Introduction to 0x @1VQ9 2018/08/29 @ GMO Pepabo, Inc.

ࣗݾ঺հ ࢁܗࡏॅ ֶ෦ɺम࢜Ͱ#JPJOGPSNBUJDTΛઐ߈ d όΠΦϕϯνϟʔʹͯࣾ಺Πϯϑϥߏங ࣾ಺γεςϜ։ൃݚڀ։ൃ 1ZUIPO 3VCZ 1FSM +BWB4DSJQU FUD 0QFO4UBDLͷߏஙͱੈ࿩ 4".-*E1 'PSHF3PDL0QFO". ͷߏஙͱੈ࿩ :"1$ 3VCZ,BJHJ @1VQ9

0xProject - Introduction Mission Create a tokenized world where all value can flow freely. Mission statement શͯͷՁ஋͕ࣗ༝ʹߦ͖དྷ͢ΔɺτʔΫϯԽ͞ΕͨੈքΛ࡞Δ (Warren 2018)

&UIFSFVNωοτϫʔΫ্Ͱ&3$τʔ Ϋϯͷަ׵ΛτϥετϨεʹߦ͏ͨΊͷ ϓϩτίϧ ύʔϛογϣϯϨεͰɺ୭Ͱ΋ࣗ༝ʹ࢖ ༻Մೳ ෼ࢄऔҾॴ %FDFOUSBMJ[FE&YDIBOHF %&9 ͷߏஙͳͲɺΞΧ΢ϯτಉ࢜Ͱτʔ Ϋϯͷަ׵Λߦ͏࣌ʹ࢖༻Մೳͳϓϩτ ίϧͱɺϥΠϒϥϦΛఏڙ 0xProject - Introduction Overview

0xProject - Introduction தԝूݖతͳऔҾॴͷ໰୊ தԝूݖతͳऔҾॴ͸ϋοΩϯάͷର৅ͱ ͳΓқ͘ɺϢʔβʔͷࢿ࢈͕ࣦΘΕΔϦεΫ ͕ൺֱతߴ͍ ڧྗͳݖݶΛ࣋ͭ৴པ͞Εͨୈࡾऀ͕հࡏ ͢ΔͨΊɺݕӾ΍ϓϥΠόγʔͷ໰୊͕ى͜ ΔՄೳੑ͕ଘࡏ͢Δ 2016/4 2014/2 2016/8 2018/1 ৴པ͞Εͨୈࡾऀ͕հࡏ͠ͳ͍ɺτϥετϨε͔ͭύʔϛογϣϯϨεʹࢿ࢈ͷ औҾ͕Մೳͳ෼ࢄऔҾॴ͕ඞཁ

0xProject - Introduction ෼ࢄऔҾॴͷ໰୊ ΦʔμʔϒοΫ͕ϒϩοΫνΣʔϯ্ʹଘࡏ ͢Δ෼ࢄऔҾॴͰ͸ɺऔҾྔ͕૿Ճͨ͠ࡍ ʹϒϩοΫνΣʔϯʹෛՙΛ͔͚Δ εϚʔτίϯτϥΫτʹσϙδοτ͢Δ෼ ࢄऔҾॴͰ͸ɺσϙδοτͨ͠ࢿ࢈͕Ϣʔ βʔͷࣗ༝ʹͳΒͣɺ༬͚ͨࢿ࢈͕ࣦΘΕΔ Մೳੑ͕͋Δ ϒϩοΫνΣʔϯʹෛՙΛ͔͚ͣɺϢʔβʔͷࢿ࢈Λ༬͔Βͳ͍ OPO DVTUPEJBM ෼ࢄऔҾॴͷඞཁੑ On-chain order book Deposit to smart contract Deposit to smart contract

0xProject - Introduction Y1SPUPDPM 0⒎DIBJOPSEFSSFMBZ 0ODIBJOTFUUMFNFOU Ϣʔβʔͷࢿ࢈Λ༬͔Βͳ͍ͨΊɺݖݶ͸ৗʹϢʔβʔʹ͋Δ ΦʔμʔϒοΫ͸ϒϩοΫνΣʔϯ্ʹͳ͍ͨΊɺνΣʔϯ΁ͷෛՙ͕গͳ͍ .BLFS͕&3$τʔΫϯͷBQQSPWFΛ࣮ߦ͠ɺ %&9DPOUSBDUʹτʔΫϯ"ͷҠಈΛڐՄ .BLFS͕PSEFSΦϒδΣΫτΛ࡞੒ͯ͠ൿີ伴Ͱॺ ໊͠ɺσʔλΛͳΜΒ͔ͷํ๏ 3FMBZFSͳͲ Ͱڞ༗͢Δ 0SEFSΦϒδΣΫτΛऔಘͨ͠5BLFS͸ަ׵ର৅ͷ &3$τʔΫϯ#ͷBQQSPWFΛ࣮ߦ͠ɺ%&9DPOUSBDU ʹτʔΫϯͷҠಈΛڐՄ͢Δ 5BLFS͕%&9ίϯτϥΫτͷpMM0SEFS"TZODΛ࣮ ߦ͠ɺ%&9ίϯτϥΫτ͕औҾΛ࣮ߦ͢Δ

0xProject - Introduction Y1SPUPDPM YKTFYBNQMF // Unlimited allowances to 0x proxy contract for maker and taker const setMakerAllowTxHash = await zeroEx.token.setUnlimitedProxyAllowanceAsync(ZRX_ADDRESS, makerAddress); await zeroEx.awaitTransactionMinedAsync(setMakerAllowTxHash); // Generate order const order = { maker: makerAddress, taker: ZeroEx.NULL_ADDRESS, feeRecipient: ZeroEx.NULL_ADDRESS, makerTokenAddress: ZRX_ADDRESS, takerTokenAddress: WETH_ADDRESS, exchangeContractAddress: EXCHANGE_ADDRESS, salt: ZeroEx.generatePseudoRandomSalt(), makerFee: new BigNumber(0), takerFee: new BigNumber(0), makerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(0.2), DECIMALS), // Base 18 decimals takerTokenAmount: ZeroEx.toBaseUnitAmount(new BigNumber(0.3), DECIMALS), // Base 18 decimals expirationUnixTimestampSec: new BigNumber(Date.now() + 3600000), // Valid for up to an hour };

0xProject - Introduction Y1SPUPDPM YKTFYBNQMF { "metadata" : { "takerToken" : { "name" : "Wrapped Ether", "decimals" : 18, "symbol" : "WETH" }, "makerToken" : { "symbol" : "ZRX", "name" : "0x", "decimals" : 18 } }, "signedOrder" : { "expirationUnixTimestampSec" : "1535607960", "maker" : "0x00 “, "makerFee" : "0", "feeRecipient" : "0x0000000000000000000000000000000000000000", "takerTokenAmount" : "1000000000000000000", "makerTokenAddress" : "0xe41d2489571d322189246dafa5ebde1f4699f498", "ecSignature" : { "r" : "0xc370fdb353f34c22499dcb299338f7152ab48258d9bafec85c40ff420c58b390", "s" : "0x1f08d374ec972fa4034275c174ac445b8b0a3e9e03b8eab0b2588c203d388ccc", "v" : 27 }, "takerFee" : "0", "makerTokenAmount" : "100000000000000000000", "salt" : "525051204772790397684327286494460896733275278658192814608150085920209666577", "taker" : "0x0000000000000000000000000000000000000000", "takerTokenAddress" : "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2", "exchangeContractAddress" : "0x12459c951127e0c374ff9105dda097662a027093" } } 0SEFS0CKFDUͷྫ

0xProject - Introduction Y1SPUPDPM YKTFYBNQMF // fill͢ΔྔΛܾΊΔ const shouldThrowOnInsufficientBalanceOrAllowance = true; const fillTakerTokenAmount = ZeroEx.toBaseUnitAmount(new BigNumber(0.1), DECIMALS); // fillOrderAsync Ͱfill͢Δ const txHash = await zeroEx.exchange.fillOrderAsync( signedOrder, fillTakerTokenAmount, shouldThrowOnInsufficientBalanceOrAllowance, takerAddress, );

0xProject - 0x Portal https://0xproject.com/portal

0xProject - Relayers ΦʔμʔϒοΫͷϝϯςφϯε΍ྲྀಈੑͷڙڅɺϢʔβʔΠϯλʔϑΣʔεͷఏڙͳ ͲͷαʔϏεΛఏڙ͠ɺख਺ྉΛϢʔβʔ͔Β௃ऩ͢ΔऔҾॴ { ɹ“signedOrder" : { "expirationUnixTimestampSec" : "1535607960", "maker" : "0x00 ", "makerFee" : "0", "feeRecipient" : "0x0000000000000000000000000000000000000000", "takerTokenAmount" : "1000000000000000000", "makerTokenAddress" : "0xe41d2489571d322189246dafa5ebde1f4699f498", "ecSignature" : { "r" : "0xc370fdb353f34c22499dcb299338f7152ab48258d9bafec85c40ff420c58b390", "s" : "0x1f08d374ec972fa4034275c174ac445b8b0a3e9e03b8eab0b2588c203d388ccc", "v" : 27 }, "takerFee" : "0", "makerTokenAmount" : "100000000000000000000", "salt" : "525051204772790397684327286494460896733275278658192814608150085920209666577", "taker" : "0x0000000000000000000000000000000000000000", "takerTokenAddress" : "0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2", "exchangeContractAddress" : "0x12459c951127e0c374ff9105dda097662a027093" } }

0xProject - Shared liquidity pool 3FMBZFSಉ࢜ͰPSEFSΛڞ༗͢Δ͜ͱʹΑͬͯɺΤίγεςϜશମͰͭͷେ͖ͳྲྀಈੑ ϓʔϧΛڞ༗͢Δͱ͍͏Ϟσϧ ͦͷ࣮ݱͷͨΊʹɺ4UBOEBSE3FMBZFS"1*ͱͦͷΫϥΠΞϯτ YDPOOFDU ͕ଘࡏ ͍ͯ͠Δ https://amadeusrelay.org/ https://developer.radarrelay.org/

0xProject - Volume of 0x relayers Relayers 10+ Aggregate volume $200M+ Trades 120K+ 0x - NIFTY (Jul, 2018) https://0xtracker.com/

0xProject - Related Projects σϦόςΟϒ঎඼ͷͨΊͷϓϩτίϧͰ͋ΔE9E: ϨϯσΟϯάΛՄೳʹ͢Δ %IBSNB ෳ਺τʔΫϯΛ૊Έ߹ΘͤͯऔҾՄೳʹ͢Δ4FU1SPUPDPMͳͲɺYϓϩ τίϧΛϕʔεʹ։ൃ͞Ε͍ͯΔϓϩδΣΫτ͕૿͑ͭͭ͋Δ

0xProject - Summary 0⒎DIBJOPSEFSSFMBZ 0ODIBJOTFUUMFNFOUͱ͍͏Ϟσ ϧΛ࠾༻ͨ͠ɺτϥετϨεʹ&3$τʔΫϯΛ΍Γऔ Γ͢Δϓϩτίϧ ύʔϛογϣϯϨεɺΦʔϓϯιʔεͰ୭Ͱ΋࢖༻͢Δ͜ ͱ͕Մೳ YϓϩτίϧΛ࠾༻͢Δ%&9 3FMBZFS ͕طʹҎ্ ଘࡏ͓ͯ͠ΓɺऔҾͷϘϦϡʔϜ΋૿͑ͭͭ͋Δ

0xProject - Challenges ଎౓ɺεέʔϥϏϦςΟ ϑϩϯτϥϯχϯάͷ໰୊ τϥϯβΫγϣϯ͕ϊʔυؒ Λ఻ൖ͢ΔλΠϛϯάͷࠩΛ࢖ͬͨͷ஫จͷԣऔΓ ن੍

Radar Relay https://radarrelay.com/

Radar Relay https://radarrelay.com/learn

References 0x - NIFTY (Jul, 2018) https://docs.google.com/presentation/d/1D5ybhJkNb7FYlIgHM3g37NBFSSI4XgkQecWbnsiBj1E/edit Welcome to the 0x Community https://blog.0xproject.com/welcome-to-the-0x-community-9d99dfe0a52b The 0x Mission and Values https://blog.0xproject.com/the-0x-mission-and-values-181a58706f9f 18 Ideas for 0x Relayers in 2018 https://blog.0xproject.com/18-ideas-for-0x-relayers-in-2018-80a1498b955f