Bitcoin core – mining a private peercoin fork

I am trying to start a local test blockchain fork from Peercoin. I updated the Genesis and network parameters, removed the new Genesis hash and successfully started and connected two nodes.

Since the internal miner already has an earlier version, I can no longer use it generate or setgenerate true dictate.
I tried BFGMiner. CGMiner and Easy Miner starting the chain by mining on my cpu could be successful with any of these.

After a long research I found ntgbtminer, ntgbtminer successfully connects to my local node and checks the block. After mining the block, however, an error is returned when sending the block.

Average Mhash/s: 0.3563

Solved a block! Block hash: 0000000d5ab62bdb1eab6e896445cf1aef78fe826770738b7258fd67fc4ea212
Submitting: 0300000094c7f068b4fe7ffd581c1b75e5ee20eca72780e309bf6de73a49395f0300000053a1ec385c7b91514c73386cbf7253bc4765a9cda352cf04c73575735219ee2341ed265effff0f1d100eac2e0101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff18010148656c6c6f2066726f6d205370696465722100000000ffffffff0100078142170000001976a914a9c679338365a9006088646cb630b7cfd535e22288ac00000000 

Inside rpc
Preparing Request
Traceback (most recent call last):
  File "", line 435, in 
    standalone_miner(bin2hex("Hello from Spider!"), "PQ4s7ZxMAGt197eL9ths3Jensn7vSqbJ6r")
  File "", line 432, in standalone_miner
  File "", line 63, in rpc_submitblock
    try: return rpc("submitblock", (block_submission))
  File "", line 42, in rpc
    f = urllib2.urlopen(request)
  File "/usr/lib/python2.7/", line 154, in urlopen
    return, data, timeout)
  File "/usr/lib/python2.7/", line 435, in open
    response = meth(req, response)
  File "/usr/lib/python2.7/", line 548, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/", line 473, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.7/", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/", line 556, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
urllib2.HTTPError: HTTP Error 500: Internal Server Error

If I try to submit the block manually, it returns the error message.

./bitcoinv1d -datadir=$HOME/n1 submitblock "0300000094c7f068b4fe7ffd581c1b75e5ee20eca72780e309bf6de73a49395f0300000053a1ec385c7b91514c73386cbf7253bc4765a9cda352cf04c73575735219ee23d6c2265effff0f1d241959010101000000010000000000000000000000000000000000000000000000000000000000000000ffffffff18010148656c6c6f2066726f6d205370696465722100000000ffffffff0100078142170000001976a914a9c679338365a9006088646cb630b7cfd535e22288ac00000000"  
error: {"code":-22,"message":"Block does not start with a coinbase"}

Bitcoin Core – If I download the 160 GB, will I be a global node?

I have a question, I have searched a lot, but I have no answers
I installed Bitcoin Core and after opening the app about 160 GB are downloaded. It will take two weeks to complete
My question is, if I wait this time and the download is complete, should I be a global node?
is my wallet stored on global servers?
Now that I'm in the local version, my wallet is removed every time the server is restarted or when I back up the new wallet with the wrong account balance, and I get an empty wallet!
Thank you very much

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address – How many possible addresses per private Bitcoin key?

This depends heavily on the type of locking condition you want to meet. The addresses you mentioned represent a "standard" lockout state in which the user reveals their public key and associated signature to issue the blocked bitcoins. However, you can create custom scripts and then convert them to standard addresses.

For example, if you lock some bitcoins in a CLTV script with the same private key, a completely different address is generated. You can use CSV or other custom opcodes like OP_ADD to generate these custom scripts and then package the script in P2SH or P2WSH. When you spend the money, you have to uncover the custom script and the signatures should match. If you include the ability to generate default addresses from the custom script, the options are endless.

It should also be noted that a compressed public key generates a completely different address than an uncompressed public key.

blockchain fork – From today's perspective, which currently available Bitcoin clients are most likely to follow the longest chain in a month?

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Visit Stack Exchange customer service – Bitcoin Stack Exchange

Does anyone know of direct / live customer service? I've had multiple requests with the same problem, what I'm getting is just's default response, which I think is total nonsense.

In short, there is a transaction d69c2c14897a516917932f0ed0c2e04ed0380c63709d103d66541e6c77e34406 that is already to be confirmed, but indicates an unconfirmed transaction and the BTC cannot be credited to the wallet that also belongs to Therefore need help with Live / Real customer service.

Below is the standard template I get as an answer.

Friday at 12:28 p.m.
Please check the transaction d69c2c14897a516917932f0ed0c2e04ed0380c63709d103d66541e6c77e34406.
When using another platform (at least 3) this transaction was confirmed, but not on Unfortunately, the 0.2 to be debited was in the 18hBv8j15E4iDJ7V7pKKiJN4hGvyRZCvkb wallet, since the transaction had probably been confirmed.

Confirmation 2.JPG (60 KB)
Confirmation 1.JPG (70 KB)

Saturday at 7:10 a.m.
Hi there,

I am sorry that you have heard of these problems. I can give you a little bit more information about how transaction confirmations work. Finally, an unconfirmed transaction is either included in a block and confirmed by a mining pool. Or it will be rejected by the network if it is not resent, usually within 7 days. If at some point it is rejected, don't worry, the money will stay in the address from which it was sent. At this point, we can only recommend that you wait and see whether your transaction is included in a block.

Like all wallet providers, blockchain has no control over the speed of confirmation and unfortunately cannot speed up transactions. It always depends on the network of miners.

We are doing everything we can to reduce the number of pending transactions. This is why dynamic Bitcoin fees are used in your blockchain wallet, depending on the current network conditions. To find out more, read our blog here:

Wallet Security – Bitcoin Stack Exchange

There is a difference between a traditional wallet and a BIP32 / 39 based mnemonic and seed system.

Traditionally, a paper wallet is for a single address with a single private key. When importing into another wallet, there may have been concerns that the change to a transaction will not be returned to that single address, but sent to another address that is unique to that online wallet.

This can be easily solved with a wallet like electrum, which ensures that changes are sent back to the individual address, since each wallet you create contains only this one address.

If you import this address into an existing wallet, you will need to create a transaction that will return the change to that address.

With BIP32 / 39, the start value is imported as a whole – this means that not just an address, but the entire address chain is added. As a result, any change will either be returned to the return address or to another address controlled by your mnemonic. This is much safer and is for privacy.

Of course, this also means that if your mnemonics are compromised, all of your addresses will be compromised.

Bitcoin core – Bitcoind error "storage space is too low!" refer to RAM or actual hard drive?

After completing the "Initial Block Download" I had to re-index:

(BTC_Core_Expmnt)# bitcoind -reindex -datadir=/mnt/BTC_Core_Expmnt

The debug.log showed that everything was fine. and the start of the process:

(2020-01-20T07:43:41Z Loaded 119369 blocks from external file in 6005ms
2020-01-20T07:43:41Z Reindexing block file blk00001.dat...)

Then a while later:

(2020-01-20T09:05:59Z Reindexing finished)

But Bitcoind kept grinding … well, what is all this? ::

(2020-01-20T09:05:59Z Pre-allocating up to position 0x100000 in
(rev00000.dat 2020-01-20T09:05:59Z UpdateTip: new best= 
(height=1 version=0x00000001 log2_work=33.000022 tx=2
(date='2009-01-09T02:54:25Z' progress=0.000000 cache=0.0MiB(1txo))

In any case, it has come to this:

(2020-01-20T09:59:00Z UpdateTip: new best=
(height=359645 version=0x00000003 log2_work=82.893764 tx=71128141
(date='2015-06-06T07:25:10Z' progress=0.143166

Then it fell over:

(2020-01-20T09:59:00Z *** Disk space is too low!
(2020-01-20T09:59:00Z Error: Disk space is too low!
(Error: Disk space is too low!
(2020-01-20T09:59:00Z Failed to connect best block
( (Disk space is too low! (code 0)) )

Which is strange, because there should still be 20GB free since the size of
BTC_Core_Expmnt should be 300 GB.

(BTC_Core_Expmnt)# du -h
102M    ./blocks/index
275G    ./blocks
56K     ./bitcoin-
60K     ./bitcoin-
64K     ./bitcoin-
73M     ./bitcoin-
8.0K    ./bitcoin-
440K    ./bitcoin-
74M     ./bitcoin-
16K     ./lost+found
3.4G    ./indexes/txindex
3.4G    ./indexes
914M    ./chainstate
280G    .

Isn't 300 GB enough in 2020 to run a full node? I thought it would. Ask for helpful tips, as nothing else can be seen in debug.log.

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Plan 1 1.00 – 500.00 250.00
Plan 2 $ 501.00 – $ 1000.00 300.00
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Plan 4 $ 5001.00 – $ 10000.00 450.00
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Plan 1 1.00 – 1000.00 550.00
Plan 2 $ 1001.00 – $ 2500.00 750.00
Plan 3 $ 2501.00 – $ 5000.00 850.00
Plan 4 $ 5001.00 – $ 10000.00 $ 1000.00
Plan 5 $ 10001.00 – $ 75000.00 1250.00

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Plan 1 1.00 – 2500.00 4000.00
Plan 2 $ 2501.00 – $ 5000.00 5500.00
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bitcoind – json_rpc_call Solo Mining with Bitcoin under Windows 7 for Antminer

I am setting up BitcoinD on a Windows 7 PC. I have configured for the default settings except user / pw and rpcallowip = / also have 192.168.1. * tried without luck.

I would ultimately like to use an Antminer to connect to solo mining, but I can only use it for mining on the same computer it is running on.

HOW IT WORKS: Use bfgminer with the following command line:
bfgminer-5.0.0-win64 bfgminer-5.0.0-win64 bfgminer.exe -o -u rpcuser -p rpcpw

DO NOT WORK: Use bfgminer-5.0.0-win64 bfgminer-5.0.0-win64 bfgminer.exe -o -u rpcuser -p rpcpw

The only difference is the IP address where 123 is my IP.

Error: "json_rpc_call failed, try again after 30 seconds"

I looked at the firewall and it contains entries for "Bitcoin Core".

"Netstat -a" output:

Antminer says Pool is dead.

How can I get another computer or mine clearer on my network to connect for solo mining?

Thank you very much.