[ANN] [BUK] CryptoBuck Official Notes BUK2.1.1 -->New ChainStart 2017-02-01

[vampirus]

BUK have another big problem. One PoS block can discard any numbers of PoW blocks. I just lost 74 mined PoW blocks.
In new client need change function GetBlockTrust() to something like this:

Code:

uint256 CBlockIndex::GetBlockTrust() const
{
    CBigNum bnTarget;
    bnTarget.SetCompact(nBits);

    if (bnTarget <= 0)
        return 0;

    /* Old protocol */
    if (!fTestNet && GetBlockTime() < CHAINCHECKS_SWITCH_TIME)
        return (IsProofOfStake()? ((CBigNum(1)<<256) / (bnTarget+1)).getuint256() : 1);

    /* New protocol */

    // Calculate work amount for block
    uint256 nPoWTrust = (CBigNum(nPoWBase) / (bnTarget+1)).getuint256();

    // Set nPowTrust to 1 if we are checking PoS block or PoW difficulty is too low
    nPoWTrust = (IsProofOfStake() || nPoWTrust < 1) ? 1 : nPoWTrust;

    // Return nPoWTrust for the first 12 blocks
    if (pprev == NULL || pprev->nHeight < 12)
        return nPoWTrust;

    const CBlockIndex* currentIndex = pprev;

    if(IsProofOfStake())
    {
        CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);

        // Return 1/3 of score if parent block is not the PoW block
        if (!pprev->IsProofOfWork())
            return (bnNewTrust / 3).getuint256();

        int nPoWCount = 0;

        // Check last 12 blocks type
        while (pprev->nHeight - currentIndex->nHeight < 12)
        {
            if (currentIndex->IsProofOfWork())
                nPoWCount++;
            currentIndex = currentIndex->pprev;
        }

        // Return 1/3 of score if less than 3 PoW blocks found
        if (nPoWCount < 3)
            return (bnNewTrust / 3).getuint256();

        return bnNewTrust.getuint256();
    }
    else
    {
        CBigNum bnLastBlockTrust = CBigNum(pprev->nChainTrust - pprev->pprev->nChainTrust);

        // Return nPoWTrust + 2/3 of previous block score if two parent blocks are not PoS blocks
        if (!(pprev->IsProofOfStake() && pprev->pprev->IsProofOfStake()))
            return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();

        int nPoSCount = 0;

        // Check last 12 blocks type
        while (pprev->nHeight - currentIndex->nHeight < 12)
        {
            if (currentIndex->IsProofOfStake())
                nPoSCount++;
            currentIndex = currentIndex->pprev;
        }

        // Return nPoWTrust + 2/3 of previous block score if less than 7 PoS blocks found
        if (nPoSCount < 7)
            return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();

        bnTarget.SetCompact(pprev->nBits);

        if (bnTarget <= 0)
            return 0;

        CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);

        // Return nPoWTrust + full trust score for previous block nBits
        return nPoWTrust + bnNewTrust.getuint256();
    }
} 

[1714941828]

1714941828

[1714941828]

1714941828

[1714941828]

1714941828

[synthgauge]

BUK have another big problem. One PoS block can discard any numbers of PoW blocks. I just lost 74 mined PoW blocks.
In new client need change function GetBlockTrust() to something like this:

Code:

uint256 CBlockIndex::GetBlockTrust() const
{
    CBigNum bnTarget;
    bnTarget.SetCompact(nBits);

    if (bnTarget <= 0)
        return 0;

    /* Old protocol */
    if (!fTestNet && GetBlockTime() < CHAINCHECKS_SWITCH_TIME)
        return (IsProofOfStake()? ((CBigNum(1)<<256) / (bnTarget+1)).getuint256() : 1);

    /* New protocol */

    // Calculate work amount for block
    uint256 nPoWTrust = (CBigNum(nPoWBase) / (bnTarget+1)).getuint256();

    // Set nPowTrust to 1 if we are checking PoS block or PoW difficulty is too low
    nPoWTrust = (IsProofOfStake() || nPoWTrust < 1) ? 1 : nPoWTrust;

    // Return nPoWTrust for the first 12 blocks
    if (pprev == NULL || pprev->nHeight < 12)
        return nPoWTrust;

    const CBlockIndex* currentIndex = pprev;

    if(IsProofOfStake())
    {
        CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);

        // Return 1/3 of score if parent block is not the PoW block
        if (!pprev->IsProofOfWork())
            return (bnNewTrust / 3).getuint256();

        int nPoWCount = 0;

        // Check last 12 blocks type
        while (pprev->nHeight - currentIndex->nHeight < 12)
        {
            if (currentIndex->IsProofOfWork())
                nPoWCount++;
            currentIndex = currentIndex->pprev;
        }

        // Return 1/3 of score if less than 3 PoW blocks found
        if (nPoWCount < 3)
            return (bnNewTrust / 3).getuint256();

        return bnNewTrust.getuint256();
    }
    else
    {
        CBigNum bnLastBlockTrust = CBigNum(pprev->nChainTrust - pprev->pprev->nChainTrust);

        // Return nPoWTrust + 2/3 of previous block score if two parent blocks are not PoS blocks
        if (!(pprev->IsProofOfStake() && pprev->pprev->IsProofOfStake()))
            return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();

        int nPoSCount = 0;

        // Check last 12 blocks type
        while (pprev->nHeight - currentIndex->nHeight < 12)
        {
            if (currentIndex->IsProofOfStake())
                nPoSCount++;
            currentIndex = currentIndex->pprev;
        }

        // Return nPoWTrust + 2/3 of previous block score if less than 7 PoS blocks found
        if (nPoSCount < 7)
            return nPoWTrust + (2 * bnLastBlockTrust / 3).getuint256();

        bnTarget.SetCompact(pprev->nBits);

        if (bnTarget <= 0)
            return 0;

        CBigNum bnNewTrust = (CBigNum(1)<<256) / (bnTarget+1);

        // Return nPoWTrust + full trust score for previous block nBits
        return nPoWTrust + bnNewTrust.getuint256();
    }
} 

U nailed it. POS is a mythic shit, I prey for the times when there werent POS coins, just plain bitcoin and litecoin awesomeness. Do it via a pull request and get merged, and demand a bounty for ur brilliant effort.

[CryptoBuck]

Vampirus, synthgauge

Found the described issue,  block 301287 - per POS client on 301287

{
"hash" : "91f46a17463075e3fc40c3104542be217a4311b266a64a5e99b3dc12013ba14c",
"confirmations" : 1,
"size" : 457,
"height" : 301287,
"version" : 4,
"merkleroot" : "bf166f0c621129c7149eac6ec45dddc090329e2f7d3b2f55548b31f613859edb",
"mint" : 0.01930200,
"time" : 1481742634,
"nonce" : 0,
"bits" : "1e009a3b",
"difficulty" : 0.00648370,
"previousblockhash" : "3da1fe066af5852e8d1f09582484e5995d997e5d8defeae4037fe2c46a20597d",
"flags" : "proof-of-stake",
"proofhash" : "0000130d6641de3aec3977341324a72197980259642989d229cc33d3a3ffa0a2",
"entropybit" : 0,
"modifier" : "d76387ce75e522fc",
"modifierchecksum" : "abfa172f",
"tx" : [
"537f30a1293bb32be17996e1c4ab369fc0c3a18b8cac2dbd92a6c719f3afdbbe",
"26972b46c79dbdbfd2a8efe7b9a76c185e4e6d53840ece06a5f5eb6d9307aed0"
],
"signature" : "304402202bea00330cefc14303ce633653bde2bd960288a46750d8c9ff93b7b3f803009a02202a4 73ba8e57ed17f2fa7497d52dbd36e2148066869810b14b689130a39011189"
}

BLOCK 301287 POW client Block 301287

{
"hash" : "0000000007ebfb78cb706261e72b5920c6ba0b32175345d58bf952c6f64f43e7",
"confirmations" : 0,
"size" : 335,
"height" : 301287,
"version" : 4,
"merkleroot" : "9f6cc9fc69feee7fa3f20e0e1b27e11c076309c2e2e5eab9cf44180af0af03a2",
"mint" : 0.00000000,
"time" : 1481662944,
"nonce" : 3145593309,
"bits" : "1c20d6d5",
"difficulty" : 7.79544539,
"previousblockhash" : "00000000091857a466d6a5f94df1aa2fc411ce2607a123166310a6adbce8449e",
"flags" : "proof-of-work",
"proofhash" : "0000000007ebfb78cb706261e72b5920c6ba0b32175345d58bf952c6f64f43e7",
"entropybit" : 1,
"modifier" : "ab81e5e08b3469e7",
"modifierchecksum" : "e3983c5c",
"tx" : [
"9f6cc9fc69feee7fa3f20e0e1b27e11c076309c2e2e5eab9cf44180af0af03a2"
],
"signature" : "30450220734499b075724a3b9c333a43008a3b9859ce3ded53215d5d212305b7a0283e05022100d 2cca6c49b85fa3020a7c34759cf12cb39233f8cf4f4014451e71355a0d7bf0a"
}

Since Large Staking Wallet went offline, we are seeing the long awaited POW blocks being generated, since BUK has a  small Buy Demand on NovaExchange, their MultiPool has unlocked the high 27 diff. - Once the POS wallet goes back online I do see the Fault as described.
We will be reaching out to you on a side note to reimburse for Lost BUK, and also award a bounty.  Great Find.

CryptoBuck 

[vampirus]

Big update soon.
I am new official BUK developer.
Soon BUK restart with new chain, and coin swap 1:1.
New wallet forked from latest NovaCoin.
Algo - Scrypt, PoS+PoW with OrbitCoin block style (50 PoS blocks and 50% PoW)
PoS reward 10BUK, no specific years reward, min 3 max 15 days weight stake.
I generate all coins for swap in block 1, then send to old addresses from
rich list: http://buk.cryptocoinexplorer.com/rich
I send only to address with balance more 100 BUK
If you want swap without problem, take all from exchange, and combine coins less 100 to one address,
and better keep coins in unlocked wallet.

[CryptoBuck]

Hello All,

The CryptoBuck Team would like to congratulate Member "Vampirus" for taking on the roll as Lead Developer
for the upcoming Major release and future releases to follow.  He has much experience with the PoS architecture
and has provided many fixes and feedback over the years.  Thank you for this Vampirus.

In addition to the detailed specs sent by Vampirus, I would like to mention that if you are a holder of less than 100 BUK's
and would like them ported over into the new version, please send this low balance to the CryptoBuck Fountain Address

3E2cUTWJ8fz9rqtgAMV8QkcUUH593gg4EP  

and send a message to CryptoBuck@gmail.com with this transaction ID  

Once we have the New Version in Place and running,  we will be able to convert your BUK's.


*Please note,  we have not finalized on a Date/Block # that the cutover will happen, but please send
the <100 BUK's prior to the cutover.  
More information to follow as we finalize the coding progress.  

We will ALWAYS stand by and honor the statement.
We are Trusted, We are Honest, and We are Valued...  
Looking forward to a successful 2017.    

CryptoBuck -
as of 2017-01-11 - Current Height = 312814    Current Supply = 2781048.05946

[almightyruler]

Quick suggestion - please exclude cryptobuckd from being uploaded to git. The majority of the 18MB source archive is this executable...

https://github.com/CryptoBuck/CryptoBuck/blob/master/src/cryptobuckd

It's still there. This is meant to be the source code tree, please remove the platform specific executable...

Why does this keep getting ignored?  

vampirus, perhaps you can delete this non source code file. No one else seems to be interested in responding to the above. It's been nearly 10 months since I pointed out (3 times) the problem.

[vampirus]

Quick suggestion - please exclude cryptobuckd from being uploaded to git. The majority of the 18MB source archive is this executable...

https://github.com/CryptoBuck/CryptoBuck/blob/master/src/cryptobuckd

It's still there. This is meant to be the source code tree, please remove the platform specific executable...

Why does this keep getting ignored?  

vampirus, perhaps you can delete this non source code file. No one else seems to be interested in responding to the above. It's been nearly 10 months since I pointed out (3 times) the problem.

Done. But new version will be in new directory: https://github.com/scificrypto/CryptoBuck2

[vampirus]

Additional BUK2 info:
PoW reward:
Blocks 2-499 - 1 BUK
Blocks 500 - 399999 11 BUK
Blocks 400000 - 799999 5.5 BUK
Blocks > 800000 2.75 BUK

PoS reward:
10 BUK
5 BUK after 01 Jan 2020

Target time between PoW block: 5 min
Target time between PoS block: 5 min
Summary time between block: 2.5 min

[almightyruler]

Done. But new version will be in new directory: https://github.com/scificrypto/CryptoBuck2

Thanks. I was so focussed on being ignored for the past 10 months that I didn't realise you were switching to a new codebase and restarting the blockchain.  

I enabled staking to use up some coin age before I consolidate my unspent outputs to a single address, but according to my client, I have minted all of the last 70+ blocks? This doesn't seem right. No one else has staked in the past 12 hours?

edit: restarted the client and everyone is at the same height I am. Guess things are just quiet for some reason.

[almightyruler]

Which exchanges currently feature BUK? The 3 in the OP are all dead.

I know of these:

- novaexchange.com
- crypto-trade.net
- ..... any others?

Perhaps the OP could be updated?

[vampirus]

BUK2 almost done. https://github.com/scificrypto/CryptoBuck2
You can download, compile and test Stratum server.
If you have problem with Stratum server try change halfnode.py:

Code:

class CBlock(object):
       def __init__(self):
           self.nVersion = 6

I upload compiled win32 version tomorrow.

This is test version, only for testing!

In final version I add premine, checkpoints and send coins to old BUK addresses.
Final cutover date for old blockchain 25 Jan 2017

[almightyruler]

Final cutover date for old blockchain 25 Jan 2017

To transfer the coins, are you using the richlist at http://buk.cryptocoinexplorer.com/rich , or the blockchain?

A couple of days ago I consolidated all my unspent outputs into a single address, and I've since noticed there are some odd discrepancies showing on the block explorer.

1. This transaction shows an output of 1799.633301 on the explorer, but according to my client it is 1799.633353 (a difference of 0.000052)

http://buk.cryptocoinexplorer.com/transaction?transaction=4e2f440d56590c8e44726aae372cced4ad0ea3f093bccd95049d8253821ac520

   "vout" : [
        {
            "value" : 1799.63335300,
            "n" : 0,
            "scriptPubKey" : {
                "asm" : "OP_DUP OP_HASH160 9f3ee0ae8b7db3f95a7acb7ec47e350913e0c3c7 OP_EQUALVERIFY OP_CHECKSIG",
                "hex" : "76a9149f3ee0ae8b7db3f95a7acb7ec47e350913e0c3c788ac",
                "reqSigs" : 1,
                "type" : "pubkeyhash",
                "addresses" : [
                    "3GD2grv71tvjjv13z7piDVm9UgC8RUPpg4"
                ]
            }
        }
    ],
...
    "fee" : -0.14000000,
    "confirmations" : 789,
...
    "txid" : "4e2f440d56590c8e44726aae372cced4ad0ea3f093bccd95049d8253821ac520",



2. The rich list doesn't show address 3GD2grv71tvjjv13z7piDVm9UgC8RUPpg4, even though it has 1799.633301 / 1799.633353 BUK (take your pick as to which amount is correct)

(edit: the rich list does show the address, but for some reason my browser doesn't see it with a Ctrl-F search. However, there's another different amount, 1799.633423? This was a brand new address used solely for consolidation. How can the block explorer show two different balances, and neither are what my client shows?)

[vampirus]

To transfer the coins, I will use the richlist. If you have any difference, just say and I send more BUKs.
If you want search richlist, save webpage as .mht and then open in text editor.

[rockmoney]

Which exchanges currently feature BUK? The 3 in the OP are all dead.

I know of these:

- novaexchange.com
- crypto-trade.net
- ..... any others?

Perhaps the OP could be updated?

Are the 3 exchanges currently listed in the OP all of the places people can purchase BUK? Cryptsy is currently listed in the OP as an active exchange for BUKS, so I have a feeling we never got an updated list (although it looks like we could use one). Also, what is the deadline (if any) for the rich list initial distribution method?

[almightyruler]

To transfer the coins, I will use the richlist. If you have any difference, just say and I send more BUKs.
If you want search richlist, save webpage as .mht and then open in text editor.

I suspect the discrepancies may be cumulative rounding errors, so transactions with lots of inputs may have the wrong total. But then why do two pages show two different amounts?

I would expect the amounts shown on a block explorer should be exact, not just 'close'...  

[vampirus]

Win32 BUK compiled TEST version http://www.scificrypto.info/files/cryptobuck-test-w32.zip

Final cutover date for old blockchain 25 Jan 2017

I send BUK only to first 100 addresses from richlist, then create control point and upload final wallet and blockchain to github.

To all other addresses I will send later, when have free time.

[vampirus]

About converting old coins to new.

You do not need hurry with converting, just start mining to new wallet.
You can convert with two method:
First: recommended:
Open old wallet with old cryptobuck-qt.exe
Open console (debug window) and type: listaddressgroupings
then for addresses with more then 10 BUK, type in console: dumpprivkey address
copy and save private keys in txt file.
Start new cryptobuck-qt.exe with fresh wallet, in console type: importprivkey savedprivatkey label
for all private keys.

Second, not recommended, because problem with export such wallet to text file.
create txt file convert.bat with text: cryptobuck-qt.exe -salvagewallet
copy old BUK wallet to new directory cryptobuck2
execute convert.bat

After converting, split coins to 300-1000 BUK chunks for PoS minting.

I send first 100 old balances before start new chain and more 100 BUK later.
If someone want 10-100 balance, let me know here.

[CryptoBuck]

CRYPTOBUCK MANDITORY UPGRADE FROM BUK1.3.1 TO BUK2.1.0

Snapshot date for holders of 100 or more BUK = 1.25.2017 -  13:00 EST (18:00 UTC)
Prior to Snapshot - if you hold less than 100 BUK you can either send to our fountain address 3E2cUTWJ8fz9rqtgAMV8QkcUUH593gg4EP  
and send an email to CryptoBuck@gmail with transaction ID and we will send to your new BUK2 address.
or, you can combine addresses to make it >100 prior to snapshot.

If by chance you miss the snapshot date and hold less than 100, please email CryptoBuck@gmail.com - we will work with you.


The CryptoBuck2 chain start date of  2/1/2017 13:00 EST (18:00 UTC) - Github updated shortly before.
You can compile LIVE BUK2 code from either the official GitHub, or from the Lead Dev GitHub, Mirrored code.
https://github.com/CryptoBuck/CryptoBuck
https://github.com/scificrypto/CryptoBuck2 (Currently has the TEST Chain)

CryptoBuck is currently being Traded on 2 Exchanges:
https://novaexchange.com/market/BTC_BUK/  (currently disabled for the update)
https://crypto-trade.net/exchange?base=BUK&counter=BTC

These Exchanges have been contacted by the official email CryptoBuck@gmail.com in regards to snapshot and rollout dates.

Once the code base for BUK2 is up and running we will be reaching out to other 3rd party outlets.

Thank you for your continued support. And looking forward to the long awaited CryptoBuck Update

CryptoBuck - Keep on Hashing!!!

[CryptoBuck]

CryptoBuck 1.3.1 Balances SnapShot has taken place at exactly 100PM EST

BLOCK 317343 is officially the END OF LIFE Block for CryptoBuck Version 1.3.1



CryptoBuck2.1.0 will Officially Launch on 2017-02-01 13:00EST -
GitHub Source Uploaded shortly before.

Please join us in this official milestone, and get your hands on some newly minted BUK's. 
Scrypt - PoS and PoW Hybrid Chain.

Remember CryptoBuck has a production limit of 10 Million (10,000,000) - Extremely rare

Thanks again everyone.
Hashing Away Always,
CryptoBuck

[vampirus]

Final BUK changes: https://github.com/scificrypto/CryptoBuck2
Now you can compile daemon for pool and exchange.