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1.Cryptocurrenciesandtheireconomicessence
formofaninnovativecryptographicmechanism(anencryptionalgorithm)andof
theblockchaininsteadofthetrusttotheintermediary(Nakamoto,2008,p.1;Tu&
Meredith,2015,pp.281,282;Xethalisetal.,2016,p.7).
Thefoundationformakingsettlementsincryptocurrencies’systemsisthealgorithm
employedinconfirmingthetransactions(thevalidatingsystem).Atpresenttwo
solutionsdominatehere:proof-of-workandproof-of-stake.Theformerrequires
theinvolvementofsignificantcomputingpowerintheprocessofencryptingand
archivingtransactions,thelatterisbasedonthecollectionofthelargestamountsof
agivencryptocurrencybythenetworkparticipants,whichgivespriorityinapproving
transfersandobtainingremunerationforthis.Proof-of-stakealsoseemstobemore
resistanttomanipulationinthecaseofaccumulatingsufficientlyhighcomputing
power,andalsohaslowerenergyconsumptionandispotentiallyfaster.Thesystems
ofcryptocurrencies,apartfromthisfundamentalfeature,differinencryption
methods(theso-calledhashingalgorithms,e.g.SHA-256,Ethash,Scrypt,Equihash,
Cryptonight,X11)whichhavevarioussecurityparameters,thedifficulty(which
determinesthescaleofsophisticationofhardwarerequiredfor“mining”),andthe
levelofprocessingcosts.Thesupplyofcoinsisalsodiversified-itcanbeboth
fixedandchangeableovertime.Inadditiontoprovidingsettlementpossibilities,
mostofthesystemsalsohaveadditionalfunctions,ofbothinformationtechnology
(applicationdevelopment)andeconomicnature(trade)(ECB,2015,pp.10,11).
Theprocessofcreatingmoreandmorenewcryptocurrenciesisfacilitatedbythe
opensourcecodeofthebitcoin,whichmeansthattheentrybarrierstothemarket
ofdecentralisedpaymentservicesarenegligible,andthemotivationbythevision
ofrepeatingthesuccessoftheprogenitor-veryhigh(Michalczyk,2018c,p.244;
Wiśniewska,2016,pp.4,5).Thereasonsoftheinundationofaltcoinsincludealso
theattemptstoeliminatethebitcoin’sweaknesses(suchashighenergyconsumption
andoccasionalslowdownsinvalidatingtransactionsorincreasesintheircosts)and
thedesiretoissueitssubstitutesfor“mining”andstoringvalue(ECB,2015,p.9).
Theincentiveforseekingsolutionstoeliminatefinancialinstitutionsfromsettlement
systemswasprimarilythereductionofcostsoftransfersandtheintroductionof
acheapmicropaymenttool(Kubasik,2017,p.108;Nakamoto,2008,p.1),but
certainlytherewasalsoacontributionfromthegrowingreluctancetowardsthe
bankingsystemcompromisedbytheglobalfinancialandeconomiccrisis.This
seemstobeconfirmedbythemomentofthecreationandimplementationofthe
bitcoin’sconcept,i.e.theyearsof2008and2009.Oneshouldrememberaswellthe
risingscaleofnetworkinginsocialrelations,economyandtrade(Piotrowska,2014,
p.276),resultinginthedevelopmentofnetworksettlementsystems.Itshouldbe
emphasised,however,thatalthoughcryptocurrencieseliminatetheneedfortrusted
financialinstitutionstoparticipateintransactions,thehighdegreeofcomplexityof
theirmechanismsmeansthattheaverageusersoftheseinnovationsmustatleast