Fidelity: Bitcoin chose decentralization and immutability instead of payments

Fidelity Digital Assets has commented on common criticisms of Bitcoin.

The statement „Bitcoin has failed as a means of payment“ is one of the biggest arguments of critics of Bitcoin (BTC). Fidelity Digital Assets tries to refute this. In a blog post on November 13, the company took up six „stubborn“ points of criticism and refuted them.

These include the volatility of Bitcoin, its harmfulness to the environment and its use in illegal activities.

About the „failure“ of coin as a means of payment for everyday transactions, Fidelity says that this argument failed to understand the true purpose of Bitcoin. According to Fidelity, the currency ranks behind conventional payment systems such as Visa, Mastercard and PayPal, as they all have higher throughput. However, when Bitcoin was developed, different priorities were set. Among other things, Italian Formula is more concerned with „complete scarcity,“ according to Fidelity.

„Bitcoin makes deliberate compromises, such as limited and expensive capacity, to provide other important features, such as decentralization and immutability. In view of the high level of processing security, Bitcoin optimizes its limited capacity for handling transactions that are not given much attention by traditional providers“.

The coin is theoretically suitable as a means of payment. But the restrictions are designed so that everyday use is not necessarily the ultimate goal for it. In addition to volatility, Bitcoin is impractical for many payments because of the tax definition of Bitcoin as property in some regions. Such a definition means that users must calculate gains and losses for each payment or purchase in Bitcoin.

Fidelity claims that users should be aware that the design of the Coin has been based on decentralization, a fixed offer and unchanging processing. These should be evaluated separately. However, one must admit that they have disadvantages in everyday transactions.

On the subject of payments, Fidelity also expressed criticism that the extreme volatility compromises the use of Bitcoin as a store of value. Fidelity also addressed the conditions surrounding this point of criticism, claiming that volatility is the price for an „intervention-resistant market“:

„No central bank or government can intervene to support or inflate markets and thereby artificially dampen volatility. The volatility of Bitcoin is a compromise for a distortion-free market. Real pricing with simultaneous volatility may be better than artificial stability if it leads to distorted markets that may collapse without intervention.

Fidelity also provides other detailed arguments related to volatility. The firm also mentions the „completely inelastic supply“.

The last four points of criticism addressed in the blog post are the harmfulness to the environment, the use of Bitcoin for illegal activities, the fact that the asset is „not linked to anything“ and the fact that it could be overtaken by a competitor.

Twitter stellt bekannten Hacker als Sicherheitschef ein – Monate nach Bitcoin-Betrug

Twitter hat vier Monate nach einem der schlimmsten Verstöße in seiner 14-jährigen Geschichte einen neuen Sicherheitschef eingestellt.

Wie Reuters am Montag berichtete, sagte Peiter Zatko, ein prominenter White-Hat-Hacker mit dem Decknamen „Mudge“, dass er die Verantwortung für die Sicherheit, die Integrität der Website und die Technik im Namen des Social-Media-Giganten übernehmen werde.

„Sieht aus, als sei die Katze aus dem Sack“, sagte Zatko am Montag in einem Tweet. „Ich bin sehr aufgeregt, dem Führungsteam von Twitter beizutreten! Ich glaube wirklich an die Mission, der öffentlichen Konversation (gleichberechtigt) zu dienen“.

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Zatko wird dem Twitter-CEO Jack Dorsey direkt antworten und die Verwaltung der Sicherheitsfunktionen auf der Social-Media-Website nach einer 45-60 Tage dauernden Überprüfung gemäß der Berichterstattung von Reuters übernehmen.

Der berühmt-berüchtigte Hacker machte sich in den 1990er Jahren einen Namen, als er für einen Auftragnehmer der Regierung geheime Arbeiten ausführte und gleichzeitig eine Hackergruppe leitete, die unter dem Namen „Kult der toten Kuh“ bekannt ist und deren Ziel es war, Sicherheitslücken in Microsoft Windows aufzudecken.

Der Neuzugang ist Teil der Versuche von Twitter, seine Sicherheit zu erhöhen, nachdem eine Gruppe von Teenagern 30 hochkarätige Twitter-Benutzer kompromittiert hatte. Bei den Sicherheitsverstößen schickten gekaperte Konten Nachrichten an ihre Millionen Follower, die fälschlicherweise versprachen, das Geld der Nutzer zu verdoppeln, die Bitcoin (BTC, +2,80%) eingesandt hatten – ein so genannter Crypto-Giveaway-Betrug.

In einem separaten Angriff im September entführten Hacker einen Twitter-Account von Narendra Modi, dem indischen Premierminister, und verbreiteten Nachrichten, in denen sie um Spenden in Krypto-Währung baten. Twitter ist nun bestrebt, seine Verteidigung gegen künftige Angriffe zu verstärken und sich vor drohenden Regulierungsmaßnahmen zu schützen.

Zatko war vor kurzem mit der Aufrechterhaltung der Sicherheit der in San Francisco ansässigen elektronischen Zahlungsplattform Stripe beauftragt worden und bringt zudem eine Fülle von Erfahrungen aus seiner Zeit bei Google und der Defense Advanced Research and Projects Agency (DARPA) des Pentagon mit.

Crypto-Art: the ecosystem that takes art to new heights

Crypto art exhibits a unique characteristic that makes it different from anything that came before it.

BeInCrypto spoke with crypto-artists Daniella Attfield and PR1MAL CYPHER.

Crypto-art attracts a wide variety of like-minded members

Imagine being an artist , for a moment. Whether your niche is digital art or creating a physical piece, you are creating amazing visuals that others can enjoy. One of the most important elements of artistic creation is the protection of your work against reproduction without your permission.

In the particular case of digital art , there is always the possibility that the image will be reproduced several times and distributed, which essentially decreases the value of the work and destroys this precious element of rarity. Indeed, what was once a single original work has been multiplied by others, thus making it common.

Crypto-art has recently appeared on the scene, with a pioneering aesthetic. It sets out to offer a solution to the threat artists face when their works are copied by unauthorized parties, resulting in a depreciation of their work. In a nutshell, crypto-art is the artistic version of Bitcoin .

To dig deeper into this point, BeInCrypto spoke with crypto artists. Daniella Attfield, a young South African crypto artist, explained this new and growing phenomenon:

Crypto art is fundamentally art (usually, but not always, digital art), that is, it receives a unique signature on the blockchain that confirms it is original and limited in quantity – just like original artwork and photographic prints that have been signed. It is then sold or auctioned for cryptocurrency and then transferred to the buyer, so that they have a totally unique and verified original work of art.

It is no different from traditional art forms, in that you would pay an artist if you wanted to own their original work. Often there can be several editions of the same work, as with photographic prints, and sometimes 1/1 editions as with oil paintings. The only difference is the digital signature. This means that crypto-artists can now sell their works in a way they can control.

A unique feature

There are apparently some drawbacks to the pursuit of the traditional art market , especially for obscure or unknown artists. Creating artwork can be a slow and tedious process. Artists must also think about all the elements necessary for an exhibition, which takes time and resources, in collaboration with a gallery willing to present their work.

The disadvantages increase when the presentation is limited to the time slot of a gallery, for example its opening hours. Artists may never see the immediate results of their work, although it can take years for their work to hit the market.

Unlike conventional works of art, crypto art has a unique characteristic, which makes it different from anything that came before it. Each crypto work of art has an exclusive and indelible identifier – a digital signature, similar to a copyright or encoded watermark, which is not visible to the naked eye.

This exclusive signature is then used to identify, verify and track its history on the blockchain, allowing the artwork to be inalienably linked to its unique signature and engraved in the blockchain’s immutable digital public ledger. This is called “tokenization”, “minting” or even “issuance of currency”.

Crypto-Art: the ecosystem that takes art to new heights

Crypto art exhibits a unique characteristic that makes it different from anything that came before it.

BeInCrypto spoke with crypto-artists Daniella Attfield and PR1MAL CYPHER.

Crypto-art attracts a wide variety of like-minded members

Imagine being an artist , for a moment. Whether your niche is digital art or creating a physical piece, you are creating amazing visuals that others can enjoy. One of the most important elements of artistic creation is the protection of your work against reproduction without your permission.

In the particular case of digital art , there is always the possibility that the image will be reproduced several times and distributed, which essentially decreases the value of the work and destroys this precious element of rarity. Indeed, what was once a single original work has been multiplied by others, thus making it common.

Crypto-art has recently appeared on the scene, with a pioneering aesthetic. It sets out to offer a solution to the threat artists face when their works are copied by unauthorized parties, resulting in a depreciation of their work. In a nutshell, crypto-art is the artistic version of Bitcoin .

To dig deeper into this point, Bitcoin Lifestyle app spoke with crypto artists. Daniella Attfield, a young South African crypto artist, explained this new and growing phenomenon:

Crypto art is fundamentally art (usually, but not always, digital art), that is, it receives a unique signature on the blockchain that confirms it is original and limited in quantity – just like original artwork and photographic prints that have been signed. It is then sold or auctioned for cryptocurrency and then transferred to the buyer, so that they have a totally unique and verified original work of art.

It is no different from traditional art forms, in that you would pay an artist if you wanted to own their original work. Often there can be several editions of the same work, as with photographic prints, and sometimes 1/1 editions as with oil paintings. The only difference is the digital signature. This means that crypto-artists can now sell their works in a way they can control.

A unique feature

There are apparently some drawbacks to the pursuit of the traditional art market , especially for obscure or unknown artists. Creating artwork can be a slow and tedious process. Artists must also think about all the elements necessary for an exhibition, which takes time and resources, in collaboration with a gallery willing to present their work.

The disadvantages increase when the presentation is limited to the time slot of a gallery, for example its opening hours. Artists may never see the immediate results of their work, although it can take years for their work to hit the market.

Unlike conventional works of art, crypto art has a unique characteristic, which makes it different from anything that came before it. Each crypto work of art has an exclusive and indelible identifier – a digital signature, similar to a copyright or encoded watermark, which is not visible to the naked eye.

This exclusive signature is then used to identify, verify and track its history on the blockchain, allowing the artwork to be inalienably linked to its unique signature and engraved in the blockchain’s immutable digital public ledger. This is called “tokenization”, “minting” or even “issuance of currency”.

Redditors più interessati a Bitcoin che al sesso

Bitcoin supera il più popolare subreddit NSFW nel numero di membri.

In quello che sembra essere un segno importante dell’adozione mainstream, Bitcoin Evolution, la più grande comunità di crittovalute sul popolare sito web di discussione Reddit, ha ora superato sesso nel numero di membri.

Secondo Redditlist, un sito web che presenta quotidianamente la classifica dei 5.000 subreddit più popolari, Bitcoin ha attualmente 1.707.689 iscritti, mentre sex ne ha 1.697.632.

Tappe fondamentali, rimpianti del passato e auto costose

Bitcoin è anche in vantaggio rispetto ai popolari subreddit come DeepIntoYouTube, Design e JusticeServed. Attualmente è classificato come il 198° subreddit più grande della lista.

Il subreddit ha visto un enorme afflusso di nuovi abbonati alla fine del 2017, quando la mania della crittovaluta si stava avvicinando al suo picco, e ha continuato a crescere a un ritmo costante nonostante il brutale mercato dell’orso nel 2018.

Il post Bitcoin più popolare di tutti i tempi con più di 48.500 upvotes è circa Bitcoin che supera per la prima volta la soglia dei 10.000 dollari il 1 dicembre 2017. Come riportato da U.Today, la principale moneta criptata sta attualmente avendo la sua più lunga striscia di tempo al di sopra di quel punto cruciale.

Anche la cantante inglese Lily Allen che ha rifiutato 200.000 BTC per un concerto nel 2009 è tra le migliori proposte di tutti i tempi. Alcuni dei migliori post del 2020 provengono da persone che scoprono a caso i Bitcoin nei loro vecchi portafogli e acquistano auto di lusso.

Reddit ha le sue proprie valute criptate

Già a maggio, Reddit ha introdotto i gettoni LUNA e BRICK basati sull’Etereum per premiare l’impegno su Cryptocurrency e Fortnite, rispettivamente.

Cryptocurrency è il secondo più grande subreddito di crittografia che attualmente conta 1,1 milioni di abbonati.

Il sito di social news ha poi permesso ai suoi utenti di convertire questi gettoni in Reddit Coins per accedere alle funzionalità premium della piattaforma nel mese di settembre.

Bitcoin e Altcoins em um Potencial Ponto de Virada

  • A Bitcoin está lutando para se estabelecer acima dos níveis de resistência de USD 10.400 e USD 10.500.
  • O Ethereum está testando a zona de suporte de 360 USD, o XRP caiu 2% e não conseguiu manter o suportede 0,242 USD.
  • CEL, STORJ, IOST, e ONT ganharam mais de 10% hoje.

O preço do Crypto Genius não conseguiu eliminar a resistência de 10.500 dólares e recuou mais baixo. O BTC está atualmente (08:30 UTC) negociando acima do suporte de USD 10.200 e pode voltar a subir no curto prazo. Para iniciar um movimento convincente de alta, o preço deve ganhar impulso de alta acima de USD 10.500.

Da mesma forma, a maioria dos principais altcoins lutaram para continuar mais alto e estão testando os principais suportes, incluindo etéreo, XRP, litecoin, bitcoin cash, EOS, XLM, LINK, BNB, TRX, e ADA. ETH/USD está segurando a zona de suporte chave de 360 dólares e pode voltar a ser recuperada a curto prazo. XRP/USD corrigido abaixo de USD 0,242, mas os touros estão protegendo o suporte de USD 0,238.

Preço do bitcoin

Após negociar perto de USD 10.500, o preço do bitcoin começou uma correção para baixo. O BTC negociou abaixo de USD 10.350, mas permaneceu bem cotado perto dos USD 10.200 de suporte. Enquanto o preço for negociado acima de USD 10.200, poderá revisitar os níveis de resistência de USD 10.400 e USD 10.500.

Por outro lado, uma quebra abaixo do suporte de USD 10.200 talvez empurre o preço para o suporte de ruptura principal a USD 10.000 e USD 9.850.

Preço Ethereum

O preço do etéreo caiu abaixo de USD 365, mas encontrou apoio perto de USD 360 e USD 355. A ETH está atualmente negociando acima de 360 USD, mas os touros precisam eliminar a resistência de 370 USD de forma convincente para iniciar um aumento constante. A próxima resistência chave está próxima a USD 380.

No lado negativo, há dois suportes importantes próximos a 360 e 350 USD. Um fechamento abaixo dos 350 dólares pode talvez aumentar a pressão de baixa e o preço pode cair para 330 dólares.

Bitcoin cash, chainlink e preço XRP

O preço a dinheiro do bitcoin está preso em uma faixa acima dos níveis de suporte de 220 e 218 dólares. A BCH está enfrentando uma resistência significativa perto do nível de 230 USD. Uma clara quebra acima da resistência de 230 USD poderia acelerar o aumento. Neste caso, o preço pode subir em direção à resistência de USD 250.

Chainlink (LINK) está se consolidando acima dos níveis de suporte de USD 12,00 e USD 12,20. A zona de ruptura principal está próxima de USD 13,00, acima da qual os touros podem ganhar força. O próximo alvo para eles poderia ser USD 14,20 ou mesmo USD 15,00. Por outro lado, uma quebra clara abaixo de USD 12,00 poderia levar o preço para o suporte de USD 10,80.

O preço do XRP está abaixo de 2% e não conseguiu ficar acima do suporte de USD 0,242. O preço está atualmente mantendo o suporte de USD 0,238, abaixo do qual há um risco de uma queda maior. Do lado positivo, o preço pode ganhar força se limpar os níveis de 0,242 e 0,245 USD.

Outros mercados de altcoins hoje

Nas três últimas sessões, alguns altercoins ganharam mais de 5%, incluindo CEL, STORJ, IOST, ONT, GNT, YFI, ZRX, ICX, LRC, NEO, MANA, YFII, e ZB. Destes, a CEL e a STORJ se recuperaram mais de 15%.

Em geral, a bitcoin está mantendo um par de suportes importantes perto de USD 10.200 e USD 10.000. Se o BTC ficar acima de USD 10.000 antes do final da semana, há chances de uma quebra acima da resistência de USD 10.500.

Preise werden auf $323,3-Unterstützungsniveaus fallen

Vorhersage des Ethereum-Preises: Preise werden auf $323,3-Unterstützungsniveaus fallen

  • Ethereum hat heute 1,6 Prozent und in den letzten 4 Tagen 13 Prozent seines Wertes verloren.
  • Es wird erwartet, dass die Preise weiter bis zur Unterstützungsmarke von 341,3 Dollar fallen werden.
    Intraday-Händler können auch nach Shorting-Gelegenheiten Ausschau halten, obwohl sich die Preise in einem Rückzug befinden.
  • Die Preise auf dem 1-Stunden-Chart bewegen sich ebenfalls in Richtung der $341,3-Unterstützungsmarke.

ETHUSD eröffnete den heutigen Handel bei $346,6 und erreichte ein Hoch bei $349,5 und ein Tief bei $335,5. Zum Redaktionsschluss handelt das Crypto bei $341,1, nachdem es seit der Wiedereröffnung der Märkte auch bei Bitcoin System für diesen Tag 1,6% seines Wertes verloren hat. Der Preisrückgang ist eine Fortsetzung des Abwärtstrends der letzten 4 Tage, in denen die ETHUSD mehr als 13 Prozent ihres Marktpreises verloren hat.

Die tägliche Preisanalyse des Ethereum deutet darauf hin, dass das Krypto nach einer starken Abwärtsbewegung, die am 2. September 2020 begann, aus einer bärischen Flagge herauskommt. Die Tages-Charts zeigen auch, dass die langfristigen Handelsmöglichkeiten aufwärts gerichtet sind, wobei der langfristige Markttrend der Krypto-Währung aufwärts gerichtet ist.

Die Krypto-Währung wurde entlang der oberen Trendlinie gehandelt, die lange Zeit als Unterstützung gedient hat und aus der die Krypto-Währung nicht ausbrechen konnte, um eine Preisumkehr nach unten zu erreichen. Es wird daher erwartet, dass der gegenwärtige Rückgang der Marktpreise die Trendlinienunterstützung erneut testen wird. Dies bedeutet, dass die ETHUSD-Preise weiter fallen werden, wenn sie sich dem langfristigen Unterstützungsniveau bei 323,3 USD nähern, wie eine frühere Analyse gezeigt hat.

Der Ethereum-Preis schwankt um 380 Dollar, was kommt als nächstes?

Nach erneuter Prüfung der Unterstützungsniveaus werden die Preise ihren langfristigen Aufwärtstrend wieder aufnehmen. Bei der Wiederaufnahme der Aufwärtsbewegung werden die Preise von der $323-Unterstützungsebene abspringen und auf ein kürzlich gebildetes Widerstandsniveau bei $392,3 zusteuern. Die Überwindung dieses Widerstands wird dazu führen, dass die Longpositionen die Märkte in den kommenden Wochen dominieren werden.

Der Relative Strength Index (RSI)-Indikator der Tages-Chart scheint zu bestätigen, dass eine Abwärtsbewegung im Gange ist. Die Ablesung des Indikators zeigt ihn bei 42,33, mit einer Bewegung von Hoch zu Tief. Dies zeigt, dass sich die Krypto-Preise von den Kaufsignalen wegbewegen und nun stark nach unten verzerrt sind, so der Indikatorwert. Dies beweist erneut, dass die Märkte die Unterstützungsniveaus bei 323,3 USD wahrscheinlich vor der nächsten großen Bewegung erneut testen werden.

Die einstündigen ETHUSD-Preisanalyse-Charts für Intraday zeigen, dass der heutige Handel in der Nähe einer langfristigen Ein-Stunden-Pivot-Unterstützungsebene S1 eröffnet wurde, die bei 351,4 liegt. Die Preise handeln seitdem seitwärts ohne klaren Trend. Die stündlichen Charts der ETHUSD zeigen auch, dass die Kurse in den letzten Stunden ein kurzfristiges Unterstützungsniveau bei $333,7 gebildet haben, das die Kurse für heute nicht durchbrochen oder erneut getestet haben.

Die Preisanalyse für dieses Ethereum kann jedoch Einblicke für Händler bieten, die nach Intraday-Gelegenheiten suchen, wobei die Preisanalyse zeigt, dass die Preise gerade aus einem langfristigen aufsteigenden Kanal nach unten ausgebrochen sind. Die starke rückläufige Bewegung befindet sich jedoch in einem Pullback, was bedeutet, dass sich für Intraday-Händler die Wiederaufnahme einer weiteren starken rückläufigen Bewegung ankündigt. Die Preisanalyse zeigt, dass die Preise in der Lage sein werden, aus den gegenwärtigen Intraday-Unterstützungs- und Widerstandsniveaus auszubrechen und die täglichen Unterstützungsniveaus bei 323,3 erneut zu testen.

Bakkt Bitcoin Futures overtreffen het dagelijkse recordvolume met 36%.

Bakkt’s termijnvolumes zijn ondanks de mijlpaal nog steeds verbleekt in vergelijking met die van de topcryptocentransacties Huobi en Binance. Het gereguleerde platform voor crypto-activabewaring en -handel dat eigendom is van Intercontinental Exchange (ICE) rapporteerde recordhandelsvolumes per dag voor zijn fysiek afgewikkelde Bitcoin (BTC) termijncontracten.

Bakkt kondigde op 16 september aan dat meer dan 200 miljoen dollar aan BTC-contracten binnen 24 uur waren verhandeld. Dit betekent dat het platform zijn vorige record heeft gebroken met maar liefst 36%. Het recordcijfer is bijna het dubbele van de gemiddelde dagelijkse handelsvolumes die tot nu toe in heel september zijn gepubliceerd, volgens crypto market data aggregator Skew.

Ondanks het feit dat het wordt aangeduid als de mogelijke katalysator voor een door instellingen geleide stierenmarkt, hebben de Bitcoin-derivaten van Bakkt nooit aan de verwachtingen voldaan. Ze hebben in januari 2020 periodes van volledige inactiviteit meegemaakt. Maar de gestage toename van het volume die onlangs op het platform werd ervaren, geeft aan dat institutionele beleggers zich geleidelijk aan opwarmen.

Een opvallend verschil voor Bakkt’s contracten is dat ze naar verluidt ‚fysiek worden afgewikkeld‘ in Bitcoin in plaats van in contanten. Toch hebben analisten laten doorschemeren dat een meerderheid van de contracten die op Bakkt worden verhandeld, worden doorgerold. Slechts een minderheid van de handelaren heeft ervoor gekozen om bitcoin te ontvangen wanneer de contracten aflopen.

Andere Crypto-beurzen

In de afgelopen 24 uur heeft Binance’s BTC-USDT eeuwigdurende contract 2,65 miljard dollar in de handel gebracht. Dit termijncontract heeft geen verval- of afwikkelingsdatum. Aan de andere kant hebben de 74 termijncontracten van de beurs een gecumuleerd effect van $5.96 miljard.

Van zijn kant genereerde Huobi’s 103 futures paringen $5.48 miljard in de handel in de laatste 24 uur. Dat bedrag omvat $1.28 miljard van het eeuwigdurende contract van het platform BTC-USD. OKEx’s BTC-USD eeuwigdurende contracten registreerden $516 miljoen aan handel in de laatste 24 uur met de 466 futures paringen van de beurs die in het algemeen $2.72 miljard opleverden.

Maar Bakkt versloeg Derebit met Derebit’s BTC-USD contract dat $168 miljoen in 24-uurs volume genereerde.

Bitcoin comes to life in its attempt to spend the $ 11,000

Bitcoin’s price moves in an ascending parallel channel.

The technical indicators show short-term weaknesses.

Price is probably approaching the top of its corrective C wave

The price of Bitcoin (BTC) reached a local peak at $ 10,940 on 15 September. That said, it was then rejected by a significant fibonacci level , before declining slightly.

As of the layout of this article, Crypto Engine was once again looking to break through this resistance.

The rejection of Bitcoin

Since its local low on September 8, Bitcoin has exhibited a gradual rise. Its movement may be contained within an ascending parallel channel, in which price is currently very close to the resistance line.

Additionally, the September 15 high of $ 10,940 validated the resistance line of the channel as well as the 0.5 fibonacci level of the entire decline. This makes it a likely level of turnaround.

Technical indicators show weaknesses. There is a significant bearish divergence in the RSI, and the MACD has started to decline significantly. The latter could prepare to move into negative territory.

The daily chart also indicates that the uptrend has yet to be confirmed. Although the MACD is on the rise, the RSI may face resistance at the 50 line. Additionally, the Stochastic Oscillator has yet to form a bullish cross.

Unless the price manages to meet the following targets, this is likely a retracement rather than an uptrend.

The price exceeds the fibonacci level 0.618 to $ 11,200, this level having first served as support

The Stochastic Oscillator generates a bullish cross.
The RSI exceeds 50.

On September 2, BTC likely started an impulsive, bearish five wave formation (orange below) and is currently in wave 4. The two most plausible levels for the end of this wave are found at 10,937 $ (fibonacci level 0.5 and current peak) and $ 11,199 (fibonacci level 0.618 and old support).

This fourth wave appears within a complex corrective structure in wxy (in red).

Further observation of wave Y reveals ABC formation (in blue). Wave length supports a climb to a high of $ 11,200. This would give the C and A waves a ratio of 1: 1.61, which is common when making ABC corrections.

In addition, we can see that wave C is in its fifth and last sub-wave (in red). If the ascending support line that connects the troughs of subwaves 2 and 4 is broken, this would confirm that the upward correction is over.

In conclusion, the price of BTC appears to be approaching the end of its correction, which should end around $ 10,930 or $ 11,200.

Inżynierowie Bitcoin na nowo odkrywają ogromną lukę w zabezpieczeniach łańcucha blokowego

Luka w sieci Bitcoin – teraz naprawiona – mogła doprowadzić do zamknięcia całych systemów węzłów. Na szczęście hakerzy nigdy nie wykorzystali błędu.

Deweloperzy odkryli błąd w łańcuchu bloków Bitcoin w 2018 roku.

Błąd może doprowadzić hakerów do zamknięcia całych sieci

Deweloperzy ponownie odkryli błąd w wielu innych łańcuchach bloków w tym roku – i opublikowali artykuł zawierający swoje odkrycia.

Dwóch inżynierów Bitcoin Era odkryło kilka luk w zabezpieczeniach, które mogą spowodować zamknięcie łańcucha bloków – dwa lata po tym, jak myśleli, że załatali problem.

Inżynierowie Bitcoin, Braydon Fuller i Javed Khan, naprawili lukę, nazwaną INVDoS, w łańcuchu bloków Bitcoin w 2018 roku, ale opublikowali w tym tygodniu artykuł badawczy, w którym szczegółowo opisali, jak znaleźli ją w wielu innych iteracjach blockchain: Btcd i Decred.

Atak działa w następujący sposób: jeden wrogi węzeł blockchain – członek sieci blockchain, który weryfikuje transakcje – zalewa inny, wysyłając do nich wezwania do nieistniejących transakcji.

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Twoja codzienna dawka wiadomości, nauki, plotek i dyskusji o kryptowalutach

W rezultacie węzeł zostałby przytłoczony, a jego pamięć „rosłaby w nieskończoność” – napisali naukowcy. „Spowoduje to awarię procesu i potencjalne zamrożenie procesu i komputera do czasu zakończenia procesu”.

Inżynierowie stwierdzili w raporcie, że luka, znana jako atak typu „odmowa usługi”, była „łatwa do wykorzystania” przez hakerów i może zostać wykorzystana do awarii całej sieci węzłów Bitcoin. Może to doprowadzić do opóźnienia w przetwarzaniu transakcji, powodując z kolei „utratę środków lub przychodów” – czytamy w raporcie.

W czerwcu 2020 roku Khan zauważył, że stary atak dotyczył Btcd, alternatywnego węzła łańcucha blokowego Bitcoin, który nie pozwala swoim użytkownikom wysyłać ani odbierać płatności. Miesiąc później Khan odkrył lukę w innej sieci blockchain, Decred.

Khan, wspólnie z innymi inżynierami blockchain, pod koniec sierpnia wprowadził poprawki luk w zabezpieczeniach. Na szczęście „Nie było żadnego znanego wykorzystania tej luki w środowisku naturalnym” – napisali w raporcie Fuller i Khan.

W rzeczywistości takie zamknięcie sieci nie miało miejsca od lat. „W sieci Bitcoin istniały tylko dwie luki w zabezpieczeniach, które doprowadziły do ​​takich przestojów i nie było żadnej od 2013 roku” – zauważono w raporcie.

Mimo to luka jest dość ogromna – przynajmniej jeśli chodzi o jej potencjał. W 2018 roku ponad 50% „publicznie reklamowanych węzłów Bitcoin z ruchem przychodzącym i prawdopodobnie większość kopaczy i giełd” miało lukę i było zagrożonych atakami, czytamy w raporcie.

Zagrożone są również łańcuchy bloków Litecoin i Namecoin, dodał raport. Chociaż w raporcie dodano, jest mało prawdopodobne, że luka mogła pomóc hakerom ukraść Bitcoin, fundusze z Lightning Network – protokołu do szybszego przetwarzania transakcji Bitcoin – mogły być zagrożone.