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5421  Economy / Services / Re: Free programming lessons on: July 16, 2019, 04:14:07 PM
Hmmm yeah sorry guys. I was about to start the rest of the tutorials and got lumbered with a heavy workload... I'm not doing anything now so I'll try and do a bit more on this.

I also couldn't work out a tutorial for installing visual studio/mono so Ill have to point you guys elsewhere for that bit...



I have telegram, I'm not sure of my username so if you can pm yours?

Would it be helpful if I make some channels on telegram and post there what I post on here also? Or send a link to it.

Send me what you've built in java and I'll try talking a look. I'm not a fan of sql, I use it but don't like it so I doubt I can teach it very well...
5422  Bitcoin / Bitcoin Technical Support / Re: [JUNE 2019] Fees are low, use this opportunity to Consolidate your small inputs! on: July 16, 2019, 12:50:45 AM
Fees are low! Just sent a 20 sat per byte transaction and it confirmed within about an hour (probably sooner).

Take the opportunity. I'm not sure if some miners are not accepting 1 sat per byte transactions but mine didn't show up on btc.com before (but I did 3 double spends so)...

Also were on July!
5423  Bitcoin / Bitcoin Technical Support / Re: How important is keeping a copy of your Bitcoin Core wallet seed? on: July 13, 2019, 07:19:12 PM
I'm curious to know if anybody knows if you can convert the xprv into a mnemonic phrase. I think i've seen somebody do it here, but i can't find it anymore.
Given that BIP mnemonics are just a way to encode a number, then as long as you can convert the xprv into a number that satisfies the requirements of BIP39, then you could convert it to a mnemonic phrase following the BIP39 algorithm...

Can anyone confirm this? Bitcoin Core don't support BIP 39 (https://bitcoin.stackexchange.com/a/88244), so i doubt xprv/seed generated by Bitcoin Core could be generated to mnemonic.

It's just a number used for encryption and the mnemonic is essentially a number base (like how English use base 10 mostly, bakers use base 13, the ancient Greeks used base 12 and computers use base 2)... You're converting a number from base 58 to hovmwever big your wordlist is.

@hcp it doesn't have to be a number devisible by 32 imo as abdusammad was doing it with an 11 bit seed a while ago (afaik) ...
5424  Other / Ivory Tower / Re: The Jet Cash coffee lounge thread. on: July 13, 2019, 06:22:58 PM
I think 8000 is a bit risky. The last fall was from 10200 to 9020.

I'd say we look like we could be forming a bear flag and if that's the case, my target would be around 8260 (the second pole doesn't go down as far as the first in this market)...

I've just sold with a hope to buy back at 8300.



Nice jazz music, is this your new background noise? I do quite like the jazz genre (it's a bit like classical but more upbeat and thus with more texture/timbre).
5425  Bitcoin / Wallet software / Re: does an Android phone wallet exist without the Google Services Framework? on: July 12, 2019, 07:23:00 PM
I don't know if electrum requires it?
I had to uninstall Google play services because it was too big for my old phone to handle and I think I ran electrum on it (not sure if it's still the same though).
5426  Bitcoin / Bitcoin Technical Support / Re: How important is keeping a copy of your Bitcoin Core wallet seed? on: July 12, 2019, 02:34:36 PM
I'm curious to know if anybody knows if you can convert the xprv into a mnemonic phrase. I think i've seen somebody do it here, but i can't find it anymore.

Not sure if this is relevant but people were doing this sort of thing with private keys.

This of a mnemonic seed phrase as a remainder function starting from right to left. Every time you take the mod of the number using the number of avaliable words to reproduce a key. I haven't seen a seed from bitcoin core but it is just a number...
5427  Bitcoin / Bitcoin Technical Support / Re: WTS my smartphone but I've got crypto in it. HELP! on: July 12, 2019, 02:12:57 AM
Bear in mind that "destroying" a mobile device can be a bit dangerous... especially if it has a non-removable Lithium Ion or Lithium Polymer battery in it that you can't remove first.

If the outer shell of the battery is compromised and the innards of the battery are exposed to air, it's very likely to oxidise violently and most likely catch fire and/or explode. There are plenty of YouTube videos showing what happens when Li-Ion and LiPo batteries are punctured. Shocked

Heat with anything in group 1 or 2 is going to damage something and produce a lot of heat...

Not to mention that you have to do it outside and if you're in a foggy or smoggy area, just don't try doing it. You might release a load of chloroethene and others that will just stay there if dust and carbon structures denser are blocking it....

If the batteries in there, you can almost always open the unit even if it looks like you can't. Batteries aren't designed to be dropped from a great height or onto a hard surface so don't try smashing it...
5428  Bitcoin / Bitcoin Technical Support / Re: Bitcoin core wallet private keys dumped to BTG core looks like BCH transactions on: July 11, 2019, 10:20:16 PM
The only forks of bch are bsv and babc.

Btg was a fork of bitcoin...

Can you share one of your addresses so we can see if it has btc/bch or Btg on it. If you're not comfortable with that, search for a btc block explorer. (don't put a private key into these sites - beginning with 5 l or k). And don't paste a private key here either...
5429  Bitcoin / Electrum / Re: $160 fee to send $10? on: July 10, 2019, 05:09:34 PM
It's a ledger logo...

what is that icon in the bottom right? i've never seen that in electrum





OP hasn't come back since 4pm on 9th. They either got their solution, forgot they made this topic or just sent the transaction anyway..
5430  Economy / Service Discussion / Re: HASHNEST Discussion and Support Thread on: July 09, 2019, 09:01:56 PM
Can this page be redeveloped: https://www.hashnest.com/hash_currencies/?

I recall there was a pie chart, maybe it could list BTC THS at least or list all hashing power that you have BTC, DASH, BCH....

It's nicer to look at for an overall view than the individual pages.
5431  Bitcoin / Bitcoin Technical Support / Re: How can I increase the appeal of my node? on: July 09, 2019, 06:43:16 PM
Conversions are always confusing. It's rare you can say a small b is something and a big B is something else.

I normally end up just writing works as there's: gigabytes, gibibytes, gigabits and gibibits and there's enough confusion between everyone as to what each of them is.

1Gigabyte is normally 1024 mb
1gibibyte is 10^9

And youve said what the bit ones are...
5432  Bitcoin / Bitcoin Technical Support / Re: How can I increase the appeal of my node? on: July 09, 2019, 06:21:50 PM
It says data 3.0Gb/s on the drive... Maybe they screwed up the lettering or something?

https://i.imgur.com/qsNyVBb.jpg

I need access to jets image sharing site Grin.
5433  Bitcoin / Bitcoin Technical Support / Re: How can I increase the appeal of my node? on: July 09, 2019, 05:56:09 PM
How fast can ssds go? My hard drive (from a decade ago) has a speed of 6gbs and they're much better at storing data than ssds as they don't have the 10000 write limit...

Speaking of ram, it's actually possible to store the blockchain on ram if you get enough of it. A terabyte ssd is probably about the same price I can get a high speed terabyte of ram for (from what I can remember, 4x1024gb ram sticks cost about £1100).



You could look into doing raids with the drives also, but you'd need a few free sata/pci/pci-e spaces free...
5434  Alternate cryptocurrencies / Altcoin Discussion / Did the icos for tokenised real estate go anywhere on: July 09, 2019, 02:46:31 PM
I remember seeing a sig campaign on here for a tokenised real estate system and I was wondering what happened to any of them.

To me, investing in a lot of schemes relating to real estate that you don't actively manage yourself seems a bad idea. I see a lot of people looking for property investments in hotel rooms, London properties and other stuff and they all seem quite shady (although returns of 2-5% on an investment thst is a bit risky is very low anyway)...

I'm wondering if any of these tokens have actually seen any success and you can actually buy/sell an estate on the blockchain?
5435  Other / Off-topic / Re: Recovering 2fa keys from Google auth on: July 09, 2019, 02:05:36 PM
I'll take a look at pulling the data out of it. I can keep track of a phone more than I can keep track of papers so writing down the keys will just mean they'll end up in "the pile"...

I don't have any money on anything requiring 2fa and you can normally sign deposit addresses anyway... But thanks for the help so far, I'm assuming there won't be much encryption in the dB in the early versions anyway...
5436  Bitcoin / Electrum / Re: $160 fee to send $10? on: July 09, 2019, 02:02:56 PM
Drag that slider all the way to the left and repost the fee.

If it's still high you can go to preferences and click to edit fees manually.
5437  Bitcoin / Bitcoin Technical Support / Re: How can I increase the appeal of my node? on: July 08, 2019, 09:10:20 PM
Yeah the ping/bandwidth might not be too much of a problem then...

Im running bitcoin core on Ubuntu. I'm hoping to switch it out for a light version of debian as I don't like Ubuntu (I wanted to use alpine but it requires a docker)...

I don't think the USB enclosure thing will work (I have an adapter I don't mind shipping though somewhere for 2.5" drives). External drives don't work as well as internal ones unless you can use something fast. Maybe getting a nas drive and plugging it into your computers Internet (if that's possible) or running core off the drive... Motherboard computers might also be helpful if you think you're unlikely to snap the many capacitors and spikes off accidentally.
5438  Other / Off-topic / Recovering 2fa keys from Google auth on: July 08, 2019, 08:42:09 PM
I'm wondering if there's a way to get a key out of my old phone. The time on the phone is right but the one time password won't work. Does anyone know of a way to get the keys out?

It's in the Google authenticator app on jellybean 4.1.1 I think...
5439  Economy / Service Announcements / Re: [ANN] ChipMixer.com - Bitcoin mixer / Bitcoin tumbler - mixing reinvented on: July 08, 2019, 12:38:18 PM
Transparacy?

Clearly ChipMixer don't want to keep all of their funds online and set a certain amount that they can afford to lose on their online servers. This is the trend for most companies and means if a vulnerability is spotted, they don't just go bust...
5440  Other / Meta / Re: The new (maybe not so new) spammy trend. on: July 07, 2019, 09:09:01 PM
I try not to post on threads where to u know your post will be lost. If there's about 4 pages and the op hasn't posted past the first page then they've given up on those threads or didn't want them anyway...

I'd suggest we change forum rules slightly or get an agreement between mods that they'll start to lock threads that have 20 responses that have turned spammy...
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