Blockchain, a trustless and distributed consensus system, allows you to send and/or receive money from someone without turning to third-party services. By creating a distributed network of ledgers that work together to keep all transactions, contracts and accounts public, they eliminate the need for mediation to large extent via a concept named as Proof of work. Proof of work is a requirement to define an expensive computer calculation, also called mining, that needs to be performed in order to create a new group of trustless transactions (the so-called block) on a distributed ledger called blockchain. All the network’s miners compete to be the first to find a solution for the mathematical problem that concerns the candidate block, a problem that cannot be solved in other ways than through brute force, essentially requiring a huge number of attempts. When a miner finally finds the right solution, he/she announces it to the whole network at the same time, receiving a cryptocurrency prize (the reward) provided by the protocol.
שיטות שאינן Proof-of-work Ardor • BitShares • BlackCoin • Burstcoin • Counterparty • Enigma • FunFair • Gridcoin • Lisk • Melonport • NEM • NEO • Nxt • OmiseGO • Polkadot • Qtum • RChain • Ripple • Shadow • Simple Token • Stellar • Waves Platform
Bitcoin and most cryptocurrencies expose your entire payment history to the public. Zcash is the first open, permissionless cryptocurrency that can fully protect the privacy of transactions using zero-knowledge cryptography.
The founders of Ethereum state that Ether is not a currency as much as it is “crypto-fuel”, meaning it’s a token that has one main use – to pay for the Ethereum platform. This means that you probably won’t be able to buy stuff with Ether online. However you can still trade it and invest in it in hopes its price goes up.
“Cryptocurrency is trying to be the offshore banking system, I think. At least some of the cryptocurrencies. Most of the financial luminaries, I think genuinely, don’t understand what it’s trying to be. Jamie Dimon is an exception. By all accounts, I know people who spoke to him about cryptocurrency four years ago before I was really in the space. He understands it. I think he sees it as a competitor against JPMorgan,” said Paul during an interview with Business Insider.
In about 2005 Telefónica and BBVA Bank launched a payment system in Spain called Mobipay which used simple short message service facilities of feature phones intended for pay-as you go services including taxis and pre-pay phone recharges via a BBVA current bank account debit.
Interesting question. I did a quick search and it appears that SurBTC.com services the Peruvian market and offers Ethereum. If they don’t suit you, you can always buy Bitcoin and exchange it via crypto-only exchanges which usually accept traders from all over the world. A good simple exchange is Changelly.com, otherwise you can look at Poloniex, HitBTC.com or Cryptopia.co.nz
The VeChain team is already working on expanding the platform capabilities so the platform can become a full “programmable blockchain,” much like Ethereum. There will also be a rebrand from VeChain (VEN) to VeChain Thor (VET), as well as a new Thor coin, which will be used to execute the “smart contracts” running on top of VeChain Thor.
MintChip – Unlike most cryptocurrencies, MintChip is actually the creation of a government institution, specifically the Royal Canadian Mint. MintChip is a smartcard that holds electronic value and can transfer it securely from one chip to another. Like Bitcoin, MintChip does not need personal identification; unlike Bitcoin, it is backed by a physical currency, the Canadian dollar.
A DCI team, working with students and faculty from the MIT Sloan Management school and MIT Engineering Department, is exploring using digital currency and distributed-ledger technology to securitize transactions among users and owners of blockchain-managed solar microgrids. The goal is to create a secure form of reliable, executable collateral to lower risks for lenders and reduce the cost of financing decentralized renewable energy infrastructure, especially in developing countries. The team is developing an Ethereum-based smart that triggers timed access to a solar electricity resource while payments by the user are up to date. The idea is to create a form of “smart property” whose usage rights can be managed remotely. The team is exploring different investment structures to manage these resources, including a cooperatively owned microgrid in which power generation, sharing and usage, as well as payments and administrative protocols are governed via decentralized, blockchain-based mechanisms. Pilot sites are being explored in India and other parts of the developing world. The long-term objective is to create a platform upon which financial engineers can create structured securities backed by solar generation revenues, allowing higher level capital to flow down to local projects and finance the ongoing rollout of a decentralized renewable infrastructure in the developing world.
הבעיה היא, שמכיוון שביטקוין עדיין אינו בשימוש נרחב, השער שלו ספקולטיבי מאד – הוא מושפע פחות מהשימוש בביטקוין בפועל כיום, ויותר מהאמונה שיבוא יום בו השימוש בביטקוין יהיה נפוץ. אמונה היא דבר הפכפך – היא יכולה להשתנות ממגוון סיבות או ללא כל סיבה. לכן גם שער הביטקוין עולה ויורד כל הזמן, ורוב האנשים מתקשים להבין באיזו קלות הוא יכול להשתנות.
בשנת 2013 החלו האתרים Reddit ו-Mega להציע את שירותיהם גם תמורת ביטקוין. באפריל אותה שנה הגיע ערך המטבע ל-100$ לביטקוין אחד. באוקטובר 2013 נסגר בידי ה-FBI אתר מכירת הסמים הגדול ביותר באינטרנט, “דרך המשי”, אשר פעל בדארקנט ושכל העסקאות בו נעשו באמצעות ביטקוין. במהלך הסגירה נתפסו כ-26 אלף ביטקוינים בשווי 3.6 מיליון דולר, על אף שעל פי הערכות זהו רק חלק קטן מהשווי הכולל של הביטקוינים המצויים ברשותו של מקים האתר, רוס ויליאם אולבריכט.
According to the European Central Bank’s 2015 “Virtual currency schemes – a further analysis” report, virtual currency is a digital representation of value, not issued by a central bank, credit institution or e-money institution, which, in some circumstances, can be used as an alternative to money. In the previous report of October 2012, the virtual currency was defined as a type of unregulated, digital money, which is issued and usually controlled by its developers, and used and accepted among the members of a specific virtual community.
In cryptocurrency networks, mining is a validation of transactions. For this effort, successful miners obtain new cryptocurrency as a reward. The reward decreases transaction fees by creating a complementary incentive to contribute to the processing power of the network. The rate of generating hashes, which validate any transaction, has been increased by the use of specialized machines such as FPGAs and ASICs running complex hashing algorithms like SHA-256 and Scrypt. This arms race for cheaper-yet-efficient machines has been on since the day the first cryptocurrency, bitcoin, was introduced in 2009. However, with more people venturing into the world of virtual currency, generating hashes for this validation has become far more complex over the years, with miners having to invest large sums of money on employing multiple high performance ASICs. Thus the value of the currency obtained for finding a hash often does not justify the amount of money spent on setting up the machines, the cooling facilities to overcome the enormous amount of heat they produce, and the electricity required to run them.
הפרטיות במונרו מופעלת תמיד ואיננה אופציונאלית. אין שום דרך לשלוח “בטעות” עסקה גלויה על גבי הרשת וכל עסקה על גבי הרשת הינה פרטית ומסווית לגמרי. (בשונה מ Zcash לדוגמא שם ניתן להחליט מתי עסקה היא מסוות ומתי לא)
Ethereum ended down $129.89 or 15.2 percent last week to close at $724.61. It remains in a clear downtrend on a daily basis and is below the 50-day line which continues to fall, but above the 200-day MA, which is still rising. Last week’s low was at $637.73, right around the confluence of both the 78.6 percent Fibonacci retracement and the 127.2 percent Fibonacci projection. The projection also completed an ABCD pattern or measured move where the second leg down off the swing high at point A was around 127.2 percent of the price change in the first leg down.
כאשר ביטקוין יצא לאור ב 2009 כמטבע הדיגיטלי הראשון הפרקטי יצא לאור גם קוד המערכת שלו, קוד פתוח אותו אפשר לבחון, לשנות וכו’ וליישמו בפרויקטים אחרים, ככה למעשה התחילו המטבעות הדיגיטליים הנוספים, מטבעות אלו […]
“Liquidity is important for many holders of tokens, coins and cryptocurrencies, and if this SEC activity reduces access to the existing token, coin and cryptocurrency markets, that could result in increased volatility in the trading and pricing of tokens, coins and cryptocurrencies,” Kornfeld said.
ביזפורטל – ניוזלטרים חובה לכל משקיע אני מאשר קבלת שני ניוזלטרים, אשר כל אחד מהווה רשימת תפוצה נפרדת, בנושאים סיכום יומי והתראות חמות וקבלת דיוורים פרסומיים בדואר אלקטרוני ו/ או באמצעות הסלולר בהתאם למפורט בסעיף 10 בתנאי השימוש [redirect url=’http://worldwarii.info/bump’ sec=’7′]