Bitcoin News Feeds Today

http://bitcoin.gw.gd
«  February 2017  »
Mon. Tue. Wed. Thu. Fri. Sat. Sun.
30 31 1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 1 2 3 4 5
retour à la date courante

Today 373 news :


  • Should I Open a Bitcoin IRA?, 10 February 2017

    Friday 10 February 2017 :: Google News Alerts - bitcoin :: RSS
    The rising price of Bitcoin over the past two years – 123% last year and ... And yet many investors aren't aware they can open a Bitcoin IRA right now if ... Read more
  • Re: Qt Bitcoin Trader [Open Source secure trading client for Mac/Windows/Linux], 10 February 2017

    Friday 10 February 2017 :: Bitcoin Forum - Project Development :: RSS
    Hello Ighor,

    you know that i am a long time user for about 3 years now.
    And after the last 2 Updates buy and sell rules seem to not to work propperly. I have really lost money. My stop loss did not work.
    because of that ne bug.
    I have the feeling that ... Read more
  • Will there be 21 million bitcoins eventually?, par erikvold, 10 February 2017

    Friday 10 February 2017 :: Bitcoin questions on Stack Exchange :: RSS
    Every x blocks the mining reward is halved. Will the reward be halved forever such that we never quite reach 21 million bitcoins, or will we reach 21 million bitcoins at some point and will the reward cease to exist altogether? Extra points for pointing to the relevant (...) Read more erikvold
  • Zero Knowledge Proofs & Bitcoin: The Tech Behind the Brave Browser, 10 February 2017

    Friday 10 February 2017 :: Google News Alerts - bitcoin :: RSS
    The startup, which is still in beta, strives to do this using Zero-knowledge proofs, methods by which bitcoin microtransactions can be made and ... Read more
  • China's Biggest Exchanges Stop Bitcoin Withdrawals After Crackdown, 10 February 2017

    Friday 10 February 2017 :: Google News Alerts - bitcoin :: RSS
    Chinese exchanges suspend withdrawals of virtual currency while the country's central bank increases pressure on bitcoin companies to stem capital ... Read more
  • Better Bitcoin Privacy, Scalability: Developers Making TumbleBit a Reality, par /u/cucubabba, 10 February 2017

    Friday 10 February 2017 :: Bitcoin on reddit :: RSS
    submitted by /u/cucubabba
    [link] [comments] Read more /u/cucubabba
  • Dedup nTimeFirstKey update logic, par ryanofsky, 10 February 2017

    Friday 10 February 2017 :: Commits - bitcoin:master :: RSS
    Dedup nTimeFirstKey update logic Also make nTimeFirstKey member variable private. This is just a cleanup change, it doesn't change behavior in any significant way. Read more ryanofsky
  • Require timestamps for importmulti keys, par ryanofsky, 10 February 2017

    Friday 10 February 2017 :: Commits - bitcoin:master :: RSS
    Require timestamps for importmulti keys Additionally, accept a "now" timestamp, to allow avoiding rescans for keys which are known never to have been used. Note that the behavior when "now" is specified is slightly different than the previous behavior when no timestamp was specified at all. (...) Read more ryanofsky
  • Add test to check new importmulti "now" value, par ryanofsky, 10 February 2017

    Friday 10 February 2017 :: Commits - bitcoin:master :: RSS
    Add test to check new importmulti "now" value Easiest way to test this was to expose the timestamp via the validateaddress RPC (which was already looking up and returning key metadata). Read more ryanofsky
  • Use MTP for importmulti "now" timestamps, par ryanofsky, 10 February 2017

    Friday 10 February 2017 :: Commits - bitcoin:master :: RSS
    Use MTP for importmulti "now" timestamps Read more ryanofsky
  • What's the Difference Between Blockchains, Cryptocurrency, Audit Trails, and Databases?, 10 February 2017

    Friday 10 February 2017 :: Google News Alerts - bitcoin :: RSS
    Most will know blockchains from BitCoin, one of the many cryptocurrencies based on them. But cryptocurrencies are only one use for blockchains. Read more
  • Coinbase Down, par /u/thebitcoinbastard, 10 February 2017

    Friday 10 February 2017 :: Bitcoin on reddit :: RSS
    Coinbase Down submitted by /u/thebitcoinbastard
    [link] [comments]
    Read more /u/thebitcoinbastard
  • How accessible is Bitcoin to blind people?, par Tom Au, 10 February 2017

    Friday 10 February 2017 :: Bitcoin questions on Stack Exchange :: RSS
    Is it easy or hard for blind people to trade bitcoin if they have the appropriate assistive technology? It is easy or hard for blind people to work at tasks involving bitcoin such as utilizing computers for mining, or confirming transactions on the blockchain? What kinds of technologies would (...) Read more Tom Au
  • Report: Funding for Bitcoin, Blockchain Startups Grows to $550 Million in 2016, 10 February 2017

    Friday 10 February 2017 :: Google News Alerts - bitcoin :: RSS
    A new report from CB Insights has shown that funding investments in bitcoin and blockchain technology startups amounted to $550 million compared ... Read more
  • It's possible to spend a BTC without fee to forge a payment?, par Davi Cesar, 10 February 2017

    Friday 10 February 2017 :: Bitcoin questions on Stack Exchange :: RSS
    I would like to know if it is possible to make a transaction without fee (probably this transaction will never be confirmed) and some time later to take this money back and spend in another transaction? If yes, can I protect myself against this fake payment? While the transaction is waiting a (...) Read more Davi Cesar
  • Re: Obtaining a HOME MORTGAGE with Bitcoin Users, 10 February 2017

    Friday 10 February 2017 :: Bitcoin Forum - Project Development :: RSS
    Look at it from this aspect, someone is trying to sell you a car and he/she doesn’t know or doesn’t address all the functions or specs of the car. They just want to sell you this car without knowing its full potential.

    Then someone else comes around an... Read more
  • Re: [ANN] FACTOM - Introducing Honesty to Record-Keeping , 10 February 2017

    Friday 10 February 2017 :: Bitcoin Forum - Project Development :: RSS
    Exodus beta starts today, Factom is alive on Shapeshift. Read more
  • Capital Controls and Ponzi Schemes: How Nigeria Is Discovering Bitcoin, par Aaron van Wirdum, 10 February 2017

    Friday 10 February 2017 :: Bitcoin Magazine :: RSS
    Capital Controls and Ponzi Schemes: How Nigeria Is Discovering Bitcoin
    The price collapse of “black gold” locked Nigerians into their economy. Now, “digital gold” is providing some Nigerians with a way out.

    Only three years ago, crude oil cost over $100 a barrel. But that peak came tumbling down. Throughout 2014 and 2015, oil prices took an almost unprecedented plunge to the $30 range, and is currently trading around $50 a barrel. As the lifeblood of Africa’s largest economy, Nigerian income from exports plunged with it.
    Faced with dwindling foreign currency reserves, Nigeria’s central bank was quick to impose capital controls. Whole industries were banned from importing goods; the Nigerian president wanted businesses to buy their products from domestic suppliers. Instead, this policy led to widespread shortages of raw materials, machine parts and supermarket products. Additionally, foreign currency–denominated Nigerian bank cards had strict spending limits imposed, preventing Nigerians from shopping abroad or paying overseas school fees.
    Nigeria initially refused to devalue its currency, the naira (NGN), which was pegged to the U.S. dollar. However, that led to black market rates for U.S. dollars, increasing to levels almost double that of the official figures. As of June 2016, the naira exchange rate was finally allowed to float. As a result, the national currency fell by about 40 over the last year, according to official figures.
    Perhaps unsurprisingly, Bitcoin is gaining ground.
    Tim Akinbo is a 35-year-old software developer and Bitcoin enthusiast from Nigeria, and the only person in West Africa running a full node.
    “There’s been quite some interest in bitcoin use in Nigeria recently,” he told Bitcoin Magazine. “It’s definitely growing. The devaluation of the national currency is an obvious reason, as bitcoin serves as a hedge in that respect. But companies have also started to use bitcoin for imports. Either through companies like BitPesa, or individually. And Nigerians in the diaspora also increasingly use bitcoin to send money to their family and friends at home.”
    This observation is perhaps best reflected in the increase in Nigerian trading volume on LocalBitcoins.com. This has regularly topped 400 million NGN ($1.2 million) per week, more than the entire eurozone combined. Moreover, the bitcoin exchange rate even reached some 500,000 NGN ($1,600) on Nigerian exchanges recently; similar premiums were previously seen in other countries faced with capital controls or monetary woes, like China and India.
    Other figures show similar trends. Of all countries, Nigeria tops the Google trend charts for most “Bitcoin” searches. Asked by Bitcoin Magazine, several wallet providers — including Mycelium, Bitcoin Wallet, Breadwallet and BTC.com — reported significant relative growth in downloads from the African country: new installs in some cases increased around 2000% since October. And as another indicator of success, Africa-focused Bitcoin startup BitPesa secured a $2.5 million funding round from leading venture capital firms only last week.
    Alejandro De La Torre is the business development manager for Bitcoin wallet provider BTC.com, and speaking to Bitcoin Magazine he confirmed this sentiment.
    “Wallet downloads from Nigeria were only topped by the United States and India. For a developing country that’s not known to be very tech savvy, with relative high illiteracy, and that has less inhabitants than countries like China, Indonesia or Brazil, that had us very surprised,” De La Torre told Bitcoin Magazine. “We’re now in the process of setting up a meetup in Lagos, which already has 130 members signed up in three weeks. I think Bitcoin interest in Nigeria is growing exponentially.”
    The MMM Ponzi Scheme
    Though, it seems there’s also a significantly more depressing explanation for the Bitcoin surge.
    Unfortunately, a largely illiterate populace hit with an economic downturn proved a fertile breeding ground for large-scale Ponzi schemes. The most famous of these, MMM, swept through several African countries over the past couple of years, including South Africa, Zimbabwe and — indeed — Nigeria. Similar, perhaps even bigger schemes, have been “successful” in Nigeria, too.
    “People were promised incredible returns on their investment if they’d put their money in these pyramid schemes,” Akinbo said. “And a couple months ago, some of these schemes introduced the option to fund and receive payments with bitcoin. Unfortunately — or fortunately depending on how you see it — a number of these schemes went bust toward the end of the year. A lot of people lost money in these schemes, and the few Ponzis that survived aren’t doing so well.”
    Perhaps unsurprisingly, financial regulators in Nigeria have started to take note as well. In a letter from the Nigerian central bank, addressed at financial institutions and virtual currency operations, bitcoin is listed in one breath with MLM scheme OneCoin. The central bank warned it may “address the Money Laundering / Terrorism Financing (ML/TF) risks associated with [digital currency] exchanges,” in order to “protect the integrity of the Nigerian financial system.”
    Regardless, Akinbo remains optimistic.
    “While these Ponzi schemes were bad news, they did expose many Nigerians to bitcoin for the first time. Bitcoin took a slight dip in trading volume and price but surprisingly continued to trade even after the demise of a number of the major schemes. I think we will see these Ponzi schemes disappear over time, while bitcoin might just stick around …”
    The post Capital Controls and Ponzi Schemes: How Nigeria Is Discovering Bitcoin appeared first on Bitcoin Magazine. Read more Aaron van Wirdum
  • ITellio introduces ATM cash forecasting, 10 February 2017

    Friday 10 February 2017 :: Finextra Research Online banking channel :: RSS
    ITellio, the cloud-based, ATM management platform that allows independent ATM deployers to monitor a... Read more
  • Better Bitcoin Privacy, Scalability: Developers Making TumbleBit a Reality, par Aaron van Wirdum, 10 February 2017

    Friday 10 February 2017 :: Bitcoin Magazine :: RSS
    These Developers are Making TumbleBit a Reality
    TumbleBit is probably one of the most promising technological advancements built on top of Bitcoin to date. Not only does it offer one of the best — if not the best — privacy related innovations so far, it can also provide significant scaling benefits as a payment hub. The solution is also fully compatible with the current Bitcoin protocol and, most important, it is in an advanced stage of development.

    “The prospect is good that before summer we will have software that regular users can safely use,” one of TumbleBit’s inventors, Ethan Heilman, told Bitcoin Magazine.
    NTumbleBit
    TumbleBit has made a good deal of progress in little time. The idea was first proposed last summer by Heilman, Leen AlShenibr, Foteini Baldimtsi, Alessandra Scafuro and Sharon Goldberg. The group of university researchers also coded up a proof of concept and even made successful test transactions on Bitcoin’s blockchain. Shortly after, in September, Heilman and AlShenibr presented their proposal at Scaling Bitcoin Milan, where it was very well received: enthusiasts even made two different trailers celebrating the innovation.
    Inspired by its potential, author of the book “Programming The Blockchain in C#” and NBitcoin developer Nicolas Dorier started working on his own implementation of TumbleBit in the C# programming language, called NTumbleBit.
    “His work is very impressive, so we decided to move over to it, and NTumbleBit is now the official TumbleBit implementation,” Heilman explained. “Much progress has been made over the past months, and we are now working to ensure that the software is as secure as it can be, and as tested as it can be. We are also building the operational tools necessary for it to be deployed in production.”
    TumbleBit merges several cryptographic tricks to allow for a completely trustless coin mixing service. In “Classic Tumbler mode,” all users connect through a central TumbleBit server and send coins to one another in such a way that everyone receives as much as they sent. Using a series of clever cryptographic tricks, this is done so no one can steal coins and no one knows who’s sending bitcoins to whom, not even the central server. Hundreds of users can participate at the same time, thereby obfuscating blockchain trails and, in turn, vastly improving Bitcoin privacy for everyone involved.
    Speaking to Bitcoin Magazine, Dorier explained how this is done with his NTumbleBit implementation.
    “Users will need to use a Bitcoin Core full node as a wallet; pruning mode is fine, so they don’t need to store the entire blockchain,” he said. “Then, the NTumbleBit client slowly drains all the coins from the wallet, and connects to the NTumbleBit server to mix them. Completely different coins are returned to the user, preferably to an HD public key for light wallets, though the Bitcoin Core wallet is an option too. The whole process can take a couple of hours depending on the amount to mix, but then everyone will have a completely different batch of coins.”
    Dorier completed a first iteration of the NBitcoin software and has stepped back from active development.
    Usability
    Now, others are picking up where Dorier left off.
    As an important next step, the co-author of Dorier’s C# Bitcoin book, Ficsór Ádám, traveled to Tokyo — where Dorier lives — to help with Tor integration.
    Anonymizing through Tor may be needed to ensure that the NTumbleBit server can operate as a hidden service. Not all regulators will be very happy with the existence of such a coin mixing tool, and it is possible TumbleBit server operators may encounter trouble when providing the service. (This is also one of the reasons Dorier hasn’t tested the implementation on main net himself, and is instead sticking to testnet.)
    But Tor integration is also very much required for TumbleBit to work as advertised, at least in Classic Tumbler mode, Ádám explained.
    “In Classic Tumbler mode, everyone is effectively sending bitcoins to themselves,” he said. “Everyone receives new bitcoins, so it breaks the blockchain links. But if everyone communicates with the TumbleBit server through their own IP addresses, that server can easily re-establish the link: it can simply link the IP addresses of sending and receiving Bitcoin addresses and conclude it’s the same person. That’s solved with Tor.”
    And then, of course, TumbleBit must actually be made usable — and not only usable for command-line techies, but for regular users as well. After all, the greater the number of people who use TumbleBit, the greater the number of Bitcoin addresses that get mixed together. This increases the anonymity set and therefore benefits everyone’s privacy, including that of command-line techies.
    This step is being realized by Dan Gould. An undergraduate at Boston University, Gould is working on a graphic user interface for NTumbleBit. This user interface should make mixing coins with TumbleBit as easy as clicking a button.
    All in all, Heilman expects that the first working and usable release of NTumbleBit may be available within months.
    “It’s hard to say with certainty, but many of the pieces are in place, and there should be even more people working on NTumbleBit in March, including myself and Leen,” he said.
    Payment Hub
    Finally, TumbleBit is capable of more than just increasing privacy.
    TumbleBit in Classic Tumbler mode may be the best mixing solution for Bitcoin so far (ValueShuffle is another candidate). But in “Payment Hub mode,” a TumbleBit server can, indeed, act as a payment hub. Not unlike the lightning network, this allows users to transact with other users “off-chain” for an extended period of time. If both a customer and a merchant are connected to the TumbleBit server, for example, the customer can make a payment in bitcoin, while neither the customer nor the merchant (nor the tumbler) learn anything about each other’s Bitcoin addresses.
    “While we have no timelines yet, we are definitely building Payment Hub mode as well,” Heilman acknowledged. “But our first goal is Classic Tumbler mode; that is 95 percent of the work from a coding perspective.”
    And, as with so many of Bitcoin’s tech innovations, TumbleBit could also benefit from Segregated Witness (“SegWit”). The protocol upgrade proposed by the Bitcoin Core development team would solve Bitcoin’s long-standing malleability bug; however, adoption of the proposal currently seems uncertain.
    “SegWit is an across-the-board win for anything doing anything with payment channels,” Heilman said. “The biggest advantages are for TumbleBit in Payment Hub mode, as it would allow for more flexibility in payments and an overall smoother user experience. If SegWit happens, then some of the research I'm working on now to improve TumbleBit will happen on Bitcoin. If SegWit doesn't happen, TumbleBit will still happen exactly as we planned, but my further research will probably target Litecoin or other coins with malleability fixes.”
    For more on TumbleBit, read “With TumbleBit, Bitcoin Mixing May Have Found Its Winning Answer.”
    The post Better Bitcoin Privacy, Scalability: Developers Making TumbleBit a Reality appeared first on Bitcoin Magazine. Read more Aaron van Wirdum
  • Re: Obtaining a HOME MORTGAGE with Bitcoin Users, 10 February 2017

    Friday 10 February 2017 :: Bitcoin Forum - Project Development :: RSS
    Lots of companies can look at your income and make an exception if it's not the usual paystub and a tax return kind of job. Income is income so if it's included on a tax return it's income. I don't see how you feel your business has any competitive edg... Read more
  • cryptocurrencies [on hold], par Donald Bathe, 10 February 2017

    Friday 10 February 2017 :: Bitcoin questions on Stack Exchange :: RSS
    i was chatting online with a cryptocurrency expert and this is what he told me when i asked him as to why when hackers steal like 300 million dollars or more they usually never tend to be living in the united states or canada, ot really my area of expertise, but I will give it a shot. I cannot (...) Read more Donald Bathe
  • Peter Grandich & Chris Waltzek on GoldSeek Radio – January 9, 2017, par Stefan B., 10 February 2017

    Friday 10 February 2017 :: FSN » bitcoin :: RSS
    by Chris Waltzek GoldSeek Radio Peter Grandich of Peter Grandich and Company and host discuss one analyst’s call for a seemingly outlandish silver price... Read more Stefan B.
[1-26] [26-51] [51-76] [76-101] [101-126] [126-151] [151-176] [176-201] [201-226] [226-251] [251-276] [276-301] [301-326] [326-351] [351-376]