": "",
  "difficulty": 18.02478675667962,
  "testnet": true,
  "keypoololdest": 1604837394,
  "keypoolsize": 1000,
  "paytxfee": 0.00000000,
  "relayfee": 0.00001000,
  "warnings": ""
}

TESTNET

> cd gapcoin-core/src && ./gapcoin-cli getblockhash 1
f527b54f02e936cdde8e234a28bbf996991ef1623be27237db1be430b14fbe8e

> cd gapcoin-core/src && ./gapcoin-cli getblockhash 10496
aac33c1e2ef9faed94ddf0bf7e428723a9f922e2ef9462ee7708745c4f1bab9f

...

example TESTNET .conf

Code:
gen=0
testnet=1
listen=1
daemon=1
server=1
port=19661
rpcallowip=127.0.0.1
rpcport=19609
rpcuser=YOURgapcoinRPCchangethis
rpcpassword=YOURgapcoinRPCpasschangethis
addnode=testnet-seed.gapcoin.network:19661
addnode=testnet.gapcoin.network:19661

> cd gapcoin-core/src && ./gapcoin-cli setgenerate true 1

> cd gapcoin-core/src && ./gapcoin-cli setgenerate false

Etc.,

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November 08, 2020, 04:47:50 PM
Last edit: November 09, 2020, 10:52:25 AM by BitcoinFX
Merited by cryptomaxsun (1)
 #2242

...snip...

Good luck!

Welcome! @cryptomaxsun glad that you eventually got everything set-up and mining!

You have also reminded me to upload a newer version of the Gapcoin Blockchain to: https://gapcoin.network/downloads/Gapcoin_blockchain.zip

Unzipping the blockchain to the relevant data dir is still the fastest way to get started with mining ...

## Operating System - Default gapcoin datadir - Typical path to configuration file i.e.
## Windows - %APPDATA%\Gapcoin\ - C:\Users\username\AppData\Roaming\Gapcoin\gapcoin.conf
## Linux - $HOME/.gapcoin/ - /home/username/.gapcoin/gapcoin.conf

Always back-up your wallet.dat before unzipping and/or upgrading !

N.B. v0.9.4 is still the current mainnet release (v0.9.2 for windows).



EDIT: additional

Great News!

c-patex Exchange finally added Gapcoin!

GAP Exchange / BTC Markets at:
- https://c-patex.com/markets/gapbtc

GAP Exchange / LTC Markets at:
- https://c-patex.com/markets/gapltc

Mind the Gap !  Grin

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November 09, 2020, 02:51:08 PM
 #2243

Hello All,

I would like to suggest a potential exchange in Unnamed Exchange, https://www.unnamed.exchange/.  It is a fast-growing exchange with many coins and an active trollbox with tipping.  Volumes are increasing, which makes it worthwhile as each new coin is added the population increases and it is increasing thru active campaigns.  The exchange is transparent and honest.  It is a very affordable listing at 0.05 BTC, so it is one to be considered.

Cheers,
Waya

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November 09, 2020, 03:16:06 PM
Last edit: November 09, 2020, 03:27:43 PM by BitcoinFX
 #2244

Hello All,

I would like to suggest a potential exchange in Unnamed Exchange, https://www.unnamed.exchange/.  It is a fast-growing exchange with many coins and an active trollbox with tipping.  Volumes are increasing, which makes it worthwhile as each new coin is added the population increases and it is increasing thru active campaigns.  The exchange is transparent and honest.  It is a very affordable listing at 0.05 BTC, so it is one to be considered.

Cheers,
Waya


Hey waya,

Thank you for the information and suggestion. I have previously contacted Unnamed Exchange and they didn't mention a listing fee at that time.

- https://bitcointalk.org/index.php?topic=822498.msg54663677#msg54663677

TBH I won't pay listing fees. However, if anyone in the Gapcoin community should chose to pay it, then so be it.

Your post here tells me that in time, perhaps, many exchanges will (again) be listing Gapcoin themselves.

I for one, would rather raise 0.05 BTC to help Graham (and others) with development efforts ...

Cheers!

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November 09, 2020, 10:09:02 PM
 #2245

I for one, would rather raise 0.05 BTC to help Graham (and others) with development efforts ...
Given the persistent general reluctance of hodlers to fund the block explorer, I can't see anything like that happening. I may be cynical but I get the sense that even publishing a donation address would simply be an invitation to a disappointment that I'd prefer not to make tangible.

Cheers

Graham
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November 10, 2020, 02:31:27 AM
 #2246

I for one, would rather raise 0.05 BTC to help Graham (and others) with development efforts ...
Given the persistent general reluctance of hodlers to fund the block explorer, I can't see anything like that happening. I may be cynical but I get the sense that even publishing a donation address would simply be an invitation to a disappointment that I'd prefer not to make tangible.

Cheers

Graham

I feel like Redman when someone asks for a fee to do something that makes their service better...  https://www.youtube.com/watch?v=rTNl5QAO9WQ

I've paid in the past, but it never works out well.  It's similar to buying "Netflix" with Bitcoin.  It works while it works and then poof!


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November 10, 2020, 10:49:27 AM
Last edit: November 10, 2020, 11:37:07 AM by BitcoinFX
 #2247

Indeed.

I've contacted Fides Exchange - https://www.fides-ex.com/ - through the forum to request that they might consider listing Gapcoin.

Fides already has Riecoin listed, so fingers crossed - https://bitcointalk.org/index.php?topic=5215588.0

...

Also filled out the request listing forms at tradeogre.com , crex24.com and atomicdex.io

...

SouthXchange has a voting system for adding new coins here ...
- https://main.southxchange.com/Home/Vote#new-coins

However, the add coin listing requires a google form with a login ...
If someone from the community would like to add Gapcoin for voting ... ?
- https://docs.google.com/forms/d/11IStGmLIVVFWQrqEwkRbHcGK0PlYFIdssvxcPChzf_s/

Other community and traders recommendations for exchanges are always welcome!

Onward.

Cheers!

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November 10, 2020, 11:35:11 AM
 #2248

Awesome steps forward

Any idea on someone who could help with the GPU miner?

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November 10, 2020, 04:05:13 PM
 #2249

Awesome steps forward

Any idea on someone who could help with the GPU miner?
Unfortunately, the task is unlikely to hold intrinsic interest for anyone with the necessary skill set and I doubt the remaining community has the resources to fund a jobbing programmer.

In my implementation of the upgrade of the Gapcoin reference client from 0.9 to 0.16, I've had the inestimable benefit of receiving technical advice and guidance from James (aka barrystyle). He has observed that the GapMiner code which interfaces with the node's RPC-API commands is quite antiquated and ideally should be swapped out for a modern version. Indeed, I had to re-implement the code providing the RPC-API getwork call used by the Gapcoin miner, functionality which had been removed from the Bitcoin codebase back in v0.10 (https://github.com/bitcoin/bitcoin/blob/047a89831760ff124740fe9f58411d57ee087078/doc/release-notes.md#0100-change-log). These days getblocktemplate is where it's at.

Also the degree of GPU/CPU advantage is rather unclear. ATM, my server reports 28 active nodes, the hashrate is around 32MHps and 2 threads on my i7 CPU laptop yield around 300KHps. I can only invite you to do your own arithmetic guesswork as to what proportion of the network hashrate derives from GPU processing and what kind of hashpersec advantage GPU brings over CPU. Unless someone would care to provide actual data?

Cheers

Graham
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November 11, 2020, 01:15:43 PM
Merited by xandry (2), cryptomaxsun (1)
 #2250

gjhiggins Thanks for the detailed answer!
As I understand it, you are the only person who has continued to develop the gapcoin.
I could find a person who could compile the gui-wallet 0.9.4 for Windows, but there is a question of trust, you need a trusted person so that there are no unpleasant surprises.
I did, eventually, manage to successfully cross-compile a Windows64 version of the v0.9.4-gap branch which might tide people over during the interim period before everyone's switched over to the 0.16.3 reference client¹. Oh, and I managed to track down and fix that bignum divide-by-zero error that people occasionally encountered.

If you consider me to be a trusted person, you can download a windows setup.exe from https://mega.nz/file/ecsi2QDC#hzccuRIreGDqEz3EUgImEiOUTV9dk93_dfIxKpSPK2s

¹ Current network composition:
104.236.168.125Satoshi:0.9.2listening
138.197.159.202Satoshi:0.9.2listening
138.68.172.174Satoshi:0.9.2listening
139.59.103.137Satoshi:0.9.2listening
139.59.57.170Satoshi:0.9.2listening
199.247.26.15Satoshi:0.9.2listening
209.250.241.75Satoshi:0.9.2listening
51.255.157.116:38120Satoshi:0.9.2
95.179.139.125:10503Satoshi:0.9.2
118.69.72.95:58915Satoshi:0.9.2
193.233.60.184:42352Satoshi:0.9.2
83.220.173.21:40569Satoshi Gapcoin Clan:0.9.3
185.167.160.219:50792Satoshi Gapcoin Clan:0.9.3
180.149.125.139:44823Satoshi Gapcoin Clan:0.9.3
185.140.53.3:48640Satoshi Gapcoin Clan:0.9.3
185.38.175.71:42896Satoshi Gapcoin Clan:0.9.3
185.10.68.51:36144Satoshi Gapcoin Clan:0.9.3
59.115.112.9:56168Satoshi Gapcoin Clan:0.9.3
171.25.193.25:22543Satoshi Gapcoin Clan:0.9.3
188.120.235.117:38401Satoshi Gapcoin Clan:0.9.3
192.248.174.77:42530Satoshi:0.9.4
5.9.193.21Satoshi:0.9.4listening
51.148.146.204:52438Satinki:0.16.3(my client)

Currently, the 0.16.3 reference client has certain key features temporarily disabled because to enable them would cause a chain split across the 0.9/0.16 boundary, specifically i) the CHECKLOCKTIMEVERIFY script OP (which is required to enable a coin to be traded on Open Decentralised Exchanges) and ii) Segwit (the Bitcoin transaction privacy enhancement). And, whilst the Replace-by-Fee option (which enables the user to bump up the fee of a transaction to improve the likelihood of the tx being included in a mined block) isn't actually disabled, txs which use it will not be broadcast by 0.9 reference clients.

There is an opportunity for discussion on how to proceed to migrate the chain to take advantage of the additional security offered by the 0.16.3 reference client as well as the new features. Or not (as a curator rather than a developer, I'm easy either way).

Cheers

Graham

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November 11, 2020, 03:25:40 PM
Last edit: November 11, 2020, 06:24:43 PM by cryptomaxsun
 #2251

gjhiggins , Thanks, downloaded, launched. Everything is OK, only in mining you cannot change the number of threads with the slider, but these are trifles.
You can tell more about the function Notary ?

And more about the testnet, I downloaded it and launched it, everything is fine, mining is good, I found a lot of blocks. How long will the testnet run?
And what is required from ordinary users? How can they help? I keep my testnet wallet running all the time, but stopped mining.





Edit.

SouthXchange has a voting system for adding new coins here ...
- https://main.southxchange.com/Home/Vote#new-coins

However, the add coin listing requires a google form with a login ...
If someone from the community would like to add Gapcoin for voting ... ?
- https://docs.google.com/forms/d/11IStGmLIVVFWQrqEwkRbHcGK0PlYFIdssvxcPChzf_s/


I filled out the form and now we are on the list.
I had some coins and voted.

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November 11, 2020, 04:10:55 PM
Merited by xandry (2)
 #2252

Currently, the 0.16.3 reference client has certain key features temporarily disabled ... ii) Segwit (the Bitcoin transaction privacy enhancement)

In respect of the 0.16.3 reference client, subscribers to this thread might care to familarise themselves with the extended key and transaction concepts inherited from Bitcoin. To this effect I have cloned Ian Coleman's BIP39 in-browser BIP39 HD key management app: https://github.com/gapcoin-project/bip39 and added the appropriate extended key configuration to enable the app to work with/generate Gapcoin extended keys.

Basic instructions: clone the respository (git clone https://github.com/gapcoin-project/bip39.git and, in the browser, open src/index.html, click the "Generate" button, choose "Gapcoin", "Gapcoin Testnet" or "Gapcoin Regtest" from the drop-down menu and use the app from there on.





The idea is that you can familiarise yourself with new key/tx types, using the "Derivation Path"  tabs to explore the new extended key features:





- BIP44 refers to the accepted common standard to derive non segwit addresses. These addresses always begin with a G.

- BIP49 refers to the accepted common standard of deriving segwit "compatibility" addresses. These addresses begin with a 3.

- BIP84 refers to the accepted common standard of deriving native segwit addresses. These addresses always begin with gp1 - and are referred to bech32 addresses.

- BIP141 refers to segwit-enabled txs such as P2WPKH (see https://github.com/bitcoin/bips/blob/master/bip-0141.mediawiki for more details)

I was initially puzzled as to why, when I imported a privkey, three new addys appeared in the "Receiving addresses" list, eventually I understood why and to help other users make sense of the new wallet and its complexities, I added a new RPC-API call makekeypair (generate a fresh ECC keypair) which explicitly illustrates why one privkey -> three addys:



("Privkey" is the usual cryptocurrency sense, i.e what you'd import to the wallet but "public key" and "private key" are the cryptography keypairs generated by the underpinning elliptic curve code - you wouldn't use the private key at all but on occasion it's appropriate that the public key can be broadcast, e.g. to enable others to verify messages signed by you.)

Please note, the 0.16.3 reference client generates its own HD extended master key but doesn't give you a mnemonic code but you can use the RPC-API command dumpwallet to dump the wallet in a human-readable format which you can inspect for the line: # extended private masterkey: gpxv<rest-of-key> and which (after reloading the page and ensuring "Gapcoin" is selected) you can copy and paste the private masterkey into the "BIP32 Root Key" field and use the app thereafter (again, it doesn't generate a mnemonic after you've pasted the Root key, it seems to be the case that the mnemonic is used to generate an extended key and that a reverse mapping from key to mnemonic isn't available). This approach has the benefit that you are working with the extant wallet HD master key and all the generated keys will be actual children of the wallet master key.

Cheers

Graham
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November 11, 2020, 06:14:10 PM
Merited by cryptomaxsun (1)
 #2253

gjhiggins , Thanks, downloaded, launched. Everything is OK
That's good to know.

only in mining you cannot change the number of threads with the slider, but these are trifles.

I know the slider bar is ineffective in the 0.9.4 Windows64 binary that I made available just today but the images you provide show you're using the 0.16.3 reference client and (now that I've configured my Windows VM with more than one core), I can't reproduce that issue, the slider bar seems to work as expected, I used it to dial the number of threads down to 2 from 4:





You can tell more about the function Notary ?
The Notary tab only appears in the experimental 0.9.4 reference client. In the 0.16.3 reference client, that functionality has been integrated into the Sendcoins entry GUI object (so that it is available each time the "Add Recipient" button is clicked) and is a little less opaque



The field can be used either to carry a SHA256sum hash of a file stored locally to the client or a user-pasted TrustyURI.

For hashing a file: clicking the "Notarize File" button brings up a system File Navigation dialog box which you can use to select which file you wish to notarize (inscribe the hash of the file on the blockchain by including the hash as OP_RETURN data in a transaction). Selecting a file causes a SHA256sum hash to be computed and loaded into the "inscription" field.

For inscribing a TrustyURI: simply paste the TrustyURI into the inscription field.

In both cases, continue to complete the transaction as normal.

The content of an inscription can be inspected by using the in-wallet block explorer - navigate to the transaction that contains the inscription and view the outputs.

I have just inscribed the hash of the 0.9.4 Windows setup.exe file I made available earlier - (55555d7a6fd87809d06b54bba1c18c975fe5076a402face71d3539c62e591311). The hash in inscribed on block 12315, in transaction id bfebdba304c893f2cd4f06c5b2f0214b0062841445430375a28780ba3484a365.



With respect to TrustyURIs, they address the issue evident in the above example: the hash 55555d7a6fd87809d06b54bba1c18c975fe5076a402face71d3539c62e591311 carries no information about the resource that was hashed. By design, TrustyURIs contain a URI that locates an RDF graph and includes a hash of that graph that can be separately validated. I'll explain in more detail another time but for now, here's a couple of references for interest: http://arxiv.org/abs/1401.5775 and https://github.com/trustyuri/trustyuri-spec

And more about the testnet, I downloaded it and launched it, everything is fine, mining is good, I found a lot of blocks. How long will the testnet run?
My view is that a sound altcoin should have a permanent testnet running to support the self-education of cryptocurrency users in matters such as understanding the ins and outs of segwit, multisig, pay to script hash transactions and the like. The Peercoin community even fund a chainz block explorer for Peercoin testnet as well as mainnet.

And what is required from ordinary users? How can they help? I keep my testnet wallet running all the time, but stopped mining.
That's quite okay, if you've tried it out and it works for you and that's all you want to do, no problem. I have a Hetzner-hosted server that dedicates one thread to keeping the testnet chain moving. Feel free to drop in/out whenever you've a need to use the testnet.

Cheers

Graham

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November 14, 2020, 01:48:24 AM
 #2254

Valid point. I guess from my standpoint....I have several older GPU's that i would love to throw hashing at gapcoin...

They are faster than my old cpus...hence my thoughts on a GPU miner..

My gpus get right at 1 million pps each if i dont try to run multiple instances...where my cpus get 200-550 pps..

Granted if I had newer hardware I might revisit my theories...



Awesome steps forward

Any idea on someone who could help with the GPU miner?
Unfortunately, the task is unlikely to hold intrinsic interest for anyone with the necessary skill set and I doubt the remaining community has the resources to fund a jobbing programmer.

In my implementation of the upgrade of the Gapcoin reference client from 0.9 to 0.16, I've had the inestimable benefit of receiving technical advice and guidance from James (aka barrystyle). He has observed that the GapMiner code which interfaces with the node's RPC-API commands is quite antiquated and ideally should be swapped out for a modern version. Indeed, I had to re-implement the code providing the RPC-API getwork call used by the Gapcoin miner, functionality which had been removed from the Bitcoin codebase back in v0.10 (https://github.com/bitcoin/bitcoin/blob/047a89831760ff124740fe9f58411d57ee087078/doc/release-notes.md#0100-change-log). These days getblocktemplate is where it's at.

Also the degree of GPU/CPU advantage is rather unclear. ATM, my server reports 28 active nodes, the hashrate is around 32MHps and 2 threads on my i7 CPU laptop yield around 300KHps. I can only invite you to do your own arithmetic guesswork as to what proportion of the network hashrate derives from GPU processing and what kind of hashpersec advantage GPU brings over CPU. Unless someone would care to provide actual data?

Cheers

Graham

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November 17, 2020, 12:14:25 PM
 #2255

...snip...

Edit.

SouthXchange has a voting system for adding new coins here ...
- https://main.southxchange.com/Home/Vote#new-coins

However, the add coin listing requires a google form with a login ...
If someone from the community would like to add Gapcoin for voting ... ?
- hxxps://docs.google.com/forms/d/11IStGmLIVVFWQrqEwkRbHcGK0PlYFIdssvxcPChzf_s/


I filled out the form and now we are on the list.
I had some coins and voted.

Thanks @cryptomaxsun !

FWIW I will highlight the voting for SouthXchange with a link on gapcoin.club  Smiley

...

It should be noted that CoinGecko only tracks FreiExchange;

- https://www.coingecko.com/en/coins/gapcoin#markets

Whilst CoinPaprika tracks both FreiExchange and FreeBitcoins Exchange;

- https://coinpaprika.com/coin/gap-gapcoin/#!exchanges

Thus, we have experienced some disparity in price action on the widgets for sometime now.

A submission to track new trades at C-Patex was made last week to both CoinGecko and CoinPaprika, although they are a little slow to act on this request - I assume things will pick up when the market has some volume (hopefully!).

CoinMarketCap refusing to re-link Gapcoin's listing until we have a daily exchange volume of over $1000 is also not helping our price action.

We will get there.  Wink

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November 18, 2020, 08:20:11 AM
 #2256

i am sorry for my young padawan  Grin
you have some snapshot as download available ?

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November 18, 2020, 10:44:36 AM
Last edit: November 18, 2020, 11:19:10 AM by gjhiggins
Merited by xandry (2)
 #2257

i am sorry for my young padawan  Grin
you have some snapshot as download available ?

Not as a matter of course atm, tends to be on request. Here's the latest, as of a couple of minutes ago: https://minkiz.co/noodlings/gap/gapchain-snapshot.zip.

Cheers

Graham.

Edit: Well, I don't know how I managed to get the zip file up to 4.2Gb but after reading BitcoinFX’ post below, I remilled it and apparently fixed whatever I'd done - the zip file is down to a more tolerable 642Mb.
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November 18, 2020, 10:49:46 AM
Last edit: November 18, 2020, 12:20:45 PM by BitcoinFX
Merited by xandry (2)
 #2258

i am sorry for my young padawan  Grin
you have some snapshot as download available ?

No worries!

Data directory snapshot method ...

- https://minkiz.co/noodlings/gap/gapchain-snapshot.zip (642MB)
Source: https://bitcointalk.org/index.php?topic=822498.msg55436839#msg55436839

or

Zipped blocks, chainstate and gapcoin.conf ... (592MB) - Blockheight 1323650 today 18th November 2020 ...
- https://gapcoin.network/downloads/Gapcoin_blockchain.zip

...

Unnamed . Exchange - https://unnamed.exchange - here we come !?

...

- https://youtu.be/gjm-kCOMaPY

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November 18, 2020, 11:46:38 AM
 #2259

i am sorry for my young padawan  Grin
you have some snapshot as download available ?
No worries!

funny story,
i was digging for the snapshot and some ip`s ,  when i see  your quick conversation ^^
but to be honest, i cant remind  that there was an listing request.
but thats not much worth.  i even cant remember what i eat yesterday.


Unnamed . Exchange - https://unnamed.exchange - here we come !?

cross your fingers and toes.
iam actual syncing  novacoin,aurora,mintcoin,orbit,uno,sia,vcash,deeponion,crown, and yeah gapcoin ^^


edit. ty
edit² lol  minkiz  long ago that i visit that page

https://youtu.be/v9vm9mwagyk

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November 18, 2020, 12:25:16 PM
Last edit: November 18, 2020, 12:37:54 PM by BitcoinFX
 #2260

...snip...

but thats not much worth. i even cant remember what i eat yesterday.


Unnamed . Exchange - https://unnamed.exchange - here we come !?

cross your fingers and toes.
iam actual syncing  novacoin,aurora,mintcoin,orbit,uno,sia,vcash,deeponion,crown, and yeah gapcoin ^^



"Pi·z·z·a Pi, tell them it was Pi·z·z·a Pi!"

- https://gapcoin.club

Smiley

- https://youtu.be/tNjoo9TuCHY?t=551

Cheesy

"Bitcoin OG" Bored/Board of making others wealthy! | 1JXFXUBGs2ZtEDAQMdZ3tkCKo38nT2XSEp | Bitcoin is BTC | CSW is NOT Satoshi Nakamoto | I Mine BTC, LTC, ZEC, XMR and GAP | Support my BTC on Tor addnodes Project | Media enquiries : Wu Ming | Enjoy The Money Machine | "You cannot compete with Open Source" and "Cryptography != Banana"
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