2018全球区块链技术大会blc summit book10popo新一代高速网dexon

1、来自全球一线大咖实力！扫码关注服务号回复“BLC2018”回顾大会嘉宾大会PPT合辑“博览Boolan”服务号The Next Generation Blocklattice TechnologyEmpowering the Decentralized FuturePOPO CHEN, Founder of DEXON FoundationPOPO CHENSerial EntrepreneurM17 Entertainment Founder, Success Exit at 200M USD Valuation COBINHOOD Founder, Worlds First Zero Fe

2、e Cryptocurrency ExchangeDEXON Foundation Founder, Developing Next Generation Blockchain TechnologyParadigm ShiftInternet of InformationInternet of Economics Information Flow Funds transfer secured through trust in a third party No transparency Middleman business mis eliminated Full accountability a

3、nd transparency Funds transferred directly through blockchainThe DApps Booming is Coming2018DApps2008Mobile Apps1991Websitest.me/dexon_Bottlenecks of Existing Blockchain SystemsInnovatorsEarly AdoptersEarly MajorityLate MajorityLaggards“The Chasm”Low ScalabilityHigh Transaction La

4、tencyHigh Transaction FeesEnergy InefficiencyNot Truly Decentralized2.5%13.5%34%34%16%t.me/dexon_DEXONCONSENSUSDEXON Foundationt.me/dexon_Why DEXON?INFINITELY SCALABLE AND LOW-LATENCYt.me/dexon_foundationWhy DEXON?FULLY DECENTRALIZED AND ENERGY-EFFICIENTt.me/dex

5、on_foundationComparisonsBitcoinEthereum“Next Gen”DEXONTPS7 TPS30 TPS250 TPS TPS1sLatency1-6 hrs5-10 min5-60 sTX Fees10-50 USD1-5 USD0.1-0.5 USD0.0000001 USDt.me/dexon_System M Totally n nodes, # of Byz Network M Fully asynchronous Cryptographic Primitives Collision-free hash funct

6、ion A random oraclenodes 0, Byznodes cannot delay the latency with high probabilityExperiment with Byznodes, number of total nodes = 19,proposing time is 0.2 (left) and 0.5 (right) second and network latency is 0.25 secondDEXON Consensus Design Total OrderingNACK MechanismMake the output latency and

7、 liveness of the algorithm resistant to fail-stop nodes and Byznodes1/3 nodes fail-stopExperiment on fail-stop with NACK with Byznodes, number of total nodes = 19,proposing time is 0.5 second, network latency is 0.25 second.There are 6 fail-stop nodes fail and stop at 15th second.DEXON Consensus Des

8、ignReliable BroadcastTotal OrderingTimestampingDEXON Consensus Design TimestampingA time vector is generated for each block B on the total-ordered chain.The i-th entry of the time vector is the first i-th node proposed blocks block time or the ack time to a block proposed by the i-th node by travers

9、ing from block B toward genesis block.All entries of time vectors are monotonically increasing.t4,0, t4,1, t4,2, t4,3, t4,4t3,0, t3,1, t3,2, t3,3, t3,4t2,0, t2,1, t2,2, t2,3, t2,4t1,0, t1,1, t1,2, t1,3, t1,4t0,0, t0,1, t0,2, t0,3, t0,4DEXON Consensus Design TimestampingMedian 4, 6, 6, 3, 7 6Median 3

10、, 5, 5, 3, 5 2, 5, 4, 3, 4 1, 3, 3, 2, 2 1, 3, 2, 1, 0 5Median42.5MedianMedian1Consensus TimestampMedian of the time vector ismonotonically increasingDEXON Consensus Design TimestampingGiven n clocks with n/3 biased clocks, how to get a correct time?Average of the time is biased too much.But the med

11、ian wont be biased!10:0008:3208:3108:3008:2810:0008:3108:2808:3208:30Tolerance of ByznodesGlobally eventually consistent blocklattice No forks are possibleGuarantees safetyReliable BroadcastFail-stopby NACK mechanismTotal OrderingGuarantees livenessUnbiased consensus timestamp Unbiased random oracle

12、 Linearly scalable via shardingTimestampingPerformanceLatency 2Ttransm t + (k+1)Tp oposingTX confirmation latency is around 1 secondExperiment on the influence of network delay and proposing interval, number of total nodes = 19,(left) proposing time is 0.5 second and (right) network latency is 0.25

13、secondPerformanceTPS (#node / T) * (#TX per Block)transmitThroughput grows linearly with the number of nodesIf 100 bytes per transaction & 1MB per block 50 blocks/sec 500k TPSExperiment with Byznodes, number of total nodes = 19,(left) proposing time is 0.5 second and (right) network latency is 0.25

14、secondInfinitely Scalable ShardingHorizontally Scalable via Sharding：Single Shard 1M TPS100 Shardst.me/dexon_6542.516542.516542.516542.51DEXON Consensus DesignHigh throughputReliable Broadcast25 nodes can reach 500k+ TPSLow latencyaround 1 secondTotal OrderingByzfault toleranceLiv

15、eness and latency of the algorithm isresistant to ByzbehaviorLow bandwidth / computation overheadTimestampingDEXON DApps Mass Adoption Ready!InnovatorsEarly AdoptersEarly MajorityLate MajorityLaggards“DEXON”2.5%13.5%34%34%16%t.me/dexon_System ArchitectureBusiness LogicInterfacePro

16、tocolIt.me/dexon_foundationStorageP2P NetworkCryptographyCryptoeconomicsDEXON ConsensusDistributed LedgerDEXON Smart Contract Platform / DEXON VMAsset TradingInter-Chain Asset TXs BridgingAsset IssuanceAccount System / Role-Based Access ControlDEXON Smart Contract ABI / DEXON L

17、edger APIICOCryptocurrencyGovernanceDAppsInterchain OperabilityAssets Trading ProtocolAssets BridgingProtocolTransaction Bridging Protocolt.me/dexon_Bridge Ct.me/dexon_foundationDEXON Assets Exchange Pt.me/dexon_foundation2018/Q3DEXON consensus algorithm, simulation results, DEXON consensus engine SDK and PoC.2018/Q4Launches testnet, explorer, and wallet.2019/Q1DEXON mainnet goes live.Future Decentralized Storage Network Decentralized Messaging Network (Pub-Sub) Private Smart Contract Execution Private Transactions Post-