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16 2017-03-13T03:00:20 <Micheal_PVR> What's bitcoin's hexadecimal WIF code?
17 2017-03-13T03:06:51 <achow101> Micheal_PVR: WIF is not in hex
18 2017-03-13T03:07:23 <Micheal_PVR> I understand that
19 2017-03-13T03:07:42 <Micheal_PVR> but there's a hexadecimal code that determines the byte to be placed for WIF
20 2017-03-13T03:08:00 <Micheal_PVR> I.E LTC would have a different code
21 2017-03-13T03:08:17 <Micheal_PVR> actually, the LTC code is 0xB030
22 2017-03-13T03:08:41 <Micheal_PVR> I've read that the BTC code is 0x80, but I'm having difficulties so wanted confirmation
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58 2017-03-13T09:19:23 <ThomasV> jonasschnelli: hi, does dbb support rbf transactions?
59 2017-03-13T09:19:57 <jonasschnelli> ThomasV: the device yes,... but the app no. So.. no.
60 2017-03-13T09:20:16 <jonasschnelli> ThomasV: I guess it should work with the Electrum plugin though...
61 2017-03-13T09:20:25 <jonasschnelli> Haven't tried.
62 2017-03-13T09:20:38 <ThomasV> where do you pass the txin sequence parameter?
63 2017-03-13T09:20:59 <ThomasV> I don't see that
64 2017-03-13T09:21:16 <jonasschnelli> Electrum plugin or native DBB app?
65 2017-03-13T09:21:27 <ThomasV> in the electrum plugin
66 2017-03-13T09:21:40 <ThomasV> I can add it if you show me how to :)
67 2017-03-13T09:21:42 <jonasschnelli> It's done by douglas... Let me check.. 1sec
68 2017-03-13T09:22:48 <jonasschnelli> I'd say the tx creation is in the electrum part (and not in the plugin)... i'll ask Douglas.
69 2017-03-13T09:23:08 <ThomasV> also, there is a check in the plugin that seems to be copied from ledger: "P2SH / regular input mixed in same transaction not supported"
70 2017-03-13T09:23:17 <ThomasV> is that a limitation of your device too?
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72 2017-03-13T09:24:28 <ThomasV> jonasschnelli: I don't have my device to test right now. I'm asking because we realized that the ledger plugin does not support RBF
73 2017-03-13T09:24:32 <jonasschnelli> I don't think so.. Sadly, I'm not familiar with the Electrum plugin. I'll have a look.
74 2017-03-13T09:24:44 <ThomasV> I will test later tonight
75 2017-03-13T09:24:47 <jonasschnelli> Very likely that we also don't support it.
76 2017-03-13T09:25:05 <ThomasV> ok, but it should be easy to add
77 2017-03-13T09:25:14 <ThomasV> it's just one parameter
78 2017-03-13T09:25:18 <jonasschnelli> Its just the INTMAX()-2 right?
79 2017-03-13T09:26:30 <ThomasV> the sequence parameter value? it can be any int < INTMAX
80 2017-03-13T09:27:17 <jonasschnelli> ThomasV I don't see a tx creation in the plugin, only signing. I think tx creation is handled outside the plugin. I would expect it does use the inputs nSequence you use per default in your tx creation code.
81 2017-03-13T09:27:42 <ThomasV> so your device parses the native tx?
82 2017-03-13T09:28:09 <jonasschnelli> No.. just creates a signature for the hash.
83 2017-03-13T09:28:33 <ThomasV> oh, right, you don't display anything because there's no screen :)
84 2017-03-13T09:28:57 <jonasschnelli> Yes. And the SmartVerification (requires a web-connection) is not implemented in Electrum.
85 2017-03-13T09:29:09 <ThomasV> ok
86 2017-03-13T09:29:13 <jonasschnelli> But we should do that so one could verify the tx over a smartphone.
87 2017-03-13T09:29:30 <ThomasV> how does it work?
88 2017-03-13T09:29:47 <jonasschnelli> The pairing process is a bit complex and currently only available over our desktop app.
89 2017-03-13T09:30:09 <ThomasV> btw, do you plan to create a device with a screen in the future?
90 2017-03-13T09:30:25 <jonasschnelli> It's a ECDH between the device and your smartphone.
91 2017-03-13T09:30:46 <jonasschnelli> +xor a random blink code from the LED to avoid MITM during paring.
92 2017-03-13T09:31:05 <jonasschnelli> Then, it goes encrypted over the internet from Wallet <-> Smartphone.
93 2017-03-13T09:31:18 <ThomasV> I see
94 2017-03-13T09:31:24 <jonasschnelli> It would be possible from the electrum plugin...
95 2017-03-13T09:31:53 <jonasschnelli> Sometimes i'd prefere a screen.
96 2017-03-13T09:32:19 <jonasschnelli> But,... complex transaction are much simpler to verify on a interactive smarttphone then on a 128x32pixel screen.
97 2017-03-13T09:32:34 <jonasschnelli> Or if you want to sign a PDF,... not possible on a calculator size screen.
98 2017-03-13T09:32:34 <ThomasV> yeah :)
99 2017-03-13T09:33:13 <jonasschnelli> I'll give it a try with Electrum 2.8.0 and RBF...
100 2017-03-13T09:33:34 <jonasschnelli> ThomasV: I guess you use BIP125 opt-in RBF (nSequence == intmax()-2)?
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103 2017-03-13T09:35:36 <ThomasV> jonasschnelli: I use nSequence = 0. is there a recommendation to use intmax -2 ?
104 2017-03-13T09:35:55 <jonasschnelli> This is full-RBF i guess.
105 2017-03-13T09:36:08 <jonasschnelli> Maybe check:_ https://github.com/bitcoin/bips/blob/master/bip-0125.mediawiki#summary
106 2017-03-13T09:36:42 <ThomasV> I'm checking right now
107 2017-03-13T09:37:33 <jonasschnelli> Well,.. I think nSequence = 0 is also BIP125.
108 2017-03-13T09:38:38 <ThomasV> jonasschnelli: well, if other wallets use maxint-2, then using 0 leaks some info about which wallet you're using
109 2017-03-13T09:38:56 <ThomasV> so it's a privacy issue
110 2017-03-13T09:39:15 <ThomasV> I never looked at what value other wallets use
111 2017-03-13T09:39:52 <ThomasV> that'll be a new topic for the meeting :)
112 2017-03-13T09:39:54 <jonasschnelli> I don't know about other, Core uses -2 (https://github.com/bitcoin/bitcoin/blob/master/src/wallet/wallet.cpp#L2515)
113 2017-03-13T09:40:39 <jonasschnelli> I got confused. BIP125 is opt in *full* RBF. So nSequence = 0 would also confirm to BIP125.
114 2017-03-13T09:41:03 <jonasschnelli> But I think maxint-2 makes most sense for wallets.
115 2017-03-13T09:43:10 <ThomasV> before I fully read that BIP, I was under the impression that you needed to increase nSequence in order to bump the fee, that's why I set it to zero.
116 2017-03-13T09:43:41 <ThomasV> but I think it's better to standardize this, for privacy
117 2017-03-13T09:43:49 <jonasschnelli> I think we can keep it maxint-2 for future bumps.
118 2017-03-13T09:43:59 <ThomasV> yes you can
119 2017-03-13T09:44:09 <ThomasV> I keep it zero, I don't increase it
120 2017-03-13T09:44:09 <jonasschnelli> Yes. It should have been standardised in the BIP.
121 2017-03-13T09:44:23 <jonasschnelli> Okay.. yes. We should discuss that 1st/2nd april.
122 2017-03-13T09:44:45 <ThomasV> I guess it's going to be non-controversial :)
123 2017-03-13T09:44:53 <jonasschnelli> AFAIK Electrum and Core are the only wallets who support BIP125 (not sure though)
124 2017-03-13T09:45:02 <ThomasV> greenaddress too, no?
125 2017-03-13T09:45:54 <jonasschnelli> GAit: ping.
126 2017-03-13T09:46:15 <ThomasV> I'll set it to maxint-2 for now
127 2017-03-13T09:46:22 <jonasschnelli> Yes. Makes sense.
128 2017-03-13T10:04:10 <ThomasV> jonasschnelli: https://github.com/spesmilo/electrum/commit/2d8df85aab780f6ceecf64701ae41c836fca4052
129 2017-03-13T10:04:52 <jonasschnelli> Looks good! Thanks
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134 2017-03-13T11:01:36 <johtso> hey, is there any way to work out why this testnet transaction I created isn't being processed? https://live.blockcypher.com/btc-testnet/tx/49f314ee9a31633688637abc9712a62e6222a659afad9b91db25ac16894a6958/
135 2017-03-13T11:03:19 <johtso> It's spending from a p2sh address with this script: 2, key1, key2, 2, OP_CHECKMULTISIG
136 2017-03-13T11:04:17 <johtso> I'm using python-bitcoinlib, and the signed transaction validated successfully
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223 2017-03-13T22:52:10 <Iriez> Can someone explain why release notes shows 101 contributors but github only shows 24? For reference - https://www.reddit.com/r/ethereum/comments/5x1vk2/eth_price_discussion_frowned_upon/dew1c47/?context=3
224 2017-03-13T22:52:31 <Iriez> (yes i know thats eth sub, trying to defeat the trolls who are everywhere shitpost)
225 2017-03-13T22:52:35 <Iriez> ing*
226 2017-03-13T23:18:26 <achow101> Iriez: github credits the committers, not authors, but release notes are usually by author, not committer
227 2017-03-13T23:18:55 <achow101> people who commit on github (for stuff like document changes) don't show up in the contributors list, but do show up when release notes are compiled
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