Nigerias sentralbank Ok Peer-to-Peer Bitcoin-handel

Central Bank of Nigeria (CBN) har avklart sin holdning til bitcoin (BTC) og andre kryptovalutaer, noe som gjør det klart at kryptohandlere i landet står fritt til å utføre sin virksomhet på peer-to-peer-basis, slik forbudet gjorde ikke forbyr bruken av kryptoer, men det er snarere et forsøk på å beskytte långivere under dets virkeområde, ifølge en rapport fra lokal nyhetspublikasjon Today Ng, 20. mars 2021.

CBN kaster mer lys over Crypto Ban

I en noe positiv utvikling for Nigerias spirende kryptovalutaindustri har landets bankregulator, Central Bank of Nigeria (CBN), pekt mer lys på sitt forbud mot bitcoin- og altcoin-transaksjoner i staten.

I følge kilder nær den siste utviklingen har CBN-guvernøren Godwin Emefiele gjort det klart at dets direktiv bare hindrer finansinstitusjoner og banker under dets jurisdiksjon fra å betjene kryptorelaterte virksomheter eller delta i kryptorelaterte aktiviteter, og prøver ikke å gjøre bitcoinhandel i seg selv, en ulovlig handling.

Emefiele som ikke var fysisk til stede under det nylig avholdte CBN 30. seminaret for finanskorrespondenter og forretningsredaktører, avklarte bankens holdning via sin representant, Adamu Lamtek, viseadministrator, Corporates Services.

“CBN satte ikke begrensninger på bruken av kryptovalutaer, og vi fraråder ikke folk å handle med den. Det vi nettopp har gjort var å forby kryptovaluta-transaksjoner i banksektoren, ”erklærte regulatoren.

Adopsjon av krypto fortsetter å øke i Nigeria

Det vil bli husket at CBN tidligere i februar 2021 sendte ut en uttalelse til finansinstitusjoner under sitt virke, og minner dem om at de ikke har lov til å betjene børser og bitcoin.

“CBN-rundskrivet fra 12. januar 2017, ref FPR / DIR / GEN / CIR / 06/010, som advarte innskuddspenger (DMBer), ikke-bankinstitusjoner, andre finansinstitusjoner og medlemmer av publikum om risikoen forbundet med krypto transaksjoner refererer. I tillegg til tidligere reguleringsdirektiver om emnet, ønsker banken med dette å minne regulerte institusjoner på at det er forbudt å handle med kryptokurver eller legge til rette for betaling for kryptobørs, „erklærte CBN den gangen og la til“ Følgelig er alle DMB, NBFI og OFI rettet å identifisere personer og / eller enheter som handler i eller driver kryptobørs i sine systemer og sørger for at slike kontoer stenges umiddelbart. ”

CBN truet også med å straffe enheter som strider mot ovennevnte direktiv.

Siden den gang har sentraliserte børser i regionen, inkludert Luno, Binance og en rekke andre, stoppet innskudd og uttak av naira. Imidlertid har P2P-handelssteder fortsatt å blomstre, med ukentlig bitcoin-volum i regionen som representerer over 40 prosent av det totale kontinentets totale.

Med den siste utviklingen forventes det at flere børser i regionen vil begynne å lansere P2P-handelssteder.

Commerzbank embarrasses itself with anti-Bitcoin letter

Commerzbank disgraces itself with anti-Bitcoin letter

Crypto-scepticism is a tradition in the banking sector. Commerzbank is sticking to this tradition and reveals one thing in particular in an „Insight Report“: gaps in education.

Bitcoin and Commerzbank are unlikely to get off on the right foot any time soon. In an „Insight Report“, the major bank presents its critical view of the asset and reveals some gaps in its knowledge. The prejudices are the same old ones: Bitcoin is used for money laundering, has no intrinsic Crypto Engine value and the crypto market shows parallels to the tulip mania.

Commerzbank dissects Bitcoin

Bitcoin is not money: this is the damning verdict of the report „Precious Metals vs. Cryptocurrencies“, which voices the same concerns that have been heard since the beginning of the Bitcoin Blockchain. Even if Commerzbank makes the right arguments, the core statement of the report misses the reality.

The report suggests that Bitcoin is a shadow currency that opens the door to money laundering and terrorist financing. The underlying blockchain technology is „completely anonymous, with all its advantages and disadvantages“. A still widespread fallacy: Blockchain technology is not anonymous, but pseudonymous.

All transactions are visible to all network participants at all times. The Bitcoin Blockchain is a transparent database in which money flows can be traced – even for law enforcement agencies. KYC procedures make it easy to trace illegal money flows back to the originator. Even if criminals can take a diversion via Mixer or privacy coins like Monero, the crypto ecosystem is not the black hole it is often portrayed as. If one wants to find a scapegoat, fiat money remains the most popular money laundering vehicle.

Bitcoin without „ideal value“?

Commerzbank sees another point of criticism in the alleged misrepresentation of Bitcoin as a digital gold version. Due to the corona-induced „ultra-expansive monetary policy“, investors are fleeing to safe havens to protect themselves against inflation. Bitcoin, however, does not live up to this status, as it lacks „the use value and also the ideal value“.

The precious metal, on the other hand, has „always had a high sentimental value“, which is due to the fact that „gold cannot be multiplied at will and its extraction is associated with corresponding extraction costs“. The thesis that Bitcoin has no sentimental value is all the more remarkable in view of this conclusion, since the same premises also apply to Bitcoin. After all, the mining costs for Bitcoin are reflected in the proof-of-work process and can be measured in terms of the computing power expended.

Bitcoin key figure indicates an upswing, Aave and Chainlink achieve record prices

The SOPR suggests that the selling pressure on Bitcoin will ease, and the institutions are also still optimistic.

At the beginning of the weekend, Bitcoin ( BTC ) had hoisted itself into a price range of 33,500 – 32,000 US dollars, with the price only staying just above the 32,000 US dollar mark on Sunday.

Some analysts warn that the recent decline is fueled by the fact that institutional investors are slowly becoming “exhausted”.

Since January 19, there has been increasing pressure to sell, especially from Asia

Nonetheless, some institutional investors are holding onto the hope that Bitcoin Formula scam will climb to $ 100,000 in 2021 . The reason for this is probably that the mood among private investors continues to be good and that new Bitcoin index funds (ETF) have been applied for , which would create further investment vehicles for the crypto market leader.

Although Bitcoin faces resistance at $ 33,000, crypto statistician Willy Woo sees good chances of it going back up. As he explains, the „Bitcoin Spent Output Profit Ratio“ (SOPR) indicates that the course will start again. The key figure SOPR sets the average sales price in relation to the average purchase price for recently traded BTC. If this relative value is greater than 1, selling is worthwhile; below this threshold this would no longer be the case, which is why the selling pressure will probably decrease again for the time being (see graphic below).

With regard to the SOPR, Woo explains:

“The SOPR is doing a reset. Bitcoin that has been trading in the past few hours are no longer profitable on average. Investors would now lose money if they kept selling. “

Woo thinks it is unlikely that investors will be willing to make losses in order to sell their Bitcoin, which is why he sees the current price level bottoming out. From here it would go up again.

Altcoins and DeFi tokens on the rise

Some decentralized financial services (DeFi) altcoins and cryptocurrencies may gain while the crypto market leader is currently struggling. Polkadot (DOT), AAVE, Curve DAO Token (CRV) and Sushiswap (SUSHI) have all gained between 5% to 7%.

The upturn in DeFi tokens can largely be explained by increased trading activity on decentralized crypto exchanges (DEX), because, as the data from Dune Analytics shows, DEX trading volumes have increased continuously since July 2020, and the total is in DeFi invested fortunes now to a whopping $ 23.89 billion.

Bitcoin Hashrate Sets New Record

The hashrate of Bitcoin, has increased considerably due to the incorporation of new miners to the Blockchain network of that currency.

The computing power, or Bitcoin hashrate, has reached a new all-time high, which translates into increased activity. At the same time, the difficulty of the Blockchain network to process blocks, has also increased above its highest figure.

This scenario is presented as an increase in the connections of new Crypto Trader review equipment in the network. These are probably the ASICs that have been acquired by large mining companies in North America.

It should be remembered that firms such as Marathon, Riot Blockchain and others have made massive purchases in recent months. Likewise, it is important to highlight that the price of the most popular crypto-currency has recovered from the sharp drop at the beginning of the week and is once again close to 40K.

The 100 Richest Bitcoin Addresses

What is the importance of hashrate and the difficulty of Bitcoin?

One of the strongest indicators of the health of the Bitcoin network is the state of its hashrate. This indicates, when it’s high, that a large number of miners have joined the competition to process blocks, which makes the network more robust and more complex and secure against possible attacks. In short, it decentralizes it to a greater extent.

When the hashrate decreases, it means that there are disconnections and the network becomes more vulnerable. In that sense, the growth of the computing power of the last days can be considered as a sign that the mining business is proliferating and developing in an optimal way.

On the other hand, the incorporation of new miners, makes the mathematical algorithms to process blocks to be solved faster. In response, the network adjusts the difficulty of these algorithms to make them more complex. Consequently, the goal is to maintain the 10-minute average per block, regardless of the number of miners.

The difficulty of the Bitcoin network is adjusted every 2,016 blocks (about two weeks), so that mining is easier if the hashrate is low or harder if it’s high.
Currently, the Bitcoin hash rate is 151.7 EH/s. Source: Blockchain.comCurrently, the Bitcoin hashrate stands at 151.7 EH/s.

What happens if a Bitcoin ETF is approved in the US?

A rapidly growing business

At the moment, the difficulty of Bitcoin’s Blockchain network is 20.61T. Its last adjustment was on January 9th at the level of block 665,280. The next adjustment will be on block 667,296 approximately on January 23rd. If Bitcoin’s computing power keeps increasing, the difficulty will rise again.

It should be noted that the last major difficulty setting was on October 17, 2020. At that time the network reached 20.00T. Since then it had fallen due to a respective drop in Bitcoin hashrate at the end of the rainy season in some provinces of China.

As reported in CryptoTrend, the winter in China allows the energy value in some provinces to decrease. Excess hydroelectric power allows many miners to migrate to provinces like Sichuan. At the end of the monsoon, the miners are disconnected. This makes the hashrate go up and down several times a year.

At present, according to the graphs on Blockchain.com, Bitcoin’s hashrate is 151.7 EH/s.

All of this, as already mentioned, ensures that the Bitcoin network is in the best condition to operate. The mining business continues to expand and more miners are joining the race to get as many coins as possible.

Facts to keep in mind

  • The hashrate and difficulty of the Bitcoin network is at a historical record.
  • This indicates that more miners are joining the block competition.
  • Everything seems to indicate that the massive purchases of large firms are joining the network.
  • The next difficulty adjustment will be the weekend of January 23rd, at the level of block 667,296.

Spazio alla crescita? Solo il 10% dei cittadini del Regno Unito ha acquistato Bitcoin

Solo il 10% dei cittadini britannici ha acquistato BTC, ma il bene è molto popolare a Londra, perché un residente su quattro l’ha acquistato, dice il sondaggio.

Nonostante il prezzo e la popolarità siano cresciuti negli ultimi mesi, Bitcoin è ancora lontano dal ricevere l’attenzione delle masse. Un recente studio compilato nel Regno Unito ha concluso che solo il 10% dei partecipanti ha acquistato BTC, con i londinesi che sono più simili all’esposizione al bitcoin.

Il 10% dei cittadini britannici ha acquistato BTC

In seguito agli ultimi sviluppi dei mercati delle criptovalute, quando i prezzi hanno ricominciato a crescere, Opinium e AltFi hanno condotto un’indagine per raccogliere il punto di vista delle persone sui beni digitali.

Entrambe le organizzazioni hanno chiesto a 2.000 adulti britannici come la pandemia di COVID-19 abbia avuto un impatto sulla loro situazione finanziaria, e la maggioranza ha affermato di essersi rivolta agli investimenti digitali astenendosi dagli asset fisici.

Quando lo studio si è limitato al bitcoin e ad altre crittocurrenze, i risultati hanno mostrato un significativo margine di crescita. Solo il 10% (o 200 persone) degli intervistati ha dichiarato di aver acquistato beni digitali.

Nonostante sia ancora una percentuale relativamente piccola, i risultati del 2020 potrebbero essere considerati come un miglioramento annuale. Uno studio simile della fine del 2019 ha mostrato che il 5,3% dei partecipanti ha acquistato valute crittografiche.

La ricerca di AltFi ha anche indicato che piattaforme come Revolut e Freetrade hanno attratto una parte considerevole dei nuovi investitori. Altre sedi preferite sono state Google Pay e Apple Pay – il 28% degli acquirenti di criptovalute ha utilizzato una delle due.

Londinesi come Bitcoin

Non sorprende che i cittadini di una delle più importanti città finanziarie del mondo – la capitale britannica Londra – siano sembrati più aperti verso il bitcoin. Quasi il 25% di tutti i partecipanti che si trovano a Londra ha dichiarato di aver già acquistato BTC o un’altra moneta criptata.

D’altra parte, la città meno „amica dei bitcoin“ del Regno Unito si è rivelata essere Plymouth, con un solo residente che ha acquistato beni virtuali.

La ricerca ha anche confermato la storia che le giovani generazioni hanno maggiori probabilità di stanziare fondi in BTC. Quasi il 20% dei giovani tra i 18 e i 34 anni lo ha già fatto, mentre la percentuale è scesa a 1 solo con partecipanti di 55 anni o più.

In precedenza, JPMorgan ha pubblicato un rapporto con lo stesso risultato. Esso informava che la pandemia COVID-19 aveva messo in evidenza differenze significative tra le generazioni più giovani e quelle più anziane nei loro approcci di investimento. Tuttavia, la conclusione è stata che gli investitori anziani preferiscono ancora l’oro, mentre i giovani hanno una maggiore tolleranza al rischio e tendono a scegliere il bitcoin.

Firmy wydobywcze Bitcoin Zobacz ich akcje skok po aktywach osiągają nowy, wszechobecny poziom.

Dokładnie tak, jak bitcoin uderzył swój nowy wszechczasowy haj około 28.700 dolarów pod koniec grudnia ubiegłego roku, kilka zasobów górniczych Bitcoin Profit wzrósł do nowych poziomów, sugerując tym samym, że górnictwo staje się znacznie bardziej lukratywny biznes i że numer jeden waluty cyfrowej na świecie jest bardziej opłacalne niż kiedykolwiek.

Firmy wydobywcze Bitcoinu rozwijają się jak nigdy dotąd
Około tydzień temu udziały w takich firmach jak Riot Blockchain i Marathon Patent Group osiągnęły najwyższe od lat szczyty. Nastroje są takie, że teraz, gdy bitcoin osiąga nowe szczyty cenowe, sprzęt górniczy staje się nie tylko coraz trudniejszy w produkcji, ale i niezwykle trudny do zdobycia.

Faktem jest, że do sektora górniczego trafia coraz więcej osób, co sprawia, że nowicjuszom trudno jest dostać się do maszyn górniczych, które będą im potrzebne do wydobycia nowych monet i wyrobienia sobie marki w branży.

Wszyscy wiemy, co się dzieje, gdy coś staje się rzadsze. Staje się to bardziej wartościowe, a tak się wydaje w przypadku sprzętu górniczego. Biorąc pod uwagę niedobór, wartość tego sprzętu rośnie jak nigdy dotąd, a tym samym akcje firm zajmujących się wydobyciem kryptoideł doświadczają ogromnych skoków.

Udziały w zamieszkach wzrosły o około 18 procent w ciągu 24 godzin. Początkowo, w Wigilię Bożego Narodzenia 2020 roku, akcje te zamknęły się za nieco ponad 13 dolarów każdy, choć w następnym tygodniu akcje Riot Blockchain zostały sprzedane za około 15,49 dolarów. Maraton doświadczył jeszcze większych podwyżek, skoczył o 28% i sprzedał za około 14 dolarów w czasie pisania.

Marathon chce wykorzystać swój nowo powstały status dużej firmy górniczej i ogłosił, że zamierza kupić aż 70 000 nowych maszyn Antminer od Bitmain, prawdopodobnie największej firmy górniczej na świecie. Zakup ten będzie kosztował aż 170 milionów dolarów w czasie pracy prasy i zwiększy liczbę maszyn w zakładach Marathon do ponad 103.000.

Riot ma znacznie mniejsze plany, ale nadal chce udostępnić więcej sprzętu. Firma ogłosiła, że zakupi aż 15 000 nowych maszyn górniczych, aby utrzymać koszty wydobycia na niskim poziomie i zachować trwałą przewagę konkurencyjną firmy.

Dodawanie do swojej działalności sprzętu staje się rzadkością

Inne firmy, które chciały zobaczyć gwałtowny wzrost akcji górniczych, to m.in. Clean Spark, która twierdzi, że na początku zeszłego tygodnia jej akcje wzrosły aż o 16 procent. Firma planuje również zakup około 1 000 nowych maszyn górniczych.

Szacuje się, że po ostatnim skoku cen, bitcoin potrzebuje teraz tyle samo energii, co kraj, w którym mieszka 200 milionów ludzi. W chwili obecnej około dwóch trzecich produkcji bitcoinów pochodzi z działalności w Chinach, podczas gdy Stany Zjednoczone zajęły drugie miejsce i odpowiadają za około siedem procent całej produkcji bitcoinów.

OKCoin on Mnuchin’s Proposal: Crypto Industry Has No Tools for Compliance

If the law on crypto wallets is actually approved in the USA, this would mean a considerable amount of additional work for crypto exchanges.

US Treasury Secretary Steven Mnuchin recently proposed requiring exchanges and crypto platforms to verify the identities of customers transferring digital assets to self-hosted wallets.

OKCoin crypto exchange said the proposal would add extra work to exchanges

„After a preliminary examination of the FinCen proposal and the wallet verification requirements, I think that the proposal to extend the CTR requirement to crypto exchanges and to have to capture the physical address of the recipient would mean a large operational and administrative burden for exchanges“ , said the head of the conformity department at OKCoin Megan Monroe-Coleman to Cointelegraph.

For weeks, rumors of new crypto wallet laws went around in the crypto space. After all, Mnuchin made this proposal on December 18, before leaving office. The new regulation, which is so far only a proposal, provides that parties who send crypto amounts of more than $ 3,000 to an independent wallet will identify themselves . When you switch between exchanges, the limit goes up to $ 10,000.

After the announcement on Friday, the industry parties have 15 days to discuss the proposal

„FinCen specifically cited ’national security‘ as the reason for the proposal and the extremely short time allowed for comments,“ said Monroe-Coleman. He added:

„Therefore, OKCoin comments will focus on the challenges we foresee for our business and the industry as a whole. We would like to ask FinCs to issue practical and clear guidelines and allow a generous grace period in order for the industry to implement it successfully Because there is no clear solution or industry-wide tools that can help us with compliance. “

However, the proposal was less negative than initially expected. Before it was released, some US Congress members opposed revealing possible details about the law. There was talk of a whitelist of admissible addresses that was not included in the final version of the proposal.

Bitcoin und Altcoins versuchen einen Ausbruch nach oben, XRP stürzt um 10% ab

Der Bitcoin-Preis bereitet sich scheinbar darauf vor, über 19.500 USD an Dynamik zu gewinnen.

Ethereum steht vor einer großen Hürde in der Nähe von 595 USD, XRP ist in Richtung der Unterstützung von 0,435 USD gefallen.
XLM, AAVE und ADA sind gefallen, DOT und SUSHI bewegen sich nach oben.

In den vergangenen Sitzungen handelte der The News Spy in einer Spanne unterhalb des Hauptwiderstandsniveaus von 19.500 USD. Auf der Unterseite blieb BTC in der Nähe des Niveaus von 19.000 USD gut geboten. Der Preis steigt derzeit (05:00 UTC) und könnte einen weiteren Versuch unternehmen, ein zinsbullisches Momentum über 19.500 USD zu erlangen.

In ähnlicher Weise nähern sich die meisten wichtigen Altcoins wichtigen Hürden, einschließlich Ethereum, Litecoin, EOS, XLM, LINK, BNB, TRX, Bitcoin Cash und ADA. ETH/USD könnte sich erholen, wenn es einen klaren Ausbruch über 595 USD und 600 USD gibt. Auf der anderen Seite fiel XRP/USD um mehr als 10 % und wurde sogar in der Nähe der Unterstützung von 0,435 USD gehandelt.

Gesamtmarktkapitalisierung

Bitcoin-Preis

Es gab einen erneuten Anstieg des Bitcoin-Preises über den Widerstand von USD 19.200. BTC testete erneut die Widerstandszone von 19.500 USD und konsolidiert nun in der Nähe der 19.400 USD-Marke. Bei einem Durchbruch nach unten unter die Niveaus von 19.320 USD und 19.240 USD könnte der Preis die Unterstützung im Bereich von 19.000 USD wieder aufsuchen.

Auf der Oberseite müssen die Bullen oberhalb der Marke von 19.500 USD an Stärke gewinnen. Ein erfolgreicher 4-Stunden-Schlusskurs über dem Niveau von 19.500 USD könnte vielleicht eine starke Aufwärtsbewegung in Richtung 20.000 USD oder sogar höher auslösen.

Ethereum-Preis

Der Ethereum-Preis unternahm einen weiteren Versuch, den Widerstand von USD 595 zu überwinden, scheiterte jedoch. ETH handelt jetzt oberhalb des Unterstützungsniveaus von USD 580. Die nächste wichtige Unterstützung liegt in der Nähe des Niveaus von USD 575. Weitere Verluste könnten den Preis in Richtung des Niveaus von 555 USD führen.

Bei einem erneuten Anstieg könnte der Preis auf Hürden in der Nähe von USD 595 stoßen. Ein klarer Ausbruch über 595 USD und 600 USD ist für eine starke Rallye erforderlich.
Bitcoin-Cash-, Litecoin- und XRP-Preis

Der Bitcoin-Cash-Preis gewinnt oberhalb des Widerstands von USD 280 an Schwung. BCH ist um über 5% gestiegen und bewegt sich auf die 290 USD-Marke zu. Der Hauptwiderstand auf der Oberseite liegt in der Nähe des Niveaus von 295 und 300 USD. Ein klarer Durchbruch über die 300-USD-Barriere könnte die Gewinne in Richtung 320-USD-Niveau beschleunigen.

Litecoin (LTC) konsolidiert sich in der Nähe des Unterstützungsniveaus von USD 80,00. Ein Durchbruch nach unten unter das Niveau von USD 80,00 könnte einen Schub in Richtung des Unterstützungsniveaus von USD 76,50 auslösen. Umgekehrt könnte eine klare Bewegung über das Niveau von 81,20 USD und 82,20 USD den Preis in Richtung des Niveaus von 85,00 USD führen.

Der XRP-Preis hat sich unterdurchschnittlich entwickelt und ist um über 10 % gefallen. Der Preis handelte unter vielen wichtigen Unterstützungen in der Nähe von 0,485 USD und 0,465 USD. Er sprang sogar unter das Niveau von 0,450 USD und wurde nahe dem Niveau von 0,435 USD gehandelt. Er erholt sich derzeit, aber die Bullen könnten in der Nähe von USD 0,468 und USD 0,475 zu kämpfen haben.

Andere altcoins Markt heute

In den vergangenen Stunden drehten mehrere Altcoins nach unten, darunter XLM, AAVE, ADA, OMG, XEM, UNI, RSR, EWT und MKR. Umgekehrt sind DOT und SUSHI gestiegen und liegen über 4% im Plus.

Insgesamt könnte der Bitcoin-Preis einen weiteren Versuch unternehmen, die 19.500 USD-Marke zu überwinden. Wenn BTC dies gelingt, könnte es eine starke Aufwärtsbewegung geben. Wenn nicht, könnte der Preis in naher Zukunft nach unten in Richtung USD 19.000 oder sogar USD 18.800 korrigieren.

Nowoopisany atak „blockchain denial of service“

Nowoopisany atak „blockchain denial of service“ mógłby przekonać górników do zaprzestania wydobycia.

  • Naukowcy znaleźli nieznany wcześniej sposób na „zatrzymanie łańcucha blokowego“.
  • Tak zwany atak BDoS wymaga tylko 21% mocy wydobywczej sieci.

Naukowcy znaleźli nieznany wcześniej sposób na przeprowadzenie ataku typu denial-of-service na system blokad typu proof-of-work.

Naukowcy z Cornell Tech i Technion Israel Institute of Technology opisali Bitcoin System ten atak, który nazywają blokowym systemem typu denial of service (BDoS) w nowym artykule naukowym, który zaprezentowali 20 października na konferencji ACM SIGSAC 2020 na temat bezpieczeństwa komputerów i komunikacji.

Mówią oni, że BDoS jest pierwszym rodzajem ataku typu blockchain, który „wykorzystuje mechanizm nagradzania, aby zniechęcić górników do udziału“.

Tradycyjne ataki DoS są zazwyczaj wymierzone w serwery internetowe takich organizacji jak banki, firmy medialne lub dostawców infrastruktury internetowej. Atakujący bombarduje serwery ruchem spamu, przeciążając go i uniemożliwiając obsługę uzasadnionych żądań.

Jednak atak DoS jest trudniejszy w przypadku sieci zdecentralizowanej. Według autorów, atak DoS nigdy nie został pomyślnie przeprowadzony przeciwko znanemu systemowi kryptokurwalutowemu.

Przed nowymi badaniami sądzono, że będzie to wymagało od atakującego uzyskania co najmniej 51% zdolności wydobywczej sieci. Według naukowców, odkryty przez nich atak BDoS teoretycznie byłby w stanie „zahamować łańcuch blokowy (Bitcoin’a) przy znacznie mniejszych zasobach“ – zaledwie 21% mocy wydobywczej sieci (od marca 2020 r.).

Atak działa poprzez ukierunkowanie systemu nagród w sposób, który zniechęca górników do udziału. W szczególności, atakujący publikuje w łańcuchu blokad dowód, który sygnalizuje innym górnikom, że posiada on przewagę górniczą.

Badacze odkryli, że to, co definiują jako „racjonalne“ górnictwo, przestanie być górnikiem, jeśli wykryją, że jest w niekorzystnej sytuacji. „Jeśli spadek rentowności jest na tyle znaczny, że wszyscy górnicy przestaną wydobywać, napastnik również może przestać wydobywać“, piszą. “

Łańcuch blokowy zostaje w ten sposób całkowicie wstrzymany

Autorzy badania dodają: „Stwierdzamy, że wrażliwość Bitcoin’a na BDoS gwałtownie wzrasta w miarę dojrzewania przemysłu wydobywczego i spadku rentowności.“

Według Ittay Eyal, starszego wykładowcy Technion, który jest współautorem studium, ataki BDoS różnią się od rodzaju ataku zwanego samolubnym wydobyciem, w którym atakujący manipuluje systemem, aby uzyskać więcej, niż wynosi jego sprawiedliwy udział w nagrodach. W przypadku ataku BDoS celem napastnika jest obalenie kryptokuranty dowodu pracy, a nie zdobycie nagród.

Eyal powiedział, że wyniki badania odnoszą się konkretnie do Bitcoin, ale to jest prawdopodobne, że są podobne ataki na Ethereum. Badacze nie zebrali jeszcze żadnych konkretnych wyników w tej sprawie, powiedział.

Próbują też kontynuować charakteryzowanie ataku BDoS. „Nadal mamy wiele otwartych pytań“, powiedział Eyal. „Jaki jest minimalny możliwy koszt ataku? Jakie są sposoby na złagodzenie skutków?“

La senatrice eletta degli Stati Uniti Cynthia Lummis vuole che il Congresso lasci da solo Bitcoin

Il senatore eletto degli Stati Uniti ed ex tesoriere dello stato del Wyoming Cynthia Lummis afferma che gli stati dovrebbero aprire la strada nella creazione di politiche che consentano a Bitcoin Profit di funzionare nel modo in cui è stato progettato.

In un’intervista con Peter Chawaga di Bitcoin Magazine, Lummis spiega perché ritiene che il governo federale dovrebbe passare in secondo piano e dare agli stati libero sfogo per innovare nei mercati di Bitcoin e criptovaluta

“La cosa divertente degli stati è che quando si vedono innovare, tendono a imitare, e poi vedrai che l’innovazione potrebbe decollare in una direzione diversa in uno stato diverso. Sono fermamente convinto che gli stati rappresenteranno il giusto livello di governo, il luogo giusto per l’innovazione. Ecco perché voglio tenere a bada il governo federale e lasciare che gli stati funzionino con le loro capacità più imprenditoriali e agili „.

Lummis dice che ha intenzione di spiegare ai colleghi legislatori perché dovrebbero evitare di regolamentare eccessivamente il nascente mercato.

“Quindi il mio primo obiettivo è [quello di] tenere a bada il governo federale. Fate loro sapere che questa non è un’area in cui hanno bisogno di regolamentare, e lasciate che gli Stati siano gli incubatori di innovazione e permettete che l’innovazione venga incubata e coltivata qui …

Penso che ci siano molti malintesi su Bitcoin, ma penso che la nostra presenza nel Senato degli Stati Uniti possa aiutare a tenere a bada le cose a livello legislativo

La sfida sarà tenere a bada la regolamentazione nel ramo esecutivo, e poiché non sappiamo ancora come sarà il ramo esecutivo, certamente la struttura finanziaria, i modi in cui le nostre leggi finanziarie vengono attuate attraverso ordini o tramite regole. Queste saranno le aree che dovremo osservare e monitorare „.

I risultati dello stato del Wyoming nell’innovazione di Bitcoin sono un ottimo esempio di ciò che gli stati potrebbero fare quando il governo federale consente loro di innovare, afferma Lummis.

„Nella mia vita, [il] governo statale è sempre stato il decisore politico più innovativo, agile e creativo rispetto al governo federale, e quindi vedo che ciò sta accadendo nel mio stato d’origine, il Wyoming.“