A Computer Glitch Let a Trader Claim $20 Trillion in Free Bitcoin

An error in the price calculation system at Japanese cryptocurrency exchange Zaif has allowed some customers to claim digital tokens for free—including one who “purchased” $ 20 trillion worth of Bitcoin. That's problematic on a number of levels, but among those is the fact that the total Bitcoin market …
Google Alert – bitcoin

I spent 3 months building one of the best apps to track cryptocurrencies. Exchanges API sync, wallet tracking and many other features. I am not 16 but I invested a lot of time into this, can I get some attention anyway or am I going to get randomly downvoted as always? The app is also free.

I spent 3 months building one of the best apps to track cryptocurrencies. Exchanges API sync, wallet tracking and many other features. I am not 16 but I invested a lot of time into this, can I get some attention anyway or am I going to get randomly downvoted as always? The app is also free. submitted by /u/lriccardo
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Bitcoin – The Currency of the Internet

PSA: You can and should move your coins off of Coinbase for free via GDAX

If you have any coin on Coinbase and you are not planning to sell it in the near future, it is highly recommended you move it offline to your own wallet. If you don’t own a wallet, look at the Ledger Nano S or Trezor, they aren’t free but their price is cheap for the security and peace of mind.

Once you have a hardware wallet or a means of holding your own keys, open an account at GDAX. It’s owned by Coinbase and the application process is exactly the same. When your account is verified, transfer your Coinbase to GDAX using GDAX’s interface. From GDAX you can transfer them to your wallet’s address for free.

I used to keep my coins on Coinbase primarily to see day-to-day account balances, but there are plenty of free apps that can do the same thing. I now use Blockfolio.

submitted by /u/Putnam14
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Bitcoin – The Currency of the Internet

Sixty free lectures from Princeton on bitcoin and cryptocurrencies. Total time 13hr 20min. Links in post.

This video series is available with a community and some assignments on Coursera. For extra creddit the professors wrote a book to go with the course. Free pre-release pdf, Amazon hardcover and digital, as well as Chinese, and Japanese translations.

Enjoy 🙂

Intro to Crypto and Cryptocurrencies

1.0 Welcome – 2 mins
1.1 Cryptographic Hash Functions – 18 mins
1.2 Hash Pointers and Data Structures – 8 mins
1.3 Digital Signatures – 9 mins
1.4 Public Keys as Identities – 5 mins
1.5 A Simple Cryptocurrency – 14 mins

How Bitcoin Achieves Decentralization

2.1 Centralization vs. Decentralization – 4 mins
2.2 Distributed Conesensus – 13 mins
2.3 Consensus Without Identity: the Blockchain – 17 mins
2.4 Incentives and Proof of Work – 19 mins
2.5 Putting It All Together – 18 mins

Mechanics of Bitcoin

3.1 Bitcoin Transactions – 11 mins
3.2 Bitcoin Scripts – 15 mins
3.3 Applications of Bitcoin Scripts – 14 mins
3.4 Bitcoin Blocks – 5 mins
3.5 The Bitcoin Network – 18 mins
3.6 Limitations & Improvements – 11 mins

How to Store and Use Bitcoin

4.1 How to Store and Use Bitcoins – 6 mins
4.2 Hot and Cold Storage – 13 mins
4.3 Splitting and Sharing Keys – 11 mins
4.4 Online Wallets and Exchanges – 19 mins
4.5 Payment Services – 8 mins
4.6 Transaction Fees – 5 mins
4.7 Currency Exchange Markets – 16 mins

Bitcoin Mining

5.1 The Task of Bitcoin Miners – 10 mins
5.2 Mining Hardware – 23 mins
5.3 Energy Consumption & Ecology – 14 mins
5.4 Mining Pools – 14 mins
5.5 Mining Incentives and Strategies – 23 mins

Bitcoin and Anonymity

6.1 Anonymity Basics – 26 mins
6.2 How to De-anonymize Bitcoin – 18 mins
6.3 Mixing – 21 mins
6.4 Decentralized Mixing – 14 mins
6.5 Zerocoin and Zerocash – 19 mins
6.6 Tor and the Silk Road – 11 mins

Community, Politics, and Regulation

7.1 Consensus in Bitcoin – 6 mins
7.2 Bitcoin Core Software – 10 mins
7.3 Stakeholders: Who's in Charge – 9 mins
7.4 Roots of Bitcoin – 9 mins
7.5 Governments Notice Bitcoin – 9 mins
7.6 Anti Money-Laundering – 5 mins
7.7 Regulation – 11 mins
7.8 New York's BitLicense Proposal – 10 mins

Alternative Mining Puzzles

8.1 Essential Puzzle Requirements – 5 mins
8.2 ASIC Resistant Puzzles – 13 mins
8.3 Proof-of-useful-work – 9 mins
8.4 Nonoutsourceable Puzzles – 7
8.5 Proof-of-Stake "Virtual Mining" – 8 mins

Bitcoin as a Platform

9.1 Bitcoin as an Append-Only Log – 16 mins
9.2 Bitcoin as Smart Property – 16 mins
9.3 Secure Multi-Party Lotteries in Bitcoin – 10 mins
9.4 Bitcoin as Randomness Source – 18 mins
9.5 Prediction Markets & Real-World Data Feeds – 23 mins

Altcoins and the Cryptocurrency Ecosystem

10.1 Short History of Altcoins – 21 mins
10.2 Interaction Between Bitcoin and Altcoins – 15 mins
10.3 Lifecycle of an Altcoin – 15 mins
10.4 Bitcoin-Backed Altcoins, "Side Chains" – 11 mins

The Fututre of Bitcoin?

11.1 The Blockchain as a Vehicle for Decentralization – 14 mins
11.2 Routes to Blockchain Integration – 28 mins
11.3 What Can We Decentralize? – 24 mins
11.4 When is Decentralization a Good Idea? – 16 mins

submitted by /u/ccjunkiemonkey
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Bitcoin – The Currency of the Internet

How to transfer Bitcoin from Coinbase for free!

I see many people are upset about Coinbase and their insane transfer fees so I thought I would make a simple instruction about how to transfer Bitcoin outta Coinbase for free. Lets get to it!

  1. Go to GDAX.com and log in with your Coinbase account. GDAX is owned by Coinbase, and it’s their platform for more technical people.

  2. After you logged in, verify your account if necessary.

  3. Press the “deposit” button and then deposit your Bitcoin from your Coinbase wallet. It’s free and takes only seconds.

  4. Press the “withdraw” button, then open the “BTC address” tab and put the address you wish to send your bitcoins to in there.

That’s it! You have sent your bitcoins to another address and avoided some serious fees.

Please upvote if you found this useful so more people can see it. 🙂

submitted by /u/agent9747
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Bitcoin – The Currency of the Internet