Hello ''honglu69'',
I'm very sorry that your very good site is closing,
I have some nengcoin in my account,
Which virtual currency address should I send you, to send me the equivalent,
If nengcoin address,
Which exchangers trade Nengcoin currency?
Sorry for shorelinecrypto exchange business, we do not provide support for coins. Please check out Nengcoin project for support on those questions you raised. The bottom line, if you do not provide SLC support Nengcoin address as required in refund process, we can not refund you anything. Another point was clear in our support email to you, we can only pay you back on your NENG balance on "NENG", no other coins are available on this process for you. |
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On the WCHTA price manipulation issue, I had comments in discord and in reddit: honglu69
Man, today's Cheetahcoin price on CHTA or on WCHTA is like a rocket! No price manipulation, yesterday was just a big buyer initial test move.
honglu69
I think Cheetahcoin trading price hit all time high. on USD or on doge price or on BTC price. It was never as high as today in the past.
Nobody lost money, because no matter when did you buy CHTA, it was lower price than today. |
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Checkpoint Patch v1.9.1 Released - Community AnnouncementFrom discord announcement channel: RedRaider10 | [🥉] — Today at 8:32 PM
@NENGsters
Hello Fellow Nengsters!!
The v1.9.1 version NENG core software release works great as it fixed bugs in prior release. However NENG blockchain is currently in limbo as there are two chains competing with each other with no clear winner on v1.9.1 version. Two chains limbo issue forbid NENG to be listed at SouthXchange listing for trading and cause confusion in NENG community.
After many meetings and talks between NENG leaders, we have decided to go with the checkpoint method. The checkpoint method is where one chain is picked on code and is chosen to be the true chain in the blockchain and making the other chain obsolete. Checkpoint method has been tested and verified as the best course of action to alleviate this issue once and for all. The release will still be the same version (v1.9.1), the only difference is that it will have the readme_checkpoint.txt file. It is highly recommended for all members to re-download the v1.9.1 checkpoint version to get rid of the chain syncing issue. Moving forward we will also contact SouthXChange to resume NENG trading once they have re-downloaded the v1.9.1 checkpoint version.
As always Happy Mining!
#NENGcandoit!
#NENGtothemoon
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. To read full text for this closure and refund announcement, please read: https://bitcointalk.org/index.php?topic=5121953.msg58435338#msg58435338or discord announcement board: https://discordapp.com/invite/jZMyhKm
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. To read full text for this closure and refund announcement, please read: https://bitcointalk.org/index.php?topic=5121953.msg58435338#msg58435338or discord announcement board: https://discordapp.com/invite/jZMyhKm
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. To read full text for this closure and refund announcement, please read: https://bitcointalk.org/index.php?topic=5121953.msg58435338#msg58435338or discord announcement board: https://discordapp.com/invite/jZMyhKm
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. To read full text for this closure and refund announcement, please read: https://bitcointalk.org/index.php?topic=5121953.msg58435338#msg58435338or discord announcement board: https://discordapp.com/invite/jZMyhKm
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. To read full text for this closure and refund announcement, please read: https://bitcointalk.org/index.php?topic=5121953.msg58435338#msg58435338or discord announcement board: https://discordapp.com/invite/jZMyhKm
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Note on Microsoft Email and 020 Withdraw
Microsoft hotmail/outlook etc block shorelinecrypto ip address. Change to another email that works on your profile page as email confirmation is required to withdraw self service coins.
Some members reported difficulty on withdrawing 020LondonCoin (O2O). There is O2O per withdraw limit due to blockchain limit there. Try to withdraw no more than 20 million 020 per withdraw and you can do multiple withdraws to get all O2O balance out by yourself.
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Shorelinecrypto Exchange Shutdown Notice with Refund Details11/14/2021 As we announced earlier on. the hacking event caused severe loss on exchange while users username or password were not hacked or leaked on that event. We now announce that ShorelineCrypto Exchange will completely shut down on Feb 26, 2022. For those ShorelineCrypto Exchange members to obtain refund from your existing shorelinecrypto balance, please make sure that you do following steps before our shut down date or your remaining balance will be forfeited and will not be refunded past that shutdown date. We have now re-started shorelinecrypto.com web page and all coins have disabled trading, but some coins have withdraw function enabled. You can login with your usual username/password to perform below steps to obtain refund. Step 1 - Cancel Orders for All CoinsAfter you login into shorelinecrypto exchange account, you should go to all the coins, and cancel your existing orders, cancel all the buy or sell orders completely so that your coins on hold for the buy/sell orders will be returned to your balance. Check Your balances on all coins and make sure they are all correct. Step 2 - Withdraw for Self Serving CoinsBelow list of coins have withdraw function enabled. You should go ahead and perform withdraw as usual, confirm with your email and withdraw the coins to your own private wallets from exchange. FckBankscoin (FCK) StackBIT (SBIT) 020LondonCoin (O2O) Noodlyappendagecoin (NDL) Curecoin (CURE) MetalMusicCoinV3 (MTLMC) Step 2 - Support Ticket for Refund on non-withdrawable CoinsBelow list of coins have withdraw function disabled: Bitcoin (BTC) Litecoin (LTC) Dogecoin (DOGE) Dash (DASH) Nengcoin (NENG) Cheetahcoin (CHTA) Please submit a ticket support asking for refund with below info, make sure you use the same email address as in the exchange account because we can only refund to the same email address holders for security reasons. Support ticket URL: https://shorelinecrypto.com/supportPlease provide below info in subject and body of message (1) Subject: Request for Refund (2) Exchange Username (3) Make sure the Email is same email on the exchange account (4) list of Coin names and coin balances of each coin that you want refund, please provide a private coin address for us to pay you back Due to hundreds of members at ShorelineCrypto, our ticket support response could be slow, please be patient with us for the liquidation process.
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ShorelineCrypto Exchange Hacked on 11/11/2021
11/12/2021
Dear ShorelineCrypto Friends and Members, we are sad to announce here that shorelinecrypto exchange platform was hacked on 11/11/2021. Through past one day investigation, we have determined that the yesterday's hacking event caused exchange to lose between $1000 USD to $2000 USD, most likely around $1500 USD as of today's DOGE/BTC/LTC trading price. The hacking was mainly on Dogecoin wallet, between 4000 to 5000 DOGE was stolen, to less degree for insignificant amount on exchange litecoin and bitcoin wallets. Here are details of the hack
(1) No exchange username or password were leaked or hacked on this event. A hacker registered a new username with email and hacked through the system software code with this account on a software bug that was unknown on this platform.
(2) The hacking event was through a complicated simultaneous dogecoin deposit and withdraw many many times. Deposit less coins and withdraw more coins, therefore stole large amount of DOGE. Because vast majority of exchange dogecoin is stored offline in cold wallet, the most amount of dogecoin stolen was determined around 5000 DOGE.
This is first time that this exchange software code was hacked over our past 3 years of operation. This is significant and we have determined that shorelinecrypto exchange business is no longer viable business while we will continue our software business with no impact. Here are the decisions we have made on this hacking event.
(1) The hacking loss on dogecoin/bitcoin/litecoin wallets yesterday around $1500 USD will be taken by our owner and operator Blastinvest, LLC. Users of exchange will not take losses on this event.
(2) The shorelinecrypto exchange business will go through a closure and liquidation process while shorelinecrypto software business will operate as usual.
(3) We will shortly announce a procedure for all shorelinecrypto exchange users to obtain your refund on your remaining balances. Because the exchange software is unsafe and the web site will not return online soon, we mainly communicate through bitcointalk ann page and discord announcement. Please stay tuned.
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really.................. so... you screw with the difficulty to you can try to make a CPU mineable scrypt coin..... THEN... the chain doesn't form a chain because the difficulty of the blocks being solved is too low and causing it to throw an error...........................you have no idea what you are doing.. all you had to do was change the amount it will vary during a diff reorg. ... and change the frequency it will reorg the diff from every n blocks to every block...... OR stop screwing with it to try and gain an advantage
bug is bug. but you are criticizing the coin design high level. Nengcoin original design was 80:20 split between ASIC miners and CPU miners, ASIC miners (including USB ASIC) get 80% of all block reward, CPU miners (PC + android) get 20%. v1.9.x with new security upgrade will change the split, but intention of dev team is always to insure that majority of block reward goes to ASIC miners (including scrypt USB ASIC in this group). NENG has more than 3 years of history, CPU mining for nearly 3 years, mobile mining on Android for more than 1 year. So this is not what you think. The coin is working fine. Sure bug causing syncing issue was serious issue, but the patch fixed this. |
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ShorelineCrypto exchange trading on Nengcoin (NENG) has resumed after several days of suspension. NENG wallet withdraw also resumed.
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How to Sync Node Fast with bootstrap filebootstrap file is particularly helpful to sync fast over past 3 years NENG blocks. Here is one copy of bootstrap from dev: https://drive.google.com/file/d/1t9o4KiAIpnCccascB8Lij4HHR0pZmdLR/view?usp=sharingFor desktop Windows10/MacOS/Linux/Chromebook, you can simply place this file under data folder, keep "wallet.dat", "nengcoin.conf" files only and delete all other files and then sync blocks from disk directly. This would work very well for android phone as phone syncing NENG node is very slow due to weak Android arm CPUs on single thread. Perform this in Android Userland app linux command line: pip install gdown
cd
echo export PATH=${HOME}/.local/bin:$PATH >> .bashrc
. .bashrc
gdown https://drive.google.com/uc?id=1t9o4KiAIpnCccascB8Lij4HHR0pZmdLR
mv bootstrap.dat ~/.nengcoin/
You can now start NENG wallet in Userland App ubuntu or debian command line and sync NENG full node within a few hours.
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Root Cause Analysis on Full Node Syncing Trouble on v1.9.x Hard Fork11/6/2021 Hong Lu, Dev of Nengcoin Since our v1.9.x hard fork on Oct 31 2021, Nengcoin blockchain has been struggling for full nodes syncing. It seems to have formed many little chains without forming a real major chain. We initially thought this was due to "bad node", but we think we found the issue. It is not a "bad node" issue, the latest software release has bug, we call it "Minimum Work Bug". Too Little Proof-of-Work ErrorThe debug.log file typically has this error recently when it rejects the obvious longest chain (like the on on block explorer): ERROR: ProcessBlock() : block with too little proof-of-work Although Nengcoin core has difficulty adjustment changes with new introduction of "cheetah diff" for CPU/Mobile miners, and "Spike diff" for preventing 51% attacks, the basic concept of bitcoin longest chain rule never changed, the Nengcoin core largely cloned after Litecoin core v0.8.x branch, which itself cloned from bitcoin core v0.8.x. This error itself is strange enough. If there is bad node, well whoever agree with NENG core algo and have the bitcoin longest chain on math should win and other chains on bad node should just be orphaned. In other word, in concept of bitcoin/litecoin blockchain world, chain should not get stuck by this. Code on this errorHere is code from NENG source code that will print out this error: https://github.com/ShorelineCrypto/nengcoin/blob/MinWorkBug/src/main.cpp#L2618This error was result of condition of this function "ComputeMinWork", by going through this function and many real cases that block get stuck, we think we found root cause of this issue. Indeed, we believe the v1.9.0.0 code has software bug that caused this recent chaos on Nengcoin blockchain. Trouble 1 - Failed on Difficulty Range on Cheetah BlocksOn the function "ComputeMinWork", it has an assumption that block difficulty should just be no more 4x increase or decrease because that is how it works on bitcoin or litecoin. Each difficulty adjustment may cause difficulty drop, but no more than 1/4 of previous difficulty period. Nengcoin is different, we know it can have CPU cheetah block that has difficulty that is significantly below this 4x range up or down. We know that NENG difficulty can have a sharp reset, the difficulty drop a lot. We have this fix on this issue: https://github.com/ShorelineCrypto/nengcoin/commit/c4332786c5263474aea3b102955b084328e1404cTrouble 2 - Checkpoint block selection that can fail Min Work Check
Another common trouble that we observed has nothing to do with cheetah difficulty on cheetah blocks. We went through this code on "ComputeMinWork" and realized that it checks difficulty from the last checkpoint block and enforce a rule that minimum work is no less than 1/4 adjustment for each period. In bitcoin and litecoin, that is correct math because difficulty can only be adjusted up 4x or downward to no less than 1/4. But this is not true understanding of Nengcoin blockchain. We know NENG sometimes can do a reset, and the difficulty can drop to very low levels from high levels, thus breaking this no more 4x, no less 1/4 rule. We have a fix on this issue, in that we should not set a checkpoint on high difficulty block, we should just pick a block on cheetah difficulty to avoid this pitfalls: https://github.com/ShorelineCrypto/nengcoin/commit/d68d0e543249040774f45c448af0a43e728dffbbThe above fix should work because block height 3244063 has only difficulty of 0.0391. The Nengcoin code can continue enforcing no more than 1/4 drop on each period, but the chain is not likely to drop that below cheetah diff, therefore the fix should just work. Checkpoint in bitcoin world is no longer favored because checkpoint essentially is a control by software side, by dev. Nengcoin is like bitcoin/litecoin/dogecoin and we believe that dev should not have that much control on this issue. In that sense, we are not likely to use checkpoint in software release frequently, and we only use checkpoint when a major hard fork is released. The Nengcoin full node syncing will rely mainly on bitcoin longest chain rule to decide who is the winner, who is loser on blockchain mining competition. Because of philosophically not favoring checkpoint technology on this blockchain, picking a cheetah diff as infrequent security measure is a quite reasonably good fix on this issue.
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New information on this v1.9.x wallet full node syncing issuewe are looking to perform a software patch on this, because this may be a software bug related issue causing the syncing problem. Nengcoin diffculty adjustment modified GetNextWork function to have extra cheetah diff (for CPU/Android miner) and spike diff on top of bitcoin style difficulty adjustment, other code was unchanged, this could be reason for the issue not able to syncing nodes into chain. Details: Usually, bitcoin longest chain rule will slip and orphan one chain and merge into main chain quickly. However, something is wrong obviously on NENG now. Here is my wallet vs explorer chain, both were synced this morning, now it is forked into two chain. Debug.log file on this with conf enforcing 2 nodes only connected: 2021-11-05 01:03:36 connected 185.182.8.67
2021-11-05 01:03:36 send version message: version 70002, blocks=3245543, us=0.0.0.0:0, them=185.182.8.67:6377, peer=185.182.8.67:6377
2021-11-05 01:03:36 receive version message: /Satoshi:1.9.0/: version 70002, blocks=3245633, us=71.234.69.93:60108, them=185.182.8.67:6377, peer=185.182.8.67:6377
2021-11-05 01:03:36 UPnP Port Mapping successful.
2021-11-05 01:05:34 received block 13853f1ca7f585fa8a30fbc863cc04dea3903b943e839c39839775621ef4a8b8
2021-11-05 01:05:34 ERROR: ProcessBlock() : block with too little proof-of-work
2021-11-05 01:05:34 Misbehaving: 185.182.8.67:6377 (0 -> 100) DISCONNECTING
2021-11-05 01:05:34 disconnecting node 185.182.8.67
2021-11-05 01:05:35 trying connection 192.168.86.98:6377 lastseen=426687.3hrs
2021-11-05 01:05:35 connect() failed after select(): Connection refused
2021-11-05 01:05:37 trying connection 185.182.8.67 lastseen=0.0hrs
2021-11-05 01:05:37 connected 185.182.8.67
2021-11-05 01:05:37 send version message: version 70002, blocks=3245543, us=0.0.0.0:0, them=185.182.8.67:6377, peer=185.182.8.67:6377 Essentially, two chains there connected by conf file connect=185.182.8.67 Explorer 185.182.8.67 has 3245633 blocks, this desktop node has 3245543. Most likely by bitcoin longest chain rule, explorer has bigger work, should be good, the other chain should be orphaned. But it did not. The log file saying "ERROR: ProcessBlock() : block with too little proof-of-work" the node is saying the block explorer has too little work, misbehaving, ban this IP. Usually nodes get banned. In this case in conf file connect=explorerIP , banned and then reconnect, then banned again. This may be a software issue or some of bug that needs to be fixed. Not sure how to resolve this now. In the coming weekend, I need to dig through code, to see what his error "ProcessBlock() : block with too little proof-of-work", for now it is just muddle through. For now, not ideal solution, just make the explorer node as "official" blockchain for SLC trading purpose, not good, not great solution. But we have to muddle through this until it is fixed on code. It may be a software issue.
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