KeyInsights
●AptosandSuiareinthespotlightbecausetheyarebuiltonMove,aprogramminglanguageinspiredbyRustandtheircoreteamisfromMeta–Diem.●TheAptostestnetcanreachupto160,000TPSandisbasedontheBlock-STMparallelexecutionengineandthecriticalrotation.●Sui’stestnetworkTPScanreachabout120,000becauseitusesObjectsasabasicunitoptimizingitsthroughput.Also,Sui'sGaspricingandtransactionstoragemechanismcanbringabetterexperiencetousersanddevelopers.●AptosisfaraheadofSuiintermsofitsecosystemdevelopmentanddevelopmentprogress.●AptosandSuistillneedtogetmoreinfluentialpartnerstohelpthemsurviveinthecurrentmarket.
1.Introduction
Theyear2022seesabearmarketwiththemajorityofcryptocurrenciesplummetingduetoabunchofmacroeconomicfactorssuchasinflationandrisingunemploymentetc.However,insuchasluggishmarket,AptosandSuisuddenlymadethemthecenterofattentioninthecryptospace.Inthepasttwoyears,Solana,Avalanche,andotherEthereumkillersappearedinthemarketoneafteranotherandbroughtsignificantmarketinfluence,butnoonecantakeEthereum’splace.AsEthereumcontinuouslyupgradesitselfwiththerecentcompletionoftheMerge,otherchainsseemtohavenothingnewtoboastabout.EvenafterDfinitylauncheditstokenICP,awidespreadopinionisthattheblockchainwouldnolongergetanylovefromthemarket.However,AptosandSui,whomtopVCssprintedtowards,havebrokenthisnarrativewiththeMovelanguageadoptedandtheteamhailingfromDiem.1.1.TheMoveprogramminglanguage
Let'slookatMovefirst.ThemoveisaRust-basedprogramminglanguageforsmartcontractsandcustomtransactions,whichachievesextremelyhighthroughputandlowlatencythroughbatch,pipelined,andparalleltransactionprocessing.OverallthestrengthsoftheMovelanguagearesecurityandcomposability.1.1.1.DefinitionofAsset
Movedefinestokensasresources,unlikeotherprogramminglanguages,suchasSolidity,whichgenerallyseestokensasNumericvariables.Thedifferencebetweenthetwoisthatwhenatransactionoccursintheaccount,theMovelanguagebelievesthatthetokenmusttransfertoonecertainaddressoranother,orelseitwouldbeburned.Tokenasanassetcannotbecopiedordoublespent.LanguagessuchasSolidityconsiderassetstobedigital,sofromthemomentofthetransactiontotheend,thebalanceofthesentandreceivedaddressdecreasesorincreases.Move'sdefinitionofResourceavoidstheproblemofassetsbeinggeneratedoutofnowherebycodelogicandalgorithmerrorsfromtheverybeginning.1.1.2.Staticdispatch
Asinglesmartcontractcannotimplementallfunctionsforsomelargeprojects,sodynamicdispatchhasbecomethemaincallingmethodofSolidity.Thedynamicdispatchstoresthecodeinthelibraryaccordingtotheclassificationandusestheinterfacecallwhenthecontractneedsit,butthishasalsobecomeabreakthroughinthesecurityofthesmartcontract.Dynamicdispatchimprovesflexibility,butflexibilitymeansmorebugs.Incontrast,Moveusesstaticdispatch,whichischaracterizedbythefactthatallcontractshavealreadydeterminedtheirexecutionpathsandverifiedthemduringthecompilationphase,whichmeansthatdeveloperscanidentifyerrorsandexecutesmartcontractsbeforegoingonlineandreducetheprobabilityofdowntimeatruntime.1.1.3.Combinabilityofmodules
Themoveisbasedonthecombinationofmodulesandtheninteractswitheachotherthroughresourcepassing,whileSoliditymainlyreliesonthecombinationthroughmessagepassingunderremotecalls.Thedifferencebetweenthetwoisthatwhenoptimizationorextensionisneeded,inMove,onlythemoduleneedstobeoptimizedandthenthesmartcontractsusingthemodulewillbeautomaticallyupdated,whileinSolidityifthepreviouscontractisoptimized,itcannotbedirectlyupgradedanditerated.
1.2.TheriseandfallofDiem
In2019Facebook(nowMeta)startedLibra,ablockchain-basedpaymentsystemforlicensedstablecoins.However,itwaslaterforcedtorenameDiem,butitstortuousfatedidnotchangeatallwithitsnamechange.RegulatorsfromUSandEUforceittosuspendonthegroundsofinvasionofantitrustlawsandprivacy.Asaresult,severalqualifiedtechnicalstaffbegantoleavetheproject,includingMoShaikhandEvanCheng,wholatersetuptheirteamsandlaunchedAptosandSuiseparatelybasedonDiem.
2.AptosvsSui
2.1.TeamMostoftheAptosandSuicoremembersarefromNoviandDiemofMeta.BlockchainveteransworkingtogethermakeiteasyforAptosandSuitorisesoquickly.
2.2.Investors
AptosandSuiarebackedbyanall-starcast,andthefundraisingforthefirsttworoundshasreachedaverylargescale,at$350millionand$236millionrespectivelywithAptosslightlyahead.Aptos
AsofSeptember2022,Aptoscompletedtwofundraisingroundsata$2.75Bvaluation.BinanceLabsandDragonflyannouncedstrategicinvestmentsinAptosonMarch28andSeptember29,respectively,butthespecificcooperationandinvestmentamounthavenotbeendisclosed.SeedRoundDate：2022.3.15TotalAmountRaised：$200MInvestors:Leadbya16z,otherinvestorsinclude:MulticoinCapital,KatieHaun,3ArrowsCapital,ParaFiCapital,IRONGREY,Hashed,Variant,TigerGlobal,BlockTower,FTXVentures,Paxos,CoinbaseVentures,etc.ARoundDate：2022.7.26TotalAmountRaised：$150MInvestors:LeadbyFTXVenturesandJumpCrypto,otherinvestorsinclude:GriffinGamingPartners,FranklinTempleton,CircleVentures,Superscrypto,etc.Sui
SinceDecember2021,MystenLabs,thedevelopingteamSuihasraisedtworoundsoffundingatavaluationof$2billion,andSuicurrentlyexpectstoraise$236million.ARoundDate：2021.12TotalAmountRaised：$36MInvestors:a16zandNFX,CoinbaseVentures,Lightspeed,SamsungNEXT,ScribbleVentures,Redpoint,ElectricCapital,SlowVentures,StandardCrypto,etc.BRoundDate：2022.7TotalAmountRaised：$200MInvestors:LeadbyFTXVentures,otherinvestorsinclude:a16z,JumpCrypto,Apollo,BinanceLabs,FranklinTempleton,CoinbaseVentures,CircleVentures,LightspeedVenturePartners,SinoGlobal,DentsuVentures,NGCVentures,A&TCapital,GreenoaksCapital,O'LearyVentures,etc.2.3.TechniquesandMechanism
AptosandSuiarebothbasedontheMoveprogramminglanguageandfocusonhigh-performanceparallelcomputingblockchain,whichclaimstobeabletoreachover100,000TPS.2.3.1ParallelExecution
BothAptosandSuiadoptparallelexecution.ThedifferencebetweenthisandEthereum'sEVMisthatitidentifiesindependenttransactionsandexecutesthematthesametime,whileotherinterdependenttransactionswillbepickedoutandexecutedinsequence.ThemechanismofEVMiseachtransactionisexecutedindividuallyinorder,andwhentheEVMexecutesthetransaction,alltherestwillbesuspendeduntilonetransactionexecutioniscompleted.TheproblemwiththeEVMmechanismisthatitgreatlyprolongsthetransactionexecutiontime,andusersareforcedtoincreasethegasfeetoexecutethetransactionearlierthanothers.Incontrast,parallelexecutioncanusehardwaremoreefficientlytoreducetransactionconfirmationtimeandachievebetterscalability.Thedifficultyfacedbyparallelexecutiontechnologyishowtoquicklyidentifyindependenttransactionsanddependenttransactions.Whenexecutinginparallel,itisnecessarytojudgewhetheratransactionwillaffectanothertransaction.Ifitaffects,itisdefinedasbeingdependent,anddependenttransactionsmustbeexecutedinorder.Forexample,AMMtransactionsinthesamepoolaredefinedasdependent,becausemultipledifferenttokensandaccountsareinvolvedintheirtransactions.Thewaytoidentifyindependenttransactionsiswhenanaccountorsmartcontractmodifiesitsmemorylocationswhenatransactionoccurs,andinterdependenttransactionsarethosethatattempttochangethesamememorylocationsinthesameblock.AptosAptosdevelopedBlock-STMtoidentifythedependenciesoftransactions,whichisthemainfactorforAptos'maximumTPStoreach160,000.Block-STMchoosesnottoletusersanddevelopersknowinadvancewhichpartofthememorytheyarelocatingbutinsteadusesOptimisticConcurrencyControl(assumingalltransactionsareindependent)tovalidatewhenBlock-STMexecutestransactions,andthestoragelocationmodifiedinthetransactionwillbemarked.Inthevalidatingphase,ifitisfoundthatthemarkedstoragelocationisaccessedbyothertransactions,itmeansthatthetransactioninthisstoragelocationisnotindependent,andthesystemwilltakeitoutandre-executeitinsequence.AccordingtotheofficialtestdataofAptos,whenthetransactionsarefewer,theexecutionspeedofBlock-STMis16timesfasterthanthatofsequentialexecutionusing32threads,andwhenmoretransactionsexecuteatthesametime,thespeedofBlock-STMisalso8times.DataSource：https://medium.com/aptoslabs/block-stm-how-we-execute-over-160k-transactions-per-second-on-the-aptos-blockchain-3b003657e4baSuiSuihasoptedforadifferentapproachthanAptoswhenitcomestotransactionprocessing.InSui'smechanism,anObjectisusedasthebasicunitinsteadofanAccount,andeachobjecthasauniqueIDasidentification.Objectsareclassifiedintothreetypesofassets,namelyimmutableassets(smartcontracts),singleassets(whichcanonlybemodifiedbytheirspecificowner),andsharedassets(whichcanbemodifiedbymultipleowners).Asingleassetcanonlybemodifiedbyitsspecificowner,whileasharedassetcanbemodifiedbymultipleowners.Thissettingreducesthedifficultyofidentifyingindependenttransactionsordependenciesbecauseassettypescanbequicklyidentifiedandconfirmedwhentheyareindependentlytraded.2.3.2.OtherMechanism
AptosHybridCustodyOptionandTradePre-ExecutionMechanismSecurityissuessuchaswallettheftandwronglysigningmalicioustransactionshavealwaysbeenthenightmareofmanyusers.Therefore,Aptoshaslaunchedtwofunctions,keymanagementandsigningtransactionprecautionarymeasures,toprotectthepropertysafetyofitsusers.AccordingtotheAptoswhitepaper,Aptosaccountssupportkeyrotationandnewhybridmodelsofcustody,souserscandelegatetheabilitytorotatetheaccount’sprivatekeytooneormorecustodiansandothertrustedentities.ThentheusercandesignastrategythroughMove,thepurposeofthisstrategyistoallowthecustodiantorotatethekeyundercertaincircumstances.Thebenefitofthisisthatwhenauserloseshiskey,thecustodiancanrestoretheserviceforhiskeytoavoidlossofassets.Inaddition,thetransactionpre-executionandtransactionrestrictionservicesarealsousedbyAptostoprotectthesecurityofuserassets.Whenuserssignatransaction,Aptoswillprovidethemwithtransactionresultsandcompareknownattacksandmalicioussmartcontractsinthepast,therebyreducingtheprobabilityofusersbeingdeceived.Anduserscanalsosetlimitsontransactionssothatwhenmalicioustransactionsviolatetheserules,thetransactionwillbeterminated.SuiGaspriceandTransactionstoragemechanismThehighlightofSui'seconomicmodelisthepricingmechanismofGasandthestoragefund.ThepricingmechanismgivesusersabetterexperiencebecausetheydonotneedtopredictthecostofGas,andthevalidatorscanproposetheiridealpriceofGasforvoting,andeveniftheidealpriceisnotreached,theincentiverewardscanstillbringthemobjectiverevenue,thusreducingunhealthycompetition.andpreventdenialofservice(DoS)attacks.Thebenefitsofthestoragefundarethreefold.First,itsolvestheproblemofstoragecostsforvalidators.Second,aself-regulatingmechanismisdevelopedforSui'son-chainstorage,andvalidatorsconsciouslydeleteuselessdata.Third,itincreasesthedemandfortheuseofSuitokens,thusreducingitsinflation.1)Gaspricingmechanism,wherevalidatorsdetermineareferenceGaspricebyvoting,whichisusedasareferencepricewhenthevalidatorprocessesusertransactions.WhenavalidatorcompletesavalidationrequesttoobtainaGascostaroundthereferencepriceitwillreceivearewardfromSui,exceedingthepriceandnon-responsivevalidatorswillreducetherewardtheyreceive,andconversely,validatorsbelowthereferencepricewillreceiveanadditionalreward.2)Transactionstorage,whichisdesignedtosolvetheproblemoffutureuserspayingforthestorageofearlyadopters.SinceSuicanhandleanyamountofdataonthechainwhensubsequentusersusethesamedatastoredbypastusers,subsequentusersmayhavetopaydisproportionatelyhighstoragefeesforthem,andthisnegativenetworkexternalitywillputalotofpressureonSuiinthelongrun.Thestoragefeesaredepositedinthefundfordistributiontofuturevalidators.Inaddition,a"deletionoption"mechanismisdesignedsothattheverifieronlyneedstodeletethedatastoredinthechaintogetarebateonthestoragefee.2.4.Tokenomics
JustonedaybeforeAptosannounceditsofficialtokenomics,thedetailsofwhicharestillwaitingfortheofficialupdate.ItisworthnotingthatthecurrenttokenomicsofSuidoesnothaveaburningmechanism,whichmightharmthetokenvalueretention.However,Sui'sstoragefundmechanismhasreducedtheinflationofSuitokenstoacertainextent.DataSource：1.https://medium.com/mysten-labs/recap-sui-ama-tokenomics-ca00967b937d2.https://aptosfoundation.org/currents/aptos-tokenomics-overview2.5.ProductProgress
Fromtheperspectiveofdevelopmentprogress,AptoswithitsthirdnetworknestsurpassesSuiatthispoint.2.6.PotentialRisks
OnMay20,2022,awell-knownAmericanentrepreneurandinvestorShariGlazersuedMohammedShaikh,founderofAptosLabs,allegingthatShaikhcheatedheroutof50%ownershipofthepartnership.Thecasehasnotyetprogressed,andifitdoes,itwillhaveasignificantimpactonMohammedShaikh,butitdoesnotinvolveAptosatthistimeandthereforewillnothaveanysignificantimpactonit.Incontrast,Suihasnothadanynegativenewsonthelegalfront,soitispotentiallylessriskythanAptos.2.7.Token
APT(Aptostoken)waslistedonOctober19,2022.AccordingtoCoingecko,APTiscurrentlypricedat$7.38witha24-hourtradingvolumeof$1,007,472,882whilethisarticleisbeingedited.TheexchangesAPThadlistedincludeGate.io,Binance,FTX,Coinbase,OKX,Kucoin,Huobi,Bybit,MEXC,etc.Drivenbymarketenthusiasm,thetradingvolumehasbeenataveryhighlevel.Incontrast,Suiisfarbehind,withnoofficialannouncementofanytokensgoingonthelistatthismoment.3.EcosystemDevelopment
3.1.ThenumberofprojectsdeployedonAptosvsSui
AccordingtotheofficialplanreleasedbyAptosonJune29,statisticsshowthattherearecurrentlyover100projectsbeingbuiltinitsecosystem,comparedtoSui'scurrentslowdevelopmentprogress,withthenumberofknownprojectsintheecosystemcurrentlyataround20.Intermsofecosystemlayout,Aptosmainlyfocusesoninfrastructure,andmostoftheDappsintheecosystemcurrentlyareDefi,DEX,anddigitalwallet,whileSuihasnotfoundanobviouslayoutyet.ApointworthnotingisthatthemainstreamapplicationsintheblockchainmarketarecurrentlydevelopedbasedontheSoliditylanguage,whichisnotcompatiblewiththeMovelanguageusedbyAptosandSui.Thismeansthatiftheprojectwantstobuildintheecosystemofboth,developersneedtorecode,whichmayreducetheefficiencyofbuildingapplicationsinbothecosystems.3.2.ProjectDevelopmentProgressonAptosvsSui
Atpresent,thereareasmanyas11projectsintheAptosecosysteminthetestnetworkstage,whileSuicurrentlyhasonly5.Inaddition,therearemoreprojectsintheAptosecosystemwithgreenlightbytopVCs,includingPontemNetwork,whichisrepresentedbystarbackerssupportingandateamwithatechnicalbackground.PontemWalletandLiquidswaphavealreadyenteredthetestnetworkstage.
4.BlockchainTrilemma
TheemergenceofAptosandSuihasbroughtsomeinnovationstosolvetheimpossibletriangleproblemofblockchain.ScalabilityBothofthemhavemadesignificanttechnicalinnovationstoimprovescalability,whichisoneoftheirbiggestadvantagesoverotherblockchains.Aptos'Block-STMandAptosBFThavegreatlycontributedtoitstestnetworkTPSof160,000,whileSui'suniqueassetdefinitionandconsensusmechanismhaveenableditstestnetworkTPSof125,000.SecurityTheuniquenatureoftheMovelanguageprovidesbettersecurityforAptosandSui.Inaddition,Aptos'HybridCustodyOptionandTradePre-ExecutionMechanismprovidessecurityforusers'accounts,comparedtoSui,whichhasnotmadeanymajorsecurityfeatureinnovationsexceptfortheMovelanguage.DecentralizationSui'sGaspricingmechanismimprovestherightsofverifierstoacertainextent,butingeneralSuiandAptosdonotofferanyinnovativesolutionstothedecentralizationproblem.5.Summary
Fromtheabove,ThemainadvantageofAptosisthatitsecologicaldevelopmentismuchmoreadvancedthanSui's,butthisisnotenoughtopredictthefuturedevelopmentofboth.ThesimilaritiesbetweenthetwoarethattheybothhaveoriginalDiemdevelopmentteams,bothusetheMovelanguageandhavemadeinnovationsintechnologyandeconomicmechanisms,andbothhavetier-oneinvestorsonboard.Itisdifficulttopredictwhowillperformbetterinpractice,butitiscertainthatthebirthofAptosandSuihasreignitedtheenthusiasmfornewblockchainsinthecommunityandcontributedtotheinnovationoftheblockchain.Noteworthy,ThemaincompetitorofAptosandSuiisSolana,althoughitwasrecentlyaffectedbytheFTXincident,whichcauseditstokenpriceandTVLtodecrease.However,Solanaisstillthebestexampleofatechnicalsingle-chain.TheamountofcustomersitbringstoitsecosystemthroughcooperationwithcapitalandexchangesandthusSolana'stechnicaladvantageshavelongoccupiedthetop5positionsinTVLofblockchain,sobuildingahealthyandhigh-qualityecosystemisalsoanessentialstepforthesuccessfuldevelopmentofblockchain.AptoshaspreviouslyannouncedastrategicpartnershipwithBinance,butBinancealreadyhasaBNBchain,soitisnotsureifAptoscangetmanyusersthroughBinance.Suihasnotannouncedanypartnershipwithexchange,sothereisstillagapbetweenAptosandSuiintermsofecologicaldevelopmentpotentialcomparedtotheircompetitorSolana.Disclaimer
*Thisarticlerepresentsonlytheviewsoftheobserversanddoesnotconstituteanyinvestmentsuggestions.*Gate.ioreservesallrightstothisarticle.RepostingofthearticlewillbepermittedprovidedGate.ioisreferenced.Inallothercases,legalactionwillbetakenduetocopyrightinfringement.Reference
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