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Topic: [NENG]Nengcoin - Litecoin on Steroids - Scrypt for All Miners - page 5. (Read 46675 times)

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Activity: 1573
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do not use "cheetah_cpuminer" exclusively for mining. I mine phone with "cheetah_cpuminer" because I do not want my phone overheat. But my main PC is mining directly in wallet with just "setgenerate true"  or "setgenerate true 4"  (using 4 CPU to mine).  The regular difficulty is lower than cheetah diff,  so ASIC is not catching up yet, a lot of coins can be mined directly, better than ASIC because of randomSpike restriction imposed.

CPU miners now have two ways of mining NENG,  regular difficulty or cheetah difficulty.   ASIC only have one way, regular difficulty.
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Activity: 1573
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How to CPU Mine NENG without pool
currently the blockchain is moving fine, however, pool nodes are still probably -reindex, not catching up with new hard fork yet.

Because currently there are no pools supporting NENG now. CPU mining is main mining method , in wallet "setgenerate true" will mine regular diff = 0.000244, the "cheetah_cpuminer" will mine cheetah diff = 0.00488 after 2 minutes wait.

For those who do not know, follow this old bitcoin youtube video for exactly the steps:
https://www.youtube.com/watch?v=Xd4Opw0Upok

For 8 core PC with 8 CPUs, recommend to use 7 CPUs for mining, leaving one CPU idle for wallet syncing and other stuff with below command:
Code:
setgenerate true 7

Update on 2/19/2022 ,

Now the regular diff is above cheetah diff, but CPU mining method still can be done if PC or Mac is powerful enough. Not recommended for phone due to overheating issue. For phone, stick with "cheetah_cpuminer" method.
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Activity: 1573
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Explorer is up, Block Current


explorer is up, the block are current on explorer:
http://nengexplorer.mooo.com:3001/

addnode=185.182.8.67
addnode=209.145.50.223
try to do  -reindex before the wallet start
The blocks going through over, needs to roll back.

for cli wallet of cli, here is command:
Code:
hlu@mx:~/nengcoin_2.1.0_x86_64_linux-gnu
$ ./nengcoind  -reindex
this same for QT wallet,  reindex in macOS,  linux or windows 10
Code:
./nengcoin-qt  -reindex
for  windows 10 or windows 11,  here is reindex command in the same command folder, or a bat file, say "nengcoin_start.bat"  file in windows 10:
Code:
nengcoin-qt.exe -reindex
member
Activity: 1573
Merit: 23
Emergency v2.1.0-randomSpike_1.10.x Released - Hard Fork on Height 3536501


This is emergency hard fork release on version v2.1.0 for all users and miners.  There was double spending attack on NENG wallet at SouthXchange on 2/12/2022 that stole 3.75 billion NENG.   This hard fork will orphan that double spending, and make those 3.75 billion NENG stolen coins orphaned because the hard fork happens right before the attack block height.

This is also a planned regular hard fork transferring the knowledge of security upgrade from recent Cheetahcoin v1.10.x hard fork release to address timestamp attack.  The timestamp risk on NENG have been similar and the bitcoin 2 hour rule is now changed to 2 minute rule on this release.  Other changes:

(1) cheetah difficulty dropped 8 times to improve small solo miners of CPU / USB ASIC user experience and reward level. Because we know now the timestamp attack was more of ASIC attackers, cheetah diff is no longer required to hold at high diff level.  This will improve reset reward for solo USB ASIC miners too.
(2) spike diff cut in half to 110k.

Wallet download sites:
 https://github.com/ShorelineCrypto/nengcoin/releases/tag/v2.1.0

You may have to do "-reindex" to fully sync this hard fork to roll back to hard fork block height.

Compensation for Honest Miners

Because this release hard fork happened 5 days before release date, some honest miners will lose coins on this hard fork.  Please contact RedRaider10 at discord for compensation arrangement from team.


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Activity: 1573
Merit: 23
SouthXchange 51% Attacked on 2/12/2022

Many of you already are aware, announced in twitter and in discord, SouthXchange was 51% attacked on Sat  Feb 12, 2022, about  3.75 billion NENG was double spent and stolen at SouthXchange.  Checkout discord channel for details of info there. Very detailed including all the hacking hash transactions.



RedRaider10 | [🥉] — 02/14/2022
@NENGsters

Important Announcement

There was a 51% double spend attack on SXC! Trading and buying is currently disabled!

Nengcoin Leaders are working on a solution ASAP!!

Don't lose hope Nengsters!! This attacker will not win!!

#NENGcandoit!
#NENGtothemoon
member
Activity: 1573
Merit: 23
I would say, based on the new error there and v2.0.0 is released,  I think the shorter chain is true chain. We are not going back to old version. It is too much going into new version now.

Soft Forks BIP66 and BIP65 are Enforced on the Chain on v2.0.0

The v2.0.0 was released 2 days ago.  The same code base pre-release  v0.13.3 was pre-released 22 days ago, that was long long time ago.

However, a timestamp attacker attacked the chain around the same day on the v2.0.0 release and v2.0.0 itself enforced BIP66 and BIP65 without BIP34 being enforced.  BIP34 is still planned at 3.9 million block height.   This is the reason for chain split because the wrong chain violated BIP66 and BIP65.  Previously we did not know that BIP66 and BIP65 can be enforced with 75% rule and 95% rule without BIP34 being activated first.

For now, we would urge for all those solo miners on USB ASIC/ASIC to move over to v2.0.0.  For those on v2.0.0 who have difficulty to sync to the same block height as block explorer, please do  "-reindex" to refresh the nodes into correct chain.

We are deciding to move over to new chain and not to look back into old versions on soft forks issue.
member
Activity: 1573
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I think the chain split, we got the reason, BIP66 soft fork is enforced on some of the bad header blocks

0000 log2_work=56.221875 tx=4488219 date='2022-02-04 09:20:30' progress=0.999822 cache=17.8MiB(136521tx)
2022-02-06 09:38:42 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:38:42 ERROR: invalid header received
2022-02-06 09:38:42 ProcessMessages(headers, 162003 bytes) FAILED peer=1
root@vmi695272:~/.nengcoin# tail debug.log
2022-02-06 09:38:21 UpdateTip: new best=10801473901b70171badffbec174ce2ee547e47e57adb4095ff303b17e60922a height=3516599 version=0x20000000 log2_work=56.221875 tx=4488216 date='2022-02-04 09:18:39' progress=0.999822 cache=17.8MiB(136518tx)
2022-02-06 09:38:21 UpdateTip: new best=aa339b13287da6944efd5ba85802ab6d3568ccc46589607ef7caeaa17de1728c height=3516600 version=0x20000000 log2_work=56.221875 tx=4488217 date='2022-02-04 09:19:34' progress=0.999822 cache=17.8MiB(136519tx)
2022-02-06 09:38:21 UpdateTip: new best=4c8c3915eedcd47b31ac9de18a7e805ddfc71e435a1346f1d445c24d2eb48796 height=3516601 version=0x20000000 log2_work=56.221875 tx=4488218 date='2022-02-04 09:19:36' progress=0.999822 cache=17.8MiB(136520tx)
2022-02-06 09:38:21 UpdateTip: new best=43eca76634b523db05f79ad7e9c6e92e1136c9d314c32573d789a4e45ccd0aed height=3516602 version=0x20000000 log2_work=56.221875 tx=4488219 date='2022-02-04 09:20:30' progress=0.999822 cache=17.8MiB(136521tx)
2022-02-06 09:38:42 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:38:42 ERROR: invalid header received
2022-02-06 09:38:42 ProcessMessages(headers, 162003 bytes) FAILED peer=1
2022-02-06 09:39:43 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:39:43 ERROR: invalid header received
2022-02-06 09:39:43 ProcessMessages(headers, 162003 bytes) FAILED peer=1
root@vmi695272:~/.nengcoin# tail debug.log
2022-02-06 09:38:21 UpdateTip: new best=10801473901b70171badffbec174ce2ee547e47e57adb4095ff303b17e60922a height=3516599 version=0x20000000 log2_work=56.221875 tx=4488216 date='2022-02-04 09:18:39' progress=0.999822 cache=17.8MiB(136518tx)
2022-02-06 09:38:21 UpdateTip: new best=aa339b13287da6944efd5ba85802ab6d3568ccc46589607ef7caeaa17de1728c height=3516600 version=0x20000000 log2_work=56.221875 tx=4488217 date='2022-02-04 09:19:34' progress=0.999822 cache=17.8MiB(136519tx)
2022-02-06 09:38:21 UpdateTip: new best=4c8c3915eedcd47b31ac9de18a7e805ddfc71e435a1346f1d445c24d2eb48796 height=3516601 version=0x20000000 log2_work=56.221875 tx=4488218 date='2022-02-04 09:19:36' progress=0.999822 cache=17.8MiB(136520tx)
2022-02-06 09:38:21 UpdateTip: new best=43eca76634b523db05f79ad7e9c6e92e1136c9d314c32573d789a4e45ccd0aed height=3516602 version=0x20000000 log2_work=56.221875 tx=4488219 date='2022-02-04 09:20:30' progress=0.999822 cache=17.8MiB(136521tx)
2022-02-06 09:38:42 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:38:42 ERROR: invalid header received
2022-02-06 09:38:42 ProcessMessages(headers, 162003 bytes) FAILED peer=1
2022-02-06 09:39:43 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:39:43 ERROR: invalid header received
2022-02-06 09:39:43 ProcessMessages(headers, 162003 bytes) FAILED peer=1
root@vmi695272:~/.nengcoin# tail debug.log
2022-02-06 09:38:21 UpdateTip: new best=10801473901b70171badffbec174ce2ee547e47e57adb4095ff303b17e60922a height=3516599 version=0x20000000 log2_work=56.221875 tx=4488216 date='2022-02-04 09:18:39' progress=0.999822 cache=17.8MiB(136518tx)
2022-02-06 09:38:21 UpdateTip: new best=aa339b13287da6944efd5ba85802ab6d3568ccc46589607ef7caeaa17de1728c height=3516600 version=0x20000000 log2_work=56.221875 tx=4488217 date='2022-02-04 09:19:34' progress=0.999822 cache=17.8MiB(136519tx)
2022-02-06 09:38:21 UpdateTip: new best=4c8c3915eedcd47b31ac9de18a7e805ddfc71e435a1346f1d445c24d2eb48796 height=3516601 version=0x20000000 log2_work=56.221875 tx=4488218 date='2022-02-04 09:19:36' progress=0.999822 cache=17.8MiB(136520tx)
2022-02-06 09:38:21 UpdateTip: new best=43eca76634b523db05f79ad7e9c6e92e1136c9d314c32573d789a4e45ccd0aed height=3516602 version=0x20000000 log2_work=56.221875 tx=4488219 date='2022-02-04 09:20:30' progress=0.999822 cache=17.8MiB(136521tx)
2022-02-06 09:38:42 ERROR: AcceptBlockHeader: Consensus::ContextualCheckBlockHeader: a0199a0eeca0a60bc0076d040ac6f7b552eab00c06716a0cb2246421efc03587, bad-version(0x00000002), rejected nVersion=0x00000002 block (code 17)
2022-02-06 09:38:42 ERROR: invalid header received
member
Activity: 1573
Merit: 23
One of my short chain got flipped to longer chain naturally, not by human surgery. The longer chain is true chain for now. It makes sense, it has higher diff,
longer chain,  no spike diff involved. Not sure what happened, the chain probably got split somewhere. 

member
Activity: 1573
Merit: 23
Why are there 2 chains (00: UTC  February 06, 2022) :
- PC wallet(v2.0) and http://cr2big.xyz are at block: 3 520 741
- https://spools.online and https://redpool.pl/ are at block : 3 520 034
So which chain is correct?

Not sure what caused this. But my two nodes,  one on old v1.9.x version wallet reindex from beginning to end, and also the official explorer site node
http://nengexplorer.mooo.com:3001/

all did refresh sync from before the split, then end result is same, the correct chain is now on explorer, same as redpool/spool pool.  In other word, the shorter
chain is the correct chain.  I did see lots of headers' error in log file.  So maybe the longer chain had lots of corrupted headers and block data in corrupted format.
it was going through by some nodes,  but I think the longer chain is wrong chain.  

To verify the truth. I am going to do a third node on v2.0.0, fresh start node, syncing from zero to now. I will see the results tomorrow.
newbie
Activity: 27
Merit: 0
Why are there 2 chains (00: UTC  February 06, 2022) :
- PC wallet(v2.0) and http://cr2big.xyz are at block: 3 520 741
- https://spools.online and https://redpool.pl/ are at block : 3 520 034
So which chain is correct?
hero member
Activity: 2147
Merit: 518
Be careful on trading WNENG
be careful on trading WNENG, Wrapped Nengcoin. Converting WNENG to NENG is usually fine at SXC, 1:1 pegged. However, buying WNNEG is tricky due to the supply shortage at SXC. The price at pancakeswap is decent, close to NENG/DOGE, but make sure check before hand, know what you are doing trading WNENG.

Pancake Swap has gouging price. I refuse to do any business with it. What is NENG? Whang-Chang jackie chan chinese toilet waste. Pop-chop tri-chop doodle-gloop coin that not even pond scum will buy. Care to change the name to a more decent? Does it exist on binance smart chain? As a market-maker guy, I lodge in my pants hefty piles of cash. I could create the future for u. But I wont.
member
Activity: 1573
Merit: 23
Nengcoin v2.0.0 Released - Windows, MacOS, Linux, Android phone, Chromebook, Pi4


Nengcoin core v2.0.0 is released.  This is major release and recommended for all nengcoin users except for solo miners on USB ASIC/ASIC.  Please download new wallet here: https://github.com/ShorelineCrypto/nengcoin/releases/tag/v2.0.0


This version is rebased off bitcoin/litecoin v0.13.3 with full in wallet CPU mining capabilities.  All CPU miners on PC/MacOS/Linux/Android phone/Chromebook/Pi are recommended to use this new wallet.  This wallet is static linked binary wallet so that macOS on x86_64 or M1 chip hardware on latest or older version of OSX all should work with full CPU mining capability when it is used with "cheetah_cpuminer"  miner.

For features and issues of this version, please checkout our prior report at:

https://github.com/ShorelineCrypto/nengcoin/releases/download/pre2.0/NENG_v2.0_Upgrade_Softfork_Proposal.pdf

member
Activity: 1573
Merit: 23
CPU mining domination continues close to 100%. average block is 6 minutes per block mined mainly on PC or android phone
member
Activity: 1573
Merit: 23
NENG base difficulty had a reset hours ago with fast blocks. Then minutes ago, another spike block was mined at difficulty = 244k at block height 3505827

CPU miners will continue to dominate close to 100% again on NENG mining for now until next difficulty adjustment block. It could be a day or 2.



member
Activity: 1573
Merit: 23
spike block mined, CPU mining 100% dominating
a spike block was mined at block height 3504888

From now on to next reset, CPU mining on PC or android phones are likely to dominate mining 100% on NENG
member
Activity: 1573
Merit: 23
tested on x86_64 version of macOS Monterey, latest macOS version, Nengcoin new wallet indeed works well. M1 chip same macOS version is likely to work too.
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Activity: 1573
Merit: 23
v2.0 macOS Wallet working in MacOS Big Sur
Just compiled v2.0 macOS wallet with static linked libraries. This means that the new verson macOS wallet should work in all macOS versions, from Catalina to Big Sur or Monterey. The binary wallet was compiled on x86_64 hardware, because macOS M1 chip on arm CPU also support x86 binary, this wallet should work on new macOS M1 chip too.

Screen shot of Nengcoin NENG wallet running in big sur, probably for the first time:
https://www.reddit.com/r/nengcoin/comments/sbeux5/v20_macos_wallet_working_in_macos_big_sur/

Here is pre-release for macOS wallet. The version tag and some URL link is wrong. But the official release on 2.0.0 will be same as this pre-release on codes:https://github.com/ShorelineCrypto/nengcoin/releases/tag/rebase0.13
member
Activity: 1573
Merit: 23
NENG v2.0 Features, Soft Forks, Atomic Swap

Hong Lu, Developer of Nengcoin & Cheetahcoin
1/23/2022


  • NENG v2.0 Release in Weeks
  • Significant Improvement on Syncing, Wallet User Experience
  • Faster Node Syncing, Ban on Bad Nodes
  • 50 million NENG Limit Removed, Better Handling on Stuck Transaction
  • Soft Forks Comparison with Bitcoin/Litecoin/Dogecoin
  • Censorship Resistance Decentralization with DEX Trading on Atomic Swaps
  • Issue for Solo Miners on USB ASICs/ASICs

Full Text:

https://github.com/ShorelineCrypto/nengcoin/releases/download/pre2.0/NENG_v2.0_Upgrade_Softfork_Proposal.pdf
member
Activity: 1573
Merit: 23
Recommended CPU Mining on NENG in PC/Phone - Dual Mining

The below discord channel recent conversation touched on NENG CPU/Mobile mining best practice and profitability

Quote
raeZur logic — 01/15/2022
@honglu69 - thank you - I've been CPU mining with the cheetah_cpuminer on neng - but noticing that it is not really mining all that much - not like CHTA - so wondering if I should just abandon the idea - if it's not really worth CPU mining. Is the ideal blocktime 1 min or what? I have my cpuminer interval set at 240s.. should I adjust it?
honglu69 — 01/15/2022
for CPU mining NENG, yes, the reward is much less.  The current recommended approach is "dual mining" both NENG + CHTA, so the main profit is CHTA, NENG is extra.  There are reasons for NENG profit to be much less. mainly the cheetah effect is much weaker on scrypt,  many cheetah blocks are mined not by CPU, but by ASIC miners on solo or pool mining mode.  100% dedicated CPU mining NENG on PC or phone may not be worth it for now.
the NENG side wait time is 2 minutes,  after two minutes, "cheetah_cpuminer" will kick in and start mining on CPU.  dual mining works because many times the CPU is idle.  It mines NENG while CHTA is idle,  or mines CHTA while NENG is idle on CPU.
interverval is same as CHTA,  say your phone has 8 CPU, here is recommended command in phone for NENG in another screen session:
    python  main.py --interval 10 --cpu 6
8 CPU,  leave 2 CPUs for NENG/CHTA wallet to sync and other system tasks,  use only 6 CPUs for CPU mining NENG.   same command for NENG or CHTA on different folder of  "cheetah_cpuminer".     My neng folder on phone is "cheetah_cpuminer",  my CHTA folder is "cheetah_cpuminer_chta" folder, both run in same phone, on different screen sessions
in rare cases, sometimes both CHTA and NENG are kick in mining together, when that happens, my phone uses 4 CPU mining NENG, 4 CPU mining CHTA, that is OK for short period.  Most of time, they do not mine together, therefore dual mining gets more profit on CPUs on phone or PC.
raeZur logic — 01/15/2022
Thank you for the explanation. 🙂
member
Activity: 1573
Merit: 23
SouthXchange added NENG/LTC Trading Pair

Upon request from NENG community through dev support ticket,   Southxchange has added litecoin trading pair today. Here it is:
https://main.southxchange.com/Market/Book/NENG/LTC


Happy Trading NENG!
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