Hi all. It's 12:36 AM right now and I have completely forgotten about a Bitcoin project I am presenting on tomorrow. Right now I'm doing the powerpoint, but I'd like to have a short video showing my wallet. unfortunately I am still waiting for the right time to buy back in and I have 0.00 bitcoin. I am asking for a tiny amount (<0.02) - one or two satoshi would even work - just so I can create this video of me using my wallet.
Thank you so much for understanding! I will post my presentation to this forum when I am done You guys have been a great help.

My address is, 1HL8wHoMZpFUkJxzRQth3VpHehcLJie5WB

Anything is appreciated!

I have already written a twenty page thesis on it and this is just a presentation to introduce users to Bitcoin before hitting them with more technical thoughts in my thesis.

I will pay you back 100% with zero interest in less than 30 minutes.

A Bitcoin price spike will occur in April-June, 2015 and reach around $2750.

Just leaving this here.

I feel like someone should have noticed this already, but I'll post it again because I don't know what to search for to make sure there is no duplicate.



Doesn't the first little "bump" in April 13 look exactly like the large "bump" in Jan 14?
If it follows this same path which might happen we could have found a pattern here. If it follows this same path it would be wisest to buy now.

People have made computers, memory, calculators, whatever with Redstone in the game of minecraft.
Is it possible to do ripemd-160 and sha-256 and base-58 with Redstone?

This would be pretty cool.

Thanks!

I'm looking for a paragraph that explains Bitcoin in simple terms to share with my friend. I would write one myself but I am still learning a lot and I don't want to mess up any facts.

Thanks so much in advance!

I understand that most everyone here has put some money into Bitcoin, and you may not like this because of that reason, but why is the prevalent theory that Bitcoin should be worth thousands of dollars? I myself would be fine if Bitcoin was worth two dollars each, but was stable.

Thoughts?

If someone controls a couple nodes (10 for example, shouldn't be hard to do that right?), and at some point he isolates those nodes from the other bitcoin nodes, that will lead to an isolated blockchain that only he have access to it, and if he mines on it at 1kh/s or whatever super slow hash rate, at the time of recalculating the difficulty, it'll drop down by huge amount considering there wouldn't be any new blocks found between the time he isolated the chain till the time of changing the target difficulty (maybe he waits for 2 recalculating events, or modify something to make the difficulty drop to lowest possible not sure how possible that is). After this new low difficulty, he uses high mining power to create blocks at very high speed since the difficulty has dropped (on his own blockchain), meanwhile the true blockchain will have generated blocks that aren't included in those isolated chains, but due to him having low difficulty he generated twice the amount of blocks (or maybe x1.5 for example) if he then releases those nodes and they start interacting with other nodes, will this "self generated" chain become the "true" chain? I mean since it's a longer chain wouldn't it be the "true" blockchain? and that person would have actually reversed some transactions, and also generated new blocks and took the reward for himself?

I got this theory while reading an article about selfish mining, but for selfish mining to work you'll need to have something around 25% hash rate? (can't remember the exact %)

Anyway, the idea was taken from selfish mining, but I added that attacker needs to have couple nodes under his control and he isolate them in order to massively reduce the target difficulty so he can generate blocks at ridiculous high speed to make up for the time he didn't generate blocks while isolated.
also I'm not sure if 10 nodes are enough? maybe he needs something like 1/3 of total number of nodes to make sure that his blockchain will be published to everyone?

That's all, if anyone can explain if it's possible or not or if you can provide links to articles that help me finding the answer I'll be really appreciated, hope I explained my theory in an easy way.

If someone controls a couple nodes (10 for example, shouldn't be hard to do that right?), and at some point he isolates those nodes from the other bitcoin nodes, that will lead to an isolated blockchain that only he have access to it, and if he mines on it at 1kh/s or whatever super slow hash rate, at the time of recalculating the difficulty, it'll drop down by huge amount considering there wouldn't be any new blocks found between the time he isolated the chain till the time of changing the target difficulty (maybe he waits for 2 recalculating events, or modify something to make the difficulty drop to lowest possible not sure how possible that is). After this new low difficulty, he uses high mining power to create blocks at very high speed since the difficulty has dropped (on his own blockchain), meanwhile the true blockchain will have generated blocks that aren't included in those isolated chains, but due to him having low difficulty he generated twice the amount of blocks (or maybe x1.5 for example) if he then releases those nodes and they start interacting with other nodes, will this "self generated" chain become the "true" chain? I mean since it's a longer chain wouldn't it be the "true" blockchain? and that person would have actually reversed some transactions, and also generated new blocks and took the reward for himself?

I got this theory while reading an article about selfish mining, but for selfish mining to work you'll need to have something around 25% hash rate? (can't remember the exact %)

Anyway, the idea was taken from selfish mining, but I added that attacker needs to have couple nodes under his control and he isolate them in order to massively reduce the target difficulty so he can generate blocks at ridiculous high speed to make up for the time he didn't generate blocks while isolated.
also I'm not sure if 10 nodes are enough? maybe he needs something like 1/3 of total number of nodes to make sure that his blockchain will be published to everyone?

That's all, if anyone can explain if it's possible or not or if you can provide links to articles that help me finding the answer I'll be really appreciated, hope I explained my theory in an easy way.

So today I mentioned Bitcoin to my friend. He responded immediately "You shouldn't do that on the school's network, the FBI will get you. Anyway, wasn't that banished a year ago?"

How can I tell people the truth in less than a couple minutes? What should I say if I am confronted with this again? What is the easiest, fastest way to explain Bitcoin to a commoner?

I am buying PSN codes and games.
Let me know if you have any and I will see if I will buy it.
Thanks

[PLEASE VOTE FOR YOUR CHOICE. I need the answers for statistics.]

I have my own opinion on this. The thread is for statistical purposes. I am aiming to get a fairly accurate sample of what fairly educated Bitcoin users think about the currency, and I don't think there will really be any undercoverage or response bias.

PLEASE VOTE FOR YOUR CHOICE. I need the answers for statistics.

What is the factor that would speed up time for a single transaction to get a single confirmation the most? Difficulty? Number of miners? Gh/s? etc.

I don't think Bitcoin will ever be allowed in its current state by any first-world government to get very big. The reason being is that all transactions are mostly anonymous. Governments need to know the amount of money going into their country and the amount of money leaving their country. My proposal for this is to have an option (default value: true) on each transaction to get the geolocation of each IP (Country only) and put that in the txn hash.

you would be allowed to disable this option but the majority of users would be too lazy to change it and a slightly accurate amount is generated per country.

Does this make sense?

So I had this idea just 30 seconds ago while browsing the forum.

Take a small device such as Raspberry Pi, and set up a Bitcoin wallet on the Pi.
Put it inside a very small grayscale printer (prints dollar bill sized sheets, or really any size)
Have a LCD screen on the printer allowing you to select amount of BTC and also a "print" button
---For security, implement a fingerprint scanner? or if that's too much, allow for a small password to be set on the printer
When someone "logs in" with their fingerprint, and selects a BTC amount, presses print
---the Pi creates a new wallet with the bitcoin amount specified, and also creates public/private QR codes for that account
---a small sheet of paper that could fit in a physical wallet is printed. on it are two QR codes (pubkey/privkey), other details like "amount on wallet" and "date printed"

Then you could just print off several of these whenever you need to, and spend them at Bitcoin accepting institutions. JUST LIKE FIAT PAPER MONEY.

Please someone give me their thoughts on this.

I can translate English to German and vice versa, I will only be paid in Bitcoin.

Please contact me if you want to make a deal.

I'm doing a senior thesis project at school, and I'd like to find some scholarly books (not web articles) about Bitcoin/cryptocurrency in general. Are there any?
I understand Bitcoin is relatively new (only 5-6 years old, depending on if you count the idea or the actual time it was put into practice) but there SHOULD be some books out there... right?

For Bitcoin to be accepted as a reliable and convenient currency by the average consumer, it needs to become much more open to smaller transactions (such as paying for groceries, bar bills, or school supplies).

Right now I wouldn't even dream of paying with Bitcoin for anything but large transactions online.

Bitcoin will never grow into a usable currency unless this changes. It will continually be a place for speculators and investors to place money and play with the market.

Thoughts?

I thought this site was worth a share.

If you care a ton about anonymity, you probably shouldn't use this, but if you just want an easy place to store your bitcoin address and qr code so that you can make transactions easily and without fear of typos in your address, this site is a great tool. Just share your site address with the person you're trading with!

http://wantsbtc.com/

Mine: http://steve.wantsbtc.com

Any thoughts? (I'm not the admin, I just liked the idea).

I will exchange my 95 Paypal for bitcoin at preev rate.

Anyone up for this?..

I am buying $75 BTC (current preev rate as of August 9: 0.1272) for $77 PayPal. My PayPal is verified and I can send as gift. I'm just trying to get started in this Bitcoin world

My Bitcoin address is 14kzGcKQpfdvfCcVbuSxm4Nx2XZRr4mcSC

We can use a middleman if you'd like.

Thank you! Add my Skype if interested: ninekv

Hopefully I can get started in this new world! I am looking to have some fun and learn some lessons!