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1  Bitcoin / Bitcoin Discussion / 002 The Flipside Bitcoin News - Moolah Bankruptcy, Robocoin PR Disaster, Dorian on: October 17, 2014, 04:37:50 AM
The Flipside Bitcoin News

I'm all ears for critique and suggested improvements to the show.

https://www.youtube.com/watch?v=1YCboWPVI24

Episode 02:

The Rise and Rise of Bitcoin is finally released, reaching #1 on iTunes for documentaries.

Dorian Nakamoto Sues Newsweek.

Jamie Dimon, chairman and CEO of JPMorgan Chase says Bitcoin developers "are going to try and eat our lunch".

In an odd headline, Simon Rockman of The Register makes fun of Richard Branson's beard, investor in Blockchain.

Moolah goes bankrupt or does it? CEO Alex Green resigns, or does he? Who is Alex Green?

Robocoin suffers a PR Disaster with Reddit giving the CEO Jordan Kelley a flogging.

Super Nintendo Benjamin Lawsky spoke about amendments to the current bitlicense proposal saying software development and mining will be exempt.
2  Bitcoin / Bitcoin Discussion / Re: Bitcoin shows on YouTube. Enough or need more? on: October 12, 2014, 11:31:33 AM

There was definite well thought out jokes, i definitely laughed at some points, if i was to offer critique i would suggest make it very quick and punchy (it was but make it even harder/faster hitting) take out non essential sentences, gaps and maybe quick "flip" the screen between topics - 1 time i wasnt sure we'd moved onto next news head line.

Great advice. Thanks very much!
3  Bitcoin / Bitcoin Discussion / Re: Bitcoin shows on YouTube. Enough or need more? on: October 12, 2014, 09:47:19 AM
I wish there was more interesting stuff, everything I've seen was rather dry.

I'm taking the comical approach to the news, pioneered by MadBitcoins. Although, my stuff is a joke wrapped around a grain of truth. **I just hope it's funny**
4  Bitcoin / Bitcoin Discussion / Re: Bitcoin shows on YouTube. Enough or need more? on: October 12, 2014, 08:38:54 AM

Not enough bitcoin vids on youtube, many more should be making the odd vid its a great way to spread the word.

I saw the flipside episode btw, pretty decent good job

Thanks! Appreciate it. Another one coming end of the week.
5  Bitcoin / Bitcoin Discussion / Bitcoin shows on YouTube. Enough or need more? on: October 12, 2014, 06:45:55 AM
Keen to hear what bitcoiners think about shows on Youtube. Need more or are there too many already? I never miss The Bitcoin Group which discusses news of the week. Any recommendations?
I put together the first episode of my own satirical Bitcoin news show called The Flipside.

https://www.youtube.com/watch?v=bK32GUoXkd0
001 The Flipside Bitcoin News - Andreas Talks To Canada, FTC slaps ButterflyLabs, Bear-Whales

Feedback welcome.
6  Bitcoin / Bitcoin Discussion / Re: satoshin@gmx.com is compromised on: September 09, 2014, 01:09:22 AM
From Peter Todd:
https://twitter.com/petertoddbtc/status/509145414008725504

Interesting, got another forwarded email from "satoshi", from 2011 - indicates this was a hijacked account, not expired and re-registered.
7  Bitcoin / Development & Technical Discussion / Re: Time to wait for 99% surety of no double spend, accounting for pool hashrate % on: June 26, 2014, 11:37:31 PM
Mike Hearn was saying recently that ONLY Gavin was working on protocol stuff, mostly focusing on floating fees.
If Mike actually said that he's confused (and heck, floating fees isn't even a protocol thing— it's wallet behavior).

Quote
GHash have proven there is a valid business model that other pools can adopt and erode GHash's share. *fingers crossed*
And what business model do you think they have?

Hi Greg,
I certainly dont want to put words in Mike's mouth. That was the impression I got from a recent interview : http://zz.reddit.com/r/Bitcoin/comments/28zts3/mike_hearn_interview_quotes_progress_on_the/

I have no opinion on CEX / GHash business model, but to gain such a majority of the network, they have done *something* to convince a large chunk of mining investment to use their operations.
8  Bitcoin / Development & Technical Discussion / Re: Time to wait for 99% surety of no double spend, accounting for pool hashrate % on: June 26, 2014, 12:18:34 PM
Mike Hearn was saying recently that ONLY Gavin was working on protocol stuff, mostly focusing on floating fees. Any major changes to the core protocol will happen very slowly if that's the case.

There's only a dozen major pools. Would be nice to have 50+ pools where one does not exceed 10% share in order to avoid a protocol-based solution. Seems a far way off, unfortunately.

GHash have proven there is a valid business model that other pools can adopt and erode GHash's share. *fingers crossed*
9  Bitcoin / Development & Technical Discussion / Re: Time to wait for 99% surety of no double spend, accounting for pool hashrate % on: June 26, 2014, 04:01:41 AM
I've started already! https://bitwasp.co/block_hashrate.php

So basically, I'm doing as I described above.. Get pools % hashrate, determine based on their hashrate how many blocks deep a transaction must be so that pool to have less than 1% probability of producing a greater difficulty chain..


code's here if that's any use to you, PHP: https://gist.github.com/afk11/bbd9657b91e9a68d054f

Absolutely brilliant! You've saved me a fair amount of head scratching!

Interesting (disappointing?) to see that 5.3 hours is the wait time due to Ghash.
10  Bitcoin / Development & Technical Discussion / Re: Time to wait for 99% surety of no double spend, accounting for pool hashrate % on: June 26, 2014, 02:31:42 AM
Time is irrelevant.

For User Interface design, time is the only value displayed. Users dont care for nor understand confirmations, but I get your point. Estimating **if** a transaction will be accepted into the next block is part of the challenge.

The timestamp in blocks can be interfered with, so what happens if someone puts a block 20m forward in time? Would this cause your app to trust all transactions for the next 10 minutes? As DeathByTaxes said, confirmations are where it counts. Satoshi's whitepaper has C++ code to determine the % likelyhood of an attacker being able to orphan a transaction with n confirmations by producing a chain with greater difficulty than the present one.. You need to wait 3 confirmations for ~99% certainty the chain wont be orphaned (if the attacker controls 10% of the hashrate - 15 confirmations if they control 30!)

So this could be exactly what you need Smiley Given a hashrate that you get from blockchain, continue calculating the percentage likelyhood an attacker can orphan a transaction X blocks deep, and stop when your probability is 0.01 - X is now the number of confirmations needed or 99% certainty.

Multiply this by the current average block time (from blockchain) and you have your answer.


Thanks, I'll give it a whirl.
11  Bitcoin / Development & Technical Discussion / Time to wait for 99% surety of no double spend, accounting for pool hashrate % on: June 26, 2014, 12:30:50 AM
I need some maths whiz help. I'm trying to work out the time required to wait for 99% surety of no double spend, based on the current block time and an estimate of mining pool hashrate %.


eg, if DingBatPool has X% of the network hashrate and the block time is Y minutes, you should wait Z minutes to be 99% certain there is no double spend.

[for now, let's ignore that Pool1, Pool2, etc could be colluding]

Data from:
https://blockchain.info/q/interval [Block time]
https://blockchain.info/pools?timespan=4hrs [inaccurate, but sufficient pool hashrate %]


What would be the formula to get Z = the time required to wait?
12  Economy / Speculation / Re: BTC hits 5,000 in 2014 on: January 07, 2014, 01:34:55 PM
Quote from: chuckscap link=topic=403474.msg4365202#msg4365202
3. Mining difficulty will increase, but unlike in the past year,  ASIC technology will not keep up with the demand for new bitcoins.   The new THs miners when they finally appear in late spring will be lucky to generate .5 BTC/day after a few months.   I think the mining technology curve is flattening out which will only slow the increase of supply which will in turn drive bitcoin prices up.


Slow the increase of supply? I think you need to do a bit more research into how bitcoin works before i can take your predictive capabilities seriously, even though i agree with $5k and beyond.
13  Bitcoin / Bitcoin Discussion / Re: Contest to name the 0.0001 BTC unit (0.1 BTC prize!) on: January 03, 2014, 03:06:59 AM
Why 0.0001 BTC should be called "a bitmar".

Firstly, some currencies use the -ar suffix, such as the dollar and dinar.

Secondly, to distinguish Bitcoins from other digital or fiat currencies, the term "bit" should be used in the unit name.

0.00000001 is one satoshi
0.001 is a millibit
0.00001 is a megasatoshi

In between milli and mega we have our 0.0001 value, so I'll use the 'm' to form -mar

Usage.

*Excuse me, how many bitmars for a coffee?
Point 3 bitmars

*I pay 300 bitmars per month for web hosting.

*I'll give you 50,000 bitmars for your car.
14  Bitcoin / Bitcoin Discussion / Re: The Investor & the Miner, and even the Businessman are ALL Gamblers on: November 05, 2013, 08:51:16 AM
You sound bitter. In what way have you been burnt?
15  Economy / Securities / Re: [ActiveMining] The Official Active Mining Discussion Thread [Self-Moderated] on: November 05, 2013, 12:36:50 AM
Bitfunder closing down should not surprise anyone. The writing was on the wall and the market list has shrunk significantly. Most securities and investors have already jumped ship.
Havelock will be next.

Anyone who sent their personal documents to Bitfunder have cause for concern.
16  Bitcoin / Bitcoin Discussion / Re: Global "Happy birthday bitcoin" Day on: October 28, 2013, 10:04:56 AM
I think its a nice idea if people could organise local events however bitcoins birthday is right after new years so people could already be partied out.
It would be better to co-opt new years.

Trying to get some video shoutouts for bitcoins birthday here:
http://www.happybirthdaybitcoin.com
17  Economy / Securities / Re: [ActiveMining] The Official Active Mining Discussion Thread [Self-Moderated] on: October 28, 2013, 04:37:13 AM
Transfer complete. Feeling a bit nervous about it.

My transfer from AMC to ActiveMining went smoothly, so I don't doubt Ken's ability to sort out shares.

I think hes talking about the fact that shares are being sent back to the company and that theres a chance that the company could just take off with them...I have this same concern and I havent sent shares for the same reason (although I trust ken to follow through on his promise)

That's correct. I have several thousand shares so Im nervous that
1) I transferred correctly
2) Ken will be able to verify them as mine
3) The pissy value of the shares will recover to their former glory
4) We can get some *actual* mining happening paying dividends

Transfer complete. Feeling a bit nervous about it.

Don't be nervous sweetie, it's monopoly money

Monopoly money I can handle. Being called "sweetie" by VE? Now I should be worried!  Tongue
18  Economy / Securities / Re: [ActiveMining] The Official Active Mining Discussion Thread [Self-Moderated] on: October 27, 2013, 10:55:44 PM
Transfer complete. Feeling a bit nervous about it.
19  Economy / Securities / Re: [ActiveMining] The Official Active Mining Discussion Thread [Self-Moderated] on: October 24, 2013, 11:49:07 PM

Klondikes have been shipped, should be hashing in about 5 days.

Hooray!  Cheesy
20  Economy / Securities / Re: [ActiveMining] The Official Active Mining Discussion Thread [Self-Moderated] on: October 24, 2013, 02:20:52 AM
Important Notice (October 23th, 2013):

Please be advised that ActiveMining is implementing the following rules and procedures for Investors wanting to keep their shares:

Investors who fail for any reason to provide the information necessary to obtain "Verified" status on Bitfunder are encouraged to transfer their shares on BitFunder to the Bitfunder user AMC-TENDER no later than November 6, 2013 before dividends are paid.  All Investors transferring their shares to this account will continue to accumulated dividends on their shares.  

The October 30th dividends will be suspended and accumulated for payment on November 6, 2013.  

and then?

how will you know who sent you the shares, and keep dividends etc

We will be using the Bitfunder transaction logs and asset list from Bitfunder.  Investors will need to be able to sign the Bitcoin address in their Bitfunder account at a later date.  


People who have not enabled 2-factor authentication will not be able to transfer. Can someone give a step-by-step for doing this, detailing the Google side and Bitfunder side?

EDIT: The easiest method is with a smartphone. Download the Google Authenticator app and scan the barcode you'll find in Bitfunder > {username} > Security
The app will display a code that you can enter into bitfunder. Make sure you write down the bitfunder KEY.

(sorry if this was obvious for some people, but Bitfunder gives no explanation at all)
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