Sent wallet to desktop

I had bitcoin core and dummy me deleted it but I sent my wallet to desktop and now I have a new wallet, are there any way to get the wallet that is on my desktop back into bitcoin core? I tried to copy and paste but that does not work. I went to %APPDATA%\roaming\bitcoin but could not do a copy and paste into it. Any way to get my wallet back into it. Thanks for your time. RoberT

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How to get transaction with Bitcoin Core?

I’ve have a fully tx index node in v.11 and I can do the following below just fine,

bitcoin-cli getrawtransaction c6556ca7e143d108f5ef594057ff83a78bceb4b5fdc565ae160b4783cddad00f

but with a fully tx index node in v.12, I cannot and I get an error

error code: -5 error message: No information available about transaction 

So what has change in v.12 that broke this and what can do to get this functionality back. I already have txindex=1 in my conf file and I already tried bitcoind -daemon -reindex

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Coinbase is losing the ability to service Canadians

Just got this email. Thought I would share with any Canadians out there using Coinbase right now who might have missed it.

Dear valued Coinbase customer,

As of August 1, Coinbase’s Canadian payments provider, Vogogo, will be shutting down its payment processing business. When this occurs, Coinbase will no longer be able to support Canadian EFT transfers, Interac transfers, or the storage of customer CAD on Coinbase.

All customer CAD stored with Coinbase MUST be withdrawn off site or converted to digital currency by July 29th.

If you hold CAD in your Coinbase account, you must liquidate your CAD holdings before July 29th by either: • creating a withdrawal to your linked bank account or • exchanging stored CAD for digital currency. If you are unable to withdraw or exchange your CAD before July 29th, Coinbase will suspend your account and significant fees will be incurred for CAD withdrawals. We are disappointed to lose the ability to offer these payment methods for our Canadian customers and hope to provide additional payment methods in the future. We appreciate your support during this change.

If you have any questions regarding this or would like to contact us, please visit our Support Center.

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Bitcoin

stratum server segfaults

I keep getting this segfault, but not sure why. Running Ubuntu 14.04, 128GB RAM, Intel(R) Xeon(R) CPU E5-1650 v3 @ 3.50GHz, 12 cores

The stratum code I’m using is:

https://github.com/tpruvot/yiimp/tree/next/stratum

 Program received signal SIGABRT, Aborted. [Switching to Thread 0x7ffe2ffff700 (LWP 20672)] 0x00007ffff65ffc37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 56      ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory. #0  0x00007ffff65ffc37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56 #1  0x00007ffff6603028 in __GI_abort () at abort.c:89 #2  0x00007ffff663c2a4 in __libc_message (do_abort=1, fmt=fmt@entry=0x7ffff674a6b0 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175 #3  0x00007ffff6649e26 in malloc_printerr (ptr=0x7ffe28000188, str=0x7ffff6746882 "malloc(): memory corruption", action=<optimised out>) at malloc.c:4996 #4  _int_malloc (av=0x7ffe28000020, bytes=89) at malloc.c:3447 #5  0x00007ffff664b6c0 in __GI___libc_malloc (bytes=89) at malloc.c:2891 #6  0x00007ffff739cdad in operator new(unsigned long) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #7  0x00007ffff73f8249 in std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #8  0x00007ffff73f9971 in char* std::string::_S_construct<char const*>(char const*, char const*, std::allocator<char> const&, std::forward_iterator_tag) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #9  0x00007ffff73f9d88 in std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6 #10 0x00000000004165a8 in build_submit_values (submitvalues=0x7ffe2fffbde0, templ=0x7fffe002ced0, nonce1=0x7ffe28001d38 "81000035", nonce2=0x7ffe2fffbd80 "762b0000", ntime=0x7ffe2fffbda0 "577edf85", nonce=0x7ffe2fffbdc0 "ba58903f") at client_submit.cpp:27 #11 0x000000000041857e in client_submit (client=0x7ffe280008c0, json_params=0x7ffe28006550) at client_submit.cpp:440 #12 0x0000000000416132 in client_thread (p=0x83) at client.cpp:490 #13 0x00007ffff7bc4184 in start_thread (arg=0x7ffe2ffff700) at pthread_create.c:312 #14 0x00007ffff66c337d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 

Any thoughts on how to fix this?

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Can more transactions be processed within a centralized bitcoin exchanges than in the rest of the bitcoin network?

I’ve heard that centralized exchanges are more efficient, and that a centralized bitcoin system as a whole would allow for more transactions to be processed. Does that mean that within centralized bitcoin exchanges more transactions can be processed per second?

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