Thursday, November 30, 2017

macOS High Sierra: Ruby LoadError (oauth) & Fix

Error message:

/System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- oauth (LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/2.3/usr/lib/ruby/2.3.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from tweet_movierole.rb:2:in `<main>'


Command (Installing OAuth):

$ sudo gem install oauth
Password:


Result:

Fetching: oauth-0.5.3.gem (100%)
Successfully installed oauth-0.5.3
Parsing documentation for oauth-0.5.3
Installing ri documentation for oauth-0.5.3
Done installing documentation for oauth after 14 seconds
1 gem installed




Wednesday, November 29, 2017

Tuesday, November 28, 2017

macOS High Sierra Keychain Access' Keychain Deletion Bug

Ivan on Tech: Why is Segwit so important for Bitcoin Lightning Network? Programmer exp...



Transaction malleability.
Wegwit fix it by removing signature in transaction.
Payment channel.
Funding payment channel.
ID of funding transaction.

Wednesday, November 15, 2017

Wednesday, November 1, 2017

CPUMiner: LA Pool: Mining BitZeny

$ minerd --version

cpuminer 2.4
 built on Nov  1 2017
 features: x86_64 SSE2 AVX AVX2 XOP
libcurl/7.54.0 SecureTransport zlib/1.2.8
libjansson 2.10


$ minerd -a yescrypt -o stratum+tcp://jp.lapool.me:3014 -u USERID.WORKER -p PASSWORD

[2017-11-01 18:53:58] 4 miner threads started, using 'yescrypt' algorithm.
[2017-11-01 18:53:58] Starting Stratum on stratum+tcp://jp.lapool.me:3014
[2017-11-01 18:53:58] Binding thread 0 to cpu 0
[2017-11-01 18:53:58] Binding thread 1 to cpu 1
[2017-11-01 18:53:58] Binding thread 2 to cpu 2
[2017-11-01 18:53:58] Binding thread 3 to cpu 3
[2017-11-01 18:53:58] Stratum requested work restart
[2017-11-01 18:54:04] thread 1: 3863 hashes, 0.71 khash/s
[2017-11-01 18:54:04] accepted: 0/1 (0.00%), 0.71 khash/s (booooo)
[2017-11-01 18:54:06] thread 2: 4615 hashes, 0.71 khash/s
[2017-11-01 18:54:06] accepted: 0/2 (0.00%), 1.42 khash/s (booooo)
[2017-11-01 18:54:06] thread 0: 5146 hashes, 0.70 khash/s
[2017-11-01 18:54:06] accepted: 0/3 (0.00%), 2.12 khash/s (booooo)
[2017-11-01 18:54:08] thread 1: 2078 hashes, 0.67 khash/s
[2017-11-01 18:54:08] accepted: 0/4 (0.00%), 2.07 khash/s (booooo)
[2017-11-01 18:54:08] thread 3: 6401 hashes, 0.69 khash/s
[2017-11-01 18:54:08] accepted: 0/5 (0.00%), 2.77 khash/s (booooo)
[2017-11-01 18:54:16] thread 3: 5229 hashes, 0.71 khash/s
[2017-11-01 18:54:16] accepted: 0/6 (0.00%), 2.78 khash/s (booooo)
[2017-11-01 18:54:23] thread 0: 11529 hashes, 0.69 khash/s
[2017-11-01 18:54:23] accepted: 0/7 (0.00%), 2.78 khash/s (booooo)
[2017-11-01 18:54:24] thread 3: 5995 hashes, 0.68 khash/s
[2017-11-01 18:54:24] accepted: 0/8 (0.00%), 2.75 khash/s (booooo)
[2017-11-01 18:54:38] thread 0: 10101 hashes, 0.67 khash/s
[2017-11-01 18:54:38] accepted: 0/9 (0.00%), 2.73 khash/s (booooo)
[2017-11-01 18:54:43] thread 3: 13322 hashes, 0.70 khash/s
[2017-11-01 18:54:43] accepted: 0/10 (0.00%), 2.75 khash/s (booooo)
[2017-11-01 18:54:44] thread 1: 25156 hashes, 0.69 khash/s
[2017-11-01 18:54:44] accepted: 0/11 (0.00%), 2.77 khash/s (booooo)
[2017-11-01 18:54:51] thread 3: 5339 hashes, 0.73 khash/s
[2017-11-01 18:54:51] accepted: 0/12 (0.00%), 2.80 khash/s (booooo)
[2017-11-01 18:55:01] thread 3: 6307 hashes, 0.60 khash/s
[2017-11-01 18:55:01] accepted: 0/13 (0.00%), 2.68 khash/s (booooo)
[2017-11-01 18:55:08] thread 2: 42511 hashes, 0.68 khash/s
[2017-11-01 18:55:17] thread 3: 9975 hashes, 0.64 khash/s
[2017-11-01 18:55:17] accepted: 0/14 (0.00%), 2.69 khash/s (booooo)
[2017-11-01 18:55:30] thread 1: 29533 hashes, 0.65 khash/s
[2017-11-01 18:55:30] accepted: 0/15 (0.00%), 2.65 khash/s (booooo)
[2017-11-01 18:55:39] thread 2: 20254 hashes, 0.65 khash/s
[2017-11-01 18:55:39] accepted: 0/16 (0.00%), 2.62 khash/s (booooo)
[2017-11-01 18:55:39] thread 0: 40480 hashes, 0.66 khash/s