Hi everybody,
I have forked the bitcoin code (v0.16.99.0-9bedf07f3-dirty), modified the genesis block and wrote some lines of code to calcuate nonce / hash / etc of the genesis block .. see code below
I have a private network running 5 nodes and I mined several blocks using cpuminer in order to get some money. Everthing worked fine and i was a "rich kid" after a few minutes.
Moreover, i have written some python code to store values in OP_RETURN in the blockchain using the bitcoind REST API and everything seems to work fine and the transaction is visible in the mempool on all nodes.
Eventually, I use cpuminer again and while it mines block after block devotedly, the transaction remains unconfirmed in the mempool. This is also the case for transactions which I have sent with bitcoin-cli sendtoaddress .....
Any ideas ?
Thanks
Thomas
bitcoin-cli getrawtransaction 86b9ac32b8816ce3fe105ff1491b7e5d4be4a4c45905e4f153c923a3699f35c0 1
{
"txid": "86b9ac32b8816ce3fe105ff1491b7e5d4be4a4c45905e4f153c923a3699f35c0",
"hash": "ce8437bb9ff1d3aa5a675cd34925a5cc093c305f477e82002d3e8c1584b0e1ef",
"version": 2,
"size": 266,
"vsize": 185,
"locktime": 0,
"vin": [
{
"txid": "b5c945322f0ba2151ac2b095cd4e37fcd943a24ed7c427b4cd0b373643df68db",
"vout": 0,
"scriptSig": {
"asm": "00145927bb374bf9d14a3ec8555a3b8ed010709bae1e",
"hex": "1600145927bb374bf9d14a3ec8555a3b8ed010709bae1e"
},
"txinwitness": [
"304402207c42f52046d0c756f95b688d10b392e40b1c2f1e44ced2c5c2bd9811f56fde520220637
78db537f7d9ca4cd328c02749846e53bd3241921ab0aa66cccf5de431658201",
"035a59ca6537235b60c84f227c8b341dca7e476ed59c5b499a2f244cb57b69730c"
],
"sequence": 4294967295
}
],
"vout": [
{
"value": 0.31400000,
"n": 0,
"scriptPubKey": {
"asm": "OP_HASH160 b80626c22e26a5401c98925f1f120be4a7589e6d OP_EQUAL",
"hex": "a914b80626c22e26a5401c98925f1f120be4a7589e6d87",
"reqSigs": 1,
"type": "scripthash",
"addresses": [
"3JU3dFJL9hJkiMcMtPHAAHRTRBtde532o7"
]
}
},
{
"value": 49.58600000,
"n": 1,
"scriptPubKey": {
"asm": "OP_HASH160 4086a7b517483719a876d68857d85285cb2762c6 OP_EQUAL",
"hex": "a9144086a7b517483719a876d68857d85285cb2762c687",
"reqSigs": 1,
"type": "scripthash",
"addresses": [
"37aCUpcdy56sD8mb78rCHjX9x6mX2ts1dx"
]
}
},
{
"value": 0.00000000,
"n": 2,
"scriptPubKey": {
"asm": "OP_RETURN 3131313131313131",
"hex": "6a083131313131313131",
"type": "nulldata"
}
}
],
"hex": "02000000000101db68df4336370bcdb427c4d74ea243d9fc374ecd95b0c21a15a20b2f3245c9b50
0000000171600145927bb374bf9d14a3ec8555a3b8ed010709bae1effffffff034020df01000000
0017a914b80626c22e26a5401c98925f1f120be4a7589e6d87403b8e270100000017a9144086a7b
517483719a876d68857d85285cb2762c68700000000000000000a6a083131313131313131024730
4402207c42f52046d0c756f95b688d10b392e40b1c2f1e44ced2c5c2bd9811f56fde52022063778
db537f7d9ca4cd328c02749846e53bd3241921ab0aa66cccf5de43165820121035a59ca6537235b
60c84f227c8b341dca7e476ed59c5b499a2f244cb57b69730c00000000"
}
$bicoin-cli listtransactions
{
"account": "",
"address": "3JU3dFJL9hJkiMcMtPHAAHRTRBtde532o7",
"category": "send",
"amount": -0.31400000,
"label": "legacy",
"vout": 0,
"fee": -0.10000000,
"confirmations": 0,
"trusted": true,
"txid": "86b9ac32b8816ce3fe105ff1491b7e5d4be4a4c45905e4f153c923a3699f35c0",
"walletconflicts": [
],
"time": 1524838528,
"timereceived": 1524838528,
"bip125-replaceable": "no",
"abandoned": false
}
class CMainParams : public CChainParams {
public:
CMainParams() {
strNetworkID = "main";
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Height = 514; // 00000000040b4e986385315e14bee30ad876d8b47f748025b26683116d21aa65
consensus.BIP34Height = 21111;
consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6
consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182
consensus.powLimit = uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 1;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
// Deployment of BIP68, BIP112, and BIP113.
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 2456790400; // March 1st, 2016
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 2493596800; // May 1st, 2017
// Deployment of SegWit (BIP141, BIP143, and BIP147)
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 2462060800; // May 1st 2016
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 2493596800; // May 1st 2017
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x0");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x0"); //1135275
pchMessageStart[0] = 0x0c;
pchMessageStart[1] = 0x12;
pchMessageStart[2] = 0x08;
pchMessageStart[3] = 0x06;
nDefaultPort = 18443;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1524572463, 5720405,0x1e0ffff0 , 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
CBlock block = genesis;
if (true )
{
uint256 hashTarget = ArithToUint256(arith_uint256().SetCompact(block.nBits));
uint256 thash;
while(true)
{
thash = block.GetHash();
if (UintToArith256(thash) < UintToArith256(hashTarget))
break;
++block.nNonce;
}
printf("block.nTime = %u \n", block.nTime);
printf("block.nNonce = %u \n", block.nNonce);
printf("block.GetHash = %s\n", block.GetHash().ToString().c_str());
}
assert(consensus.hashGenesisBlock == uint256S("000007ceb735550638da8aa16d5c525cf278eddf422c7ed6b7f13bca16c1e4e7"));
printf("block.Merkle = %s\n", block.hashMerkleRoot.ToString().c_str());
assert(genesis.hashMerkleRoot == uint256S("13ffe96e5900022b549093047981de317ec3010c7c4a0c7aa8f0306fe9517f13"));
// Note that of those which support the service bits prefix, most only support a subset of
// possible options.
// This is fine at runtime as we'll fall back to using them as a oneshot if they don't support the
// service bits we want, but we should get them updated to support all service bits wanted by any
// release ASAP to avoid it where possible.
vSeeds.emplace_back("CENSORED");
vSeeds.emplace_back("CENSORED");
vSeeds.emplace_back("CENSORED");
vSeeds.emplace_back("CENSORED");
vSeeds.emplace_back("CENSORED");
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
bech32_hrp = "bc";
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
fDefaultConsistencyChecks = false;
fRequireStandard = true;
fMineBlocksOnDemand = false;
checkpointData = {
{
{122, uint256S("00000a8def55f5dab450e69938224ba8d52af72370b7500e100a13b59e3bdd09")},
}
};
chainTxData = ChainTxData{
};
/* disable fallback fee on mainnet */
m_fallback_fee_enabled = false;
}
};
