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Economy / Exchanges / Is https://crexbtc.com, exchange legit

on: October 31, 2020, 08:32:49 AM

Hello all, I have completed a secured deal in https://crexbtc.com now when I try to withdraw they ask to verify the account by depositing 0.1 BTC in the account from an external address I want to know is this a legit website or not? Can anyone help

Alternate cryptocurrencies / Altcoin Discussion / Re: How to add premine in the bitcoin source

on: February 04, 2020, 04:08:59 AM

Quote from: nc50lc on February 04, 2020, 04:04:54 AM

Hmm no confirmations, maybe because of the current value of MAX_MONEY (master/src/amount.h) which is equal to the maximum "mineable" coins.
The premine output exceeded the MAX_MONEY which makes those coinbase transactions with 1Billion BTC output invalid.

Updated that too

Code:

static const CAmount MAX_MONEY = 10000000000 * COIN;

Block 4 details

Code:

{
    "hash": "e8f6528f802bc3ada6d258983b6a573a2fe3534231d01c56defaac7040c0e926",
    "confirmations": 1478,
    "strippedsize": 216,
    "size": 216,
    "weight": 864,
    "height": 4,
    "version": 536870912,
    "versionHex": "20000000",
    "merkleroot": "c888967eedfb202a3f7f075c0a5602006dde4e153c40dea8742afccbb2ab4a70",
    "tx": "See 'Transaction IDs'",
    "time": 1580260378,
    "mediantime": 1580259876,
    "nonce": 55920,
    "bits": "1e0ffff0",
    "difficulty": 0.000244140625,
    "chainwork": "0000000000000000000000000000000000000000000000000000000000500050",
    "previousblockhash": "409c8ef479727dd5e183855ae7820042bfe7133b06e57f8810f4b6898a4a2711",
    "nextblockhash": "c8d0f2f55e7aaf21e8637d420556bb932281151d6f39741d6c499310f8185261",
    "coinbaseTx": {
        "txid": "c888967eedfb202a3f7f075c0a5602006dde4e153c40dea8742afccbb2ab4a70",
        "hash": "c888967eedfb202a3f7f075c0a5602006dde4e153c40dea8742afccbb2ab4a70",
        "version": 2,
        "size": 135,
        "vsize": 135,
        "locktime": 0,
        "vin": [
            {
                "coinbase": "540107",
                "sequence": 4294967295
            }
        ],
        "vout": [
            {
                "value": "1000000000.00000000",
                "n": 0,
                "scriptPubKey": {
                    "asm": "OP_DUP OP_HASH160 72563c4d79d5f410805691e233e5d4083f33a8cf OP_EQUALVERIFY OP_CHECKSIG",
                    "hex": "76a91472563c4d79d5f410805691e233e5d4083f33a8cf88ac",
                    "reqSigs": 1,
                    "type": "pubkeyhash",
                    "addresses": [
                        "ASCRz7q4RzWNjyZfD4Rrg214Y3CU57pa9v"
                    ]
                }
            },
            {
                "value": 0,
                "n": 1,
                "scriptPubKey": {
                    "asm": "OP_RETURN aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf9",
                    "hex": "6a24aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf9",
                    "type": "nulldata"
                }
            }
        ],
        "hex": "02000000010000000000000000000000000000000000000000000000000000000000000000ffffffff03540107ffffffff0200008a5d784563011976a91472563c4d79d5f410805691e233e5d4083f33a8cf88ac0000000000000000266a24aa21a9ede2f61c3f71d1defd3fa999dfa36953755c690689799962b48bebd836974e8cf900000000",
        "blockhash": "e8f6528f802bc3ada6d258983b6a573a2fe3534231d01c56defaac7040c0e926",
        "confirmations": 1478,
        "time": 1580260378,
        "blocktime": 1580260378
    },
    "totalFees": "999999950",
    "miner": null
}

Alternate cryptocurrencies / Altcoin Discussion / Re: How to add premine in the bitcoin source

on: February 04, 2020, 03:39:01 AM

Quote from: nc50lc on February 04, 2020, 02:54:08 AM Quote from: vanshtah on February 04, 2020, 01:02:38 AM -snip- I start the mining I got the coins but I cannot spend it, do anyone has a solution to it It needs to have at least 100 confirmations to be spendable. In other words, you need to mine another 100 blocks. I have mined 1000 blocks but still cannot spend it. I enabled the advanced wallet input control feature from the QT wallet and tried selective input to do a transaction but it is unconfirmed. There are 100 new blocks mined and still going on

Alternate cryptocurrencies / Altcoin Discussion / How to add premine in the bitcoin source

on: February 04, 2020, 01:02:38 AM

Hello all, I am learning about bitcoin development, a created a new genesis, I compiled it and i got the windows, Linux and mac wallet running pretty well. Now I also want to add premine to the source code and with some searches in the google I found a solution to it.

In validation.cpp #L1041

Code:

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
    int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
    // Force block reward to zero when right shift is undefined.
    if (halvings >= 64)
        return 0;
    CAmount nSubsidy = 50 * COIN;
    if(nHeight == 4)  
    {
        nSubsidy = 1000000000 * COIN;
        return nSubsidy;
    }
    // Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
    nSubsidy >>= halvings;
    return nSubsidy;
}

I start the mining I got the coins but I cannot spend it, do anyone has a solution to it

Alternate cryptocurrencies / Altcoin Discussion / cannot spend the premine coins

on: February 03, 2020, 12:19:52 PM

I am trying to develop a new coin, i used the litecoin source code v.015 to develop a new coin and i added the premine coin in validation.cpp

Code:

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
    int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
    // Force block reward to zero when right shift is undefined.
    if (halvings >= 64)
        return 0;
    CAmount nSubsidy = 50 * COIN;
    if(nHeight == 4)  
    {
        nSubsidy = 1000000000 * COIN;
        return nSubsidy;
    }
    // Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
    nSubsidy >>= halvings;

Everything works perfectly except I cannot spend the premine, can someone help?

Alternate cryptocurrencies / Altcoin Discussion / Altcoin Transfer coin problem from QT wallet

on: February 02, 2020, 09:45:29 AM

I have forked litecoin 0.15 and developed a new cryptocurrency but I cannot transfer bigger amounts like 60000 Is there something wrong in the qt wallet setting or something wrong in source code? Thanks for the help in advance

Alternate cryptocurrencies / Altcoin Discussion / Re: New design for litecoin qt wallet

on: October 05, 2019, 11:43:57 PM

I need qt wallet to be redesigned

Alternate cryptocurrencies / Altcoin Discussion / New design for litecoin qt wallet

on: October 05, 2019, 08:25:43 PM

I have cloned litecoin v0.15, but the design of the wallet is not matching with my project i need a dark theme design for it, can anyone help me in updating the design or any project from where i can clone

Alternate cryptocurrencies / Altcoin Discussion / Re: Build .exe for my new altcoin

on: September 16, 2019, 11:40:54 AM

Quote from: vanshtah on September 16, 2019, 05:58:12 AM

okay i tried the steps now i am stuck here

Code:

Making all in src
make[1]: Entering directory '/usr/src/arciris/src'
make[2]: Entering directory '/usr/src/arciris/src'
make[3]: Entering directory '/usr/src/arciris'
make[3]: Leaving directory '/usr/src/arciris'
make[3]: Entering directory '/usr/src/arciris/src/secp256k1'
make[3]: Leaving directory '/usr/src/arciris/src/secp256k1'
  GEN      qt/res/bitcoin-qt-res.o
/usr/bin/x86_64-w64-mingw32-windres: ./qt/res/icons/bitcoin.ico: read of 1128 returned 1127
/usr/bin/x86_64-w64-mingw32-windres: preprocessing failed.
Makefile:9855: recipe for target 'qt/res/bitcoin-qt-res.o' failed
make[2]: *** [qt/res/bitcoin-qt-res.o] Error 1
make[2]: Leaving directory '/usr/src/arciris/src'
Makefile:9323: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/usr/src/arciris/src'
Makefile:747: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1

ok done it is compiled thanks for the help though

Alternate cryptocurrencies / Altcoin Discussion / Re: Build .exe for my new altcoin

on: September 16, 2019, 05:58:12 AM

okay i tried the steps now i am stuck here

Code:

Making all in src
make[1]: Entering directory '/usr/src/arciris/src'
make[2]: Entering directory '/usr/src/arciris/src'
make[3]: Entering directory '/usr/src/arciris'
make[3]: Leaving directory '/usr/src/arciris'
make[3]: Entering directory '/usr/src/arciris/src/secp256k1'
make[3]: Leaving directory '/usr/src/arciris/src/secp256k1'
  GEN      qt/res/bitcoin-qt-res.o
/usr/bin/x86_64-w64-mingw32-windres: ./qt/res/icons/bitcoin.ico: read of 1128 returned 1127
/usr/bin/x86_64-w64-mingw32-windres: preprocessing failed.
Makefile:9855: recipe for target 'qt/res/bitcoin-qt-res.o' failed
make[2]: *** [qt/res/bitcoin-qt-res.o] Error 1
make[2]: Leaving directory '/usr/src/arciris/src'
Makefile:9323: recipe for target 'all-recursive' failed
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory '/usr/src/arciris/src'
Makefile:747: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1

Alternate cryptocurrencies / Altcoin Discussion / Re: Build .exe for my new altcoin

on: September 16, 2019, 04:11:08 AM

Quote from: HeistToken on September 16, 2019, 03:58:14 AM Have you installed Mingw-w64? Yes i did by following command sudo apt install g++-mingw-w64-x86-64

Alternate cryptocurrencies / Altcoin Discussion / Build .exe for my new altcoin

on: September 16, 2019, 03:44:21 AM

I have forked litecoin0.15 https://github.com/vanshtah/Arc-Iris Wallet is compling and its is working good in linux but after following all the instructions given in doc for building it for windows i didn't get .exe file i am building the files in ubuntu 16.04 can someone help?

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