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so i want to create a fake transaction 1 that will go trough but will not get confiremd because its not real how can i do that?
you can use raw transaction command line to create an invalid transaction, it will be rejected by miner. I suppose. |
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In P2PKH, the public key scriptPubKey: OP_DUP OP_HASH160 <pubKeyHash> OP_EQUALVERIFY OP_CHECKSIG scriptSig: <sig> <pubKey> is the public key of the sender? the hash is from the sender public key? the signature is of the sender? |
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There is a separate binary called bitcoin-tx which lets you do some transaction specific things without needing to run the full Bitcoin Core. It needs a main function for that binary to work.
It looks like bitcoin-tx.cpp is never built into the bincoind binary of Bitcoin core, isn't it? |
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thank you. should have seen that
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I notice that is a main() function in bitcoin-tx.cpp. This main() is not the main function of bitcoin core. Because the main function is in bitcoind.cpp
So why there is a main() in bitcoin-tx.cpp ?
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Thanks for putting your time and efforts on this Bitcoin core. I've bookmarked and read it, when I have free time  You are welcome. I shall continue to write when i have time. |
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In general, anyone trying to walk through the code should understand the concept of "signals and slots". Specifically with Boost and QT's implementation of signals and slots:
Please see http://embedded-design-vic.blogspot.my/ for latest article about signals in Bitcoin core. |
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So far, in code analysis, I have not come across signals and slots yet. I will search for it in the code. Thank you. |
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thank you for your encouragement.
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has anyone built electrum on mac os?
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when i build electrum from source, i get the following errors. How could i solve it? i use OS X sierra.
vic$ ARCHFLAGS="-arch i386 -arch x86_64" sudo python setup-release.py py2app --includes sip
running py2app
creating /Users/vic/Downloads/electrum/build/bdist.macosx-10.7-x86_64/python2.7-standalone/app
creating /Users/vic/Downloads/electrum/build/bdist.macosx-10.7-x86_64/python2.7-standalone/app/collect
creating /Users/vic/Downloads/electrum/build/bdist.macosx-10.7-x86_64/python2.7-standalone/app/temp
creating build/bdist.macosx-10.7-x86_64/python2.7-standalone/app/lib-dynload
creating build/bdist.macosx-10.7-x86_64/python2.7-standalone/app/Frameworks
/Users/vic/Downloads/electrum/.eggs/modulegraph-0.15-py2.7.egg/modulegraph/find_modules.py:258: UserWarning: No module named sip
/Users/vic/Downloads/electrum/.eggs/modulegraph-0.15-py2.7.egg/modulegraph/find_modules.py:273: UserWarning: No package named packages
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saya akan tutup questionnaire, sila menyokong lah
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sila menyokong questionnaire saya !
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Q1: What is your nationality?
indonesia
Q2: If you want to be considered for lucky draw, please write your email address in the space provided below.
XXXX
Q3: Are you 18 years old and above?
yes
PAGE 3: Screening Questions
Q4: Have you heard of Bitcoin?
yes
PAGE 4: Screening Questions
Q5: Have you used ecommerce online?
yes
PAGE 5: Screening Questions
Q6: Have you used Bitcoin in the business transactions?
NO -----> click "NO" here
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USD$20 lucky draw prize. please click "No" to Have you used Bitcoin in the business transactions
so you can move to next section.
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i have 35 people now, still looking for more people to fill the questionnaire.
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selamat tahun baru 2017.
please help to fill up my bitcoin survey. thank you.
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