[ANN][MAX] MAXcoin - PoW, ASIC Resistance, Keccak GPU Mining

[NikLan]

New wallet - https://github.com/Max-Coin/maxcoin/releases/tag/v0.8.9.1 WINDOWS 8 SUPPORT!

Downloaded new wallet, added nodes to config, restarted, waited for 1 hour, but no effect  - 0 connections.
P.S. Win 8 64bit

delete maxcoin.conf
save new there C:\Users\<username>\AppData\Roaming\MaxCoin\maxcoin.conf
or remove into C:\Users\<username>\AppData\Roaming\MaxCoin\

That worked! Thanks a lot!
P.S. But I really can't imagine, that all the other people figure it out by themselves... Very unfriendly install procedure, definitely bad for coin reputation.

[subSTRATA]

Hey guys

I made a withdrawal from my wallet to an exchange, but lost internet connection on my laptop sometime during the process or shortly thereafter. I've noticed that I have 0 confirmations within the wallet, and it's been over a half hour now.

Any idea on what I can do? I've restarted the wallet multiple times. Is there some sort of command that can reset the transaction?

Thanks for the help....

I have had the same issue when I shut down my wallet just after sending a transaction - before it could be announced.

You can fix it by doing the following;

1: Make sure your Wallet is closed.
2: Open a folder, and type %appdata% into the address bar and hit enter.
3: go into the MaxCoin folder, then into the blocks folder
4: delete all the .dat files in there
5: Restart the wallet app
6: It will state that the database is corrupt, and ask if you want to fix it - say yes.
7: It will then re-synch your wallet from the beginning, and the transaction will occur
8: send the fixer a tip - address below  <--- this is the most important part of the process XD

Just use -rescan when starting Maxcoin wallet, there is no need to redownload complete blockchain. If blockchain somehow becomes corrupted
wallet will notice and either fix it or complain about it (as you stated at step 6). Missing, not confirming or any other problematic transactions
have to do with wallet data not being "in sync" with downloaded blockchain so wallet must be fixed, not blockchain. If blockchain itself becomes
corrupted and wallet does not seem to be able to auto-fix it just use -reindex instead of -rescan

1. Go to folder where you installed Maxcoin wallet
2. Right-click on maxcoin-qt and select "Create shortcut"
3. Right-click on maxcoin-qt - Shortcut and select "Properties"
4. In field "Target" add -rescan ("C:\Program Files\Maxcoin\maxcoin-qt.exe" -rescan) and click OK to close window and save changes
5. Use maxcoin-qt - Shortcut to start Maxcoin wallet
6. Once wallet is up and running you can remove -rescan from shortcut (else every subsequent start will last longer due to rescanning wallet).

New wallet - https://github.com/Max-Coin/maxcoin/releases/tag/v0.8.9.1 WINDOWS 8 SUPPORT!

Downloaded new wallet, added nodes to config, restarted, waited for 1 hour, but no effect  - 0 connections.
P.S. Win 8 64bit

Win7 64-bit here, same problem. I think the cause for this situation is most people stopped running their local wallets once solo mining became
hard and moved to pools, sending MAX to exchanges. Totally bad idea, guys. I know many of you are new to crytocoins but important lession you
definitely need to learn is that cryptocoin networks are users with local wallets running. Cryptocoins are supposed to be decentralized! If only few
pools and exchanges are running local wallets we can not really speak about network being secure, all it takes to stall it is to kill those few wallets.
The purpose of local wallet is not just to have your coins localy, wallet main purpose is to be building piece of cryptocoin network. That means to
check any and all transactions and blocks and relay data to other wallets. If you let validation of transactions in hands of few people, especially
big mining pools, we all might start experiencing major problems with MAX. So, unless you are mining and immidiately dumping MAX for BTC you
better have local MAX wallet running at all times.

Using pool or exchange to store your MAX is by far the most stupid idea ever, just like storing your fiat or precious metals in banks.

New wallet - https://github.com/Max-Coin/maxcoin/releases/tag/v0.8.9.1 WINDOWS 8 SUPPORT!

Downloaded new wallet, added nodes to config, restarted, waited for 1 hour, but no effect  - 0 connections.
P.S. Win 8 64bit

delete maxcoin.conf
save new there C:\Users\<username>\AppData\Roaming\MaxCoin\maxcoin.conf
or remove into C:\Users\<username>\AppData\Roaming\MaxCoin\

That worked! Thanks a lot!
P.S. But I really can't imagine, that all the other people figure it out by themselves... Very unfriendly install procedure, definitely bad for coin reputation.

Install procedure, troubleshoting and setting up Maxcoin wallet is identical to Bitcoin and all altcoins based on Bitcoin. It is not friendly toward
average or bellow average computer users but it is still complicated nowhere close to messing with advanced Win features, software or Linux.

Anyway, I'm not mining MAX nor I plan to do so (no hardware) but I'm interested in what hashrate one can expect from certain hardware. Let's
say ATi 5770 GPU, what hashrate is obtainable when mining MAX? I know there are mining calcs out there but for them to be useful to me I need
to know hashrates first ... thanks in advance!

[websmith]

ati 6970 170MH/s

[subSTRATA]

ati 6970 170MH/s

What is your hashrate when mining Bitcoin using the same GPU?

[websmith]

ati 6970 170MH/s

What is your hashrate when mining Bitcoin using the same GPU?

keccak hash rate = 0.5 x SHA-256 hash rate

[subSTRATA]

ati 6970 170MH/s

What is your hashrate when mining Bitcoin using the same GPU?

keccak hash rate = 0.5 x SHA-256 hash rate

Thanks!

After 30 minutes of waiting with dozens of nodes added to maxcoin.conf my node is connected to just 2 nodes ...

18:16:33

getpeerinfo


18:16:37

[
{
"addr" : "5.199.162.32:8668",
"services" : "00000001",
"lastsend" : 1393175699,
"lastrecv" : 1393175782,
"bytessent" : 1065346,
"bytesrecv" : 274424919,
"conntime" : 1393173168,
"version" : 70001,
"subver" : "/Max:0.8.9/",
"inbound" : false,
"startingheight" : 48475,
"banscore" : 0,
"syncnode" : true
},
{
"addr" : "94.23.18.51:8668",
"services" : "00000001",
"lastsend" : 1393175520,
"lastrecv" : 1393175794,
"bytessent" : 19914,
"bytesrecv" : 694876,
"conntime" : 1393173681,
"version" : 70001,
"subver" : "/Max:0.8.9/",
"inbound" : false,
"startingheight" : 48208,
"banscore" : 0
}
]

... and no one is dumping MAX big time on exchanges? So, you are holding onto MAX but don't give a damn about network? It might backfire on
all of us, get serious and start running your local wallets at all times or sell all your MAX immidiately. No, that is not a joke. Joke is you expecting
to become millioners one day but failing to properly protect your investments. I have over 15 local wallets running (all cryptocoins I have invested
into) and MAX one is noticably the worst of all. All other wallets go 8+ connections few minutes after start.

[websmith]

You are welcome!

[onliner]

ati 6970 170MH/s

What is your hashrate when mining Bitcoin using the same GPU?

keccak hash rate = 0.5 x SHA-256 hash rate

Brilliant!  very interesting result.

[Zyklon87]

ati 6970 170MH/s

What is your hashrate when mining Bitcoin using the same GPU?

keccak hash rate = 0.5 x SHA-256 hash rate

Thanks!

After 30 minutes of waiting with dozens of nodes added to maxcoin.conf my node is connected to just 2 nodes ...

18:16:33

getpeerinfo


18:16:37

[
{
"addr" : "5.199.162.32:8668",
"services" : "00000001",
"lastsend" : 1393175699,
"lastrecv" : 1393175782,
"bytessent" : 1065346,
"bytesrecv" : 274424919,
"conntime" : 1393173168,
"version" : 70001,
"subver" : "/Max:0.8.9/",
"inbound" : false,
"startingheight" : 48475,
"banscore" : 0,
"syncnode" : true
},
{
"addr" : "94.23.18.51:8668",
"services" : "00000001",
"lastsend" : 1393175520,
"lastrecv" : 1393175794,
"bytessent" : 19914,
"bytesrecv" : 694876,
"conntime" : 1393173681,
"version" : 70001,
"subver" : "/Max:0.8.9/",
"inbound" : false,
"startingheight" : 48208,
"banscore" : 0
}
]

... and no one is dumping MAX big time on exchanges? So, you are holding onto MAX but don't give a damn about network? It might backfire on
all of us, get serious and start running your local wallets at all times or sell all your MAX immidiately. No, that is not a joke. Joke is you expecting
to become millioners one day but failing to properly protect your investments. I have over 15 local wallets running (all cryptocoins I have invested
into) and MAX one is noticably the worst of all. All other wallets go 8+ connections few minutes after start.

This is my node list http://pastebin.com/fxLKrjyh
And currenctly I have 15 active connections !

[ocminer]

https://max.suprnova.cc

No fees, finds blocks on regular basis and pays out immediately.

Mine MAX now:

https://max.suprnova.cc

[subSTRATA]

• I will use a randomizer from 1 to 10,000 (if the number of tickets sold are less than 10,000, say 8564, the randomizer will be set to draw from 1 to 8564 and so on).

Scam!

The way to do it properly is to use data you can not manipulate (easily) like part of the hash for some future Maxcoin block. But I guess you will
not go with such approach, it would massively reduce your chance to win this lottery.

[fradifra]

hi guys
which is the best GPU for mining MAX  at the moment?

[subSTRATA]

• I will use a randomizer from 1 to 10,000 (if the number of tickets sold are less than 10,000, say 8564, the randomizer will be set to draw from 1 to 8564 and so on).

Scam!

The way to do it properly is to use data you can not manipulate (easily) like part of the hash for some future Maxcoin block. But I guess you will
not go with such approach, it would massively reduce your chance to win this lottery.

Some love the lottery and some don't. It's hard to please everybody, but calling it a scam is a bit over the top. I guess most things is a scam in your eyes. Some people were calling Bitcoin a scam when it first came out and look at it now.  

Warning, confirmed scam!

[subSTRATA]

Warning, "the lottery" guy will use "randomizer" that makes him or his friends winners, you others have no chance to win anything!

[subSTRATA]

This whole pathetic scam for some reason reminded me of a guy who put on ignore everyone on this forum usualy calling-out scams, including
some admins like Tomatocage, just to end up scammed few days later for nice amount of BTC. Yes, some people around here are that stupid!

[ScroogeD]

Here we go Maxcoin scammers.

[ejhuff]

As of 2014-02-24 01:00 UTC, 59 MAX have been deposited into the lottery payment address.

Sr. Member subSTRATA has questioned whether or not this is a trustworthy lottery.  (Well, actually he called it a "SCAM", presumably based on the fact that the sponsor is unnecessarily asking us to trust him to conduct the random drawing.  He pointed out that the hash of a future MAXcoin block is a good way to conduct a random drawing.)

Lottery sponsor and Jr. Member zaloultra ignored the suggestion for using the hash of a future block, and replied with "calling it a scam is a bit over the top."

subSTRATA judged, based on the fact that zaloultra ignored the suggestion, that zaloultra is not interested in making the lottery more transparent.  He concludes that this makes it a "confirmed scam."

zaloultra again ignores the substance of the complaint and accuses subSTRATA of "posting lies and untruthful bullshit...."

Subsequent posting degenerate further.

I am sorry but I must agree with subSTRATA, unless zaloultra agrees to the following method of choosing winners, possibly with justified modifications.  This does not change the terms of the lottery, since previously, the method was up to zaloultra, and the drawing date in case the lottery sold out early was ambiguous (the conjunction was "or," not "unless").

In particular, if zaloultra will enlarge upon the specifications as follows, I will agree that this lottery is not a scam.  If he insists on using his own method of choosing the winning ticket numbers, this will confirm subSTRATA's judgment, and this lottery will definitely be a "confirmed scam," and I will endeavor to have his trust set negative so his postings are flagged in red with "trade with caution."


• The winning lottery ticket numbers will be calculated using the total number N of tickets sold, and the hash code H of the first confirmed MAXcoin blockchain block with timestamp > 1394899200 (2014-03-15 16:00:00 UTC).  Such a block was scheduled (assuming one block every 30 seconds) to occur in the vicinity of blockchain height 106520, but of course, blocks are not found at exact 30 second intervals.  106520 is (1394913600-1391717999)/30.  1391717999 is the timestamp of MAXcoin block 1.

• The lottery will close for payments after timestamp 1394841600 (2014-03-15 00:00:00 UTC), with refunds for late payments before timestamp 1394870400 (2014-03-15 00:00:00 UTC).  (That is to say, payments received in MAXcoin blockchain blocks with 1394841600 < timestamp < 1394870400 will be refunded.  Subsequent payments are forfeit).

• The first prize ticket number is calculated by taking the remainder after dividing the hash code H by the number of tickets N.

• The second prize ticket number comes from the remainder after dividing the quotient from the first prize division, H ÷ N, by the number of tickets N.

• The third prize ticket number comes from the remainder after dividing the quotient from the second prize division, (H ÷ N) ÷ N, by the number of tickets N.

• In the unlikely event that two or all three prizes are won by the same ticket, the lucky winner is the lucky winner!

• All payments received after the balance at the lottery payment address exceeds 10,000 MAX will be refunded, so long as the payment arrives in a MAXcoin blockchain block with timestamp < 1394870400.

• Ticket numbers will be assigned starting with zero, in the order that deposit transactions were received, as shown on the MAXcoin blockchain, transcribed for example, at cryptoexplore.com.  Thus:

Code:

TKT# Sending address
0000 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0001 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0002 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0003 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0004 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0005 mJ7sEL2hswp5EaXbv4a6FLcmoPA7TSUtDK
0006 mMRTZtXwSQSfFrnpgfyoqc1bXE7xpGsku6
0007 mQEHKNh91js5t5Y9EfXqGXCscdzSjx6Q4g
0008 mQEHKNh91js5t5Y9EfXqGXCscdzSjx6Q4g
0009 mQEHKNh91js5t5Y9EfXqGXCscdzSjx6Q4g
0010 mV3aX3QEgRmh1vZywKu9h1RhMW63cxVADQ
 and mRoEyeproB6hX2DY8Bfng8rfnaXk2ppVLm
0011 mV3aX3QEgRmh1vZywKu9h1RhMW63cxVADQ
 and mRoEyeproB6hX2DY8Bfng8rfnaXk2ppVLm
... etc. ...

• In cases where multiple sending addresses were used, such as tickets 0010 and 0011, the owner must specify a payout address.

• Payment to winning tickets will be sent back to the sending address, or to a payment address specified on the lottery thread.

Payment to an address different from the sending address is offered because some online wallets cannot credit payments to their sending address to the correct account holder.  In the case of forged postings, messages signed with the sending private key take precedence.  (Arbitrary messages can be signed using the standard MAXcoin client). If the private key is not available because only the online wallet knows it, ask for help from senior members of the community, or ask customer service at your wallet company to prepare a signed message.  Payout to a disputed payment address will be delayed until the dispute is resolved.

Code:

Note that blockchain timestamps are represented in Unix/Linux internal date format, i.e., seconds since 1970-01-01 UTC.
maxchain.info displays them in this format.  max.cryptoexplore.com seems to display them as date and local time in 
timezone UTC-0600.

$ date --date="2014-03-15 UTC" +%s
1394841600
$ date --date="2014-03-15 08:00:00 UTC" +%s
1394870400
$ date --date="2014-03-15 16:00:00 UTC" +%s
1394899200

Just to be complete, we specify with great precision what the % operator means for operands greater or equal to zero.
These calculations are done using infinite precision positive integer arithmetic.
% denotes the remainder after integer division, 1 % 2 = 1.
x % y is always less than y.
÷ denotes integer division, 1 ÷ 2 = 0.
y * (x ÷ y) + (x % y) is always equal to x.
(x % y) is therefore always equal to x - y * (x ÷ y).

1st prize goes to ticket number (H % N).
2nd prize goes to ticket number ((H ÷ N) % N).
3rd prize goes to ticket number (((H ÷ N) ÷ N) % N).

[BTCspoon]

mcxnow users, consider this:

http://www.reddit.com/r/Bitcoin/comments/1rhcgn/i_lost_most_of_my_bitcoins_today_heres_why/
http://cryptolife.net/scam-alert-mincoin/
https://bitcointalk.org/index.php?topic=454390.0

[ejhuff]

I fear that way is open to abuse and leave it out of my hands for some smart hackers to manipulate one way or another. How about we all get Max Keiser to draw the lottery on his show, THAT would be awesome  

There are quite a few bitcoin gambling sites, starting with Satoshi Dice, that use this method.  The hashcode of any specific future block is definitely random.  There is definitely no way for a hacker to control it, and everyone can agree on what the hashcode is after the block is confirmed.

However, on reflection, I think it would be simpler to use specific block numbers.  Then I can give a link to the block explorer page with the hash code, as follows:

• The winning lottery ticket numbers will be calculated using the total number N of tickets sold, and the confirmed hash code H of MAXcoin hashchain block number 106520, obtained after block number 106620 has been found (100 confirmations).

That is, once the the cryptoexplore search for block 106620 returns a block rather than

Search Results For "106620"

No Result Found

then H will be the hash value given at cryptoexplore's page for block 106520.  This value may also be found using the MAXcoind or MAXcoin-qt client, or using webcoin (dead link) or maxchain.info.

For example, no one can dispute these facts with a straight face, and everyone can easily check them (click the link):
• The hash of block 50000 is 00000000000059b7b1670117eeb04f472036c073f275cd50decce15d3894c8f5 in hex.
• The decimal value of that hash is 144170545449846795252878978589069370515757698399706647721462005.
You can calculate and check that decimal value using this arbitrary precision hex to decimal to hex converter.

If N is 10000, you can compute the winning ticket numbers in your head given the decimal value of the hash.
First prize would go to ticket 2005, second prize to ticket 2146, and third prize to ticket 6477.  Note:  the 12 least significant digits are 647721462005.

The decimal value of the hash, and the winning ticket numbers for more difficult values of N, are easily calculated using the bc command line tool which comes standard on most every Linux:

Code:

$ echo 'ibase=16; 00000000000059B7B1670117EEB04F472036C073F275CD50DECCE15D3894C8F5;' | bc
144170545449846795252878978589069370515757698399706647721462005
$ echo 'ibase=16;
>          h=00000000000059B7B1670117EEB04F472036C073F275CD50DECCE15D3894C8F5;
>          ibase=0A;
>          n=10000;
>          print "first prize: ", h%n, "\nSecond prize: ", (h/n)%n, "\nThird prize: ", ((h/n)/n)%n, "\n"' | bc
first prize: 2005
Second prize: 2146
Third prize: 6477
$ echo 'ibase=16;
>          h=00000000000059B7B1670117EEB04F472036C073F275CD50DECCE15D3894C8F5;
>          ibase=0A;
>          n=9999;
>          print "first prize: ", h%n, "\nSecond prize: ", (h/n)%n, "\nThird prize: ", ((h/n)/n)%n, "\n"' | bc
first prize: 9555
Second prize: 4693
Third prize: 2067
$ echo 'ibase=16;
>          h=00000000000059B7B1670117EEB04F472036C073F275CD50DECCE15D3894C8F5;
>          ibase=0A;
>          n=1000;
>          print "first prize: ", h%n, "\nSecond prize: ", (h/n)%n, "\nThird prize: ", ((h/n)/n)%n, "\n"' | bc
first prize: 5
Second prize: 462
Third prize: 721
$ echo 'ibase=16;
>          h=00000000000059B7B1670117EEB04F472036C073F275CD50DECCE15D3894C8F5;
>          ibase=0A;
>          n=997;
>          print "first prize: ", h%n, "\nSecond prize: ", (h/n)%n, "\nThird prize: ", ((h/n)/n)%n, "\n"' | bc
first prize: 72
Second prize: 550
Third prize: 848

Another place where the lottery operator is asking for unnecessary trust:  The assignment of ticket numbers must occur in an automatic and indisputable manner, with no discretion on the part of the lottery operator.  The best way to ensure this would have been to state ahead of time that any deposit transaction which is not for an integral number of MAXcoin would be returned.  This can be fixed:

• Starting March 1, all transactions must deliver an integral number of MAXcoin, or they will be returned.
• The ticket numbers for earlier transactions will be published on March 2, and any disputes will be resolved before the drawing.
• Subsequent ticket numbers will be assigned in the order the transactions are listed on the block explorer websites.  (Experts should be consulted to be certain that this is the same as the order transactions occur in the actual block).
• The lottery will close early enough so that the list of ticket numbers can be published before the drawing.

Regarding payout addresses:
• Starting March 1, the payout address will be the first sending address in the transaction.
• Users of online wallets should send a small amount to the lottery address, and verify that they receive the refund to their online account.  If they don't, they would be well advised to switch to a different wallet, or better, to run the standard wallet software on their PC.
• If some vandal tries to DOS the lottery by sending lots of small amounts, the promise to return them is void.  Users should check the lottery address before sending their test amount to be sure this is not happening.

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