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トークンの概要と開発観点から見たICO / Token and TokenSale

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April 18, 2018

トークンの概要と開発観点から見たICO / Token and TokenSale

ブロックチェーンエンジニア勉強会 #2

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yamarkz

April 18, 2018
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  1. τʔΫϯ τʔΫϯͱ͸ɺʮ෇ՃՁ஋Λ෼ׂత͔ͭɺఆྔతʹѻ͏ͨΊͷσʔλʯ ෇ՃՁ஋ͱ͸ɺαʔϏεΛར༻͢ΔͨΊͷݖརূ໌Ͱ͋ͬͨΓɺऩӹ෼഑ݖͷॴ༗Λ ূ໌͢Δ΋ͷͷ͜ͱɻ ෇ՃՁ஋ͷ෇͍ͨσʔλΛzτʔΫϯzͱ͍͏୯Ґ τʔΫϯ τʔΫϯ ʹ͢ Δ͜ͱͰɺ෼ׂత͔ͭɺఆྔతʹѻ͑ΔΑ͏ʹͳΔɻ ਎ۙͳྫ51PJOU

    51PJOUͷϙΠϯτσʔλʹ͸෇ՃՁ஋ͱͯ͠঎඼ߪೖ࣌ʹϙΠϯτΛϑΟΞοτʹ ؐݩ͢Δ͜ͱ͕Ͱ͖ΔɻσʔλΛѻ͏୯ҐΛϙΠϯτͱ͍ͯ͠Δ͚ͩͰτʔΫϯͰ͋ Δͱݴ͑Δɻࢧ෷͍ʹར༻Ͱ͖ΔͷͰϖΠϝϯττʔΫϯʹ֘౰͢Δɻ
  2. *$0 ϓϥΠϕʔτηʔϧ ϓϨηʔϧ Ϋϥ΢υηʔϧ *$0ͰͷτʔΫϯ͸ஈ֊తͳചΓग़͕͠ߦΘΕΔ *OJUJBM$PJO0GGFSJOH *$0ͱ͸ɺϓϩδΣΫτͰར༻Ͱ͖ΔίΠϯ σδλϧτʔΫϯɾ҉߸௨՟ Λൃߦ͠ɺϓ ϩδΣΫτਪਐͷࢿۚΛௐୡ͢ΔͨΊͷखஈͷ͜ͱɻ೥͔Βരൃతʹ૿͑ͨ

    ϓϩδΣΫτଆ͸ϓϩδΣΫτͷৄࡉͱ੒ޭͤ͞Δ·ͰͷϩʔυϚοϓΛهͨ͠ 8IJUF1BQFSΛ࡞੒ɻ౤ࢿՈଆ͸8IJUF1BQFSΛݩʹϓϩδΣΫτΛ൑அɻ ϓϩδΣΫτͷ಺༰ʹࢍಉͨ͠৔߹ɺτʔΫϯΛߪೖ͢Δ͜ͱϓϩδΣΫτΛࢧԉ͢Δ
  3. ϓϩϞʔγϣϯɾ ౤ࢿՈͱͷ ίϛϡχέʔγϣϯ *$0ͷେ·͔ͳྲྀΕ ࣾ ಺ ଆ ͷ ಈ ͖

    ࣾ ֎ ڠ ٞ ໨తɾҙٛͷ ఆٛ ௐୡֹɾ ܭըݕ౼ طଘגओ΁ͷ આ໌ɾઆಘ หޢ࢜֬ೝɾڠٞ ίΠϯػೳɾαʔ Ϗεͱͷ༥߹ܾఆ εΩʔϜܾఆ ΦϖϨʔγϣϯ ઃܭ Ωϟϯϖʔϯ ઃܭ ίΠϯ࣮૷ ϗϫΠτ ϖʔύʔ ࡞੒ αΠτ ࡞੒ औҾॴͱͷڠٞ α Π τ Φ c ϓ ϯ ϓ Ϩ η c ϧ Ϋ ϥ ΢ υ η c ϧ η Χ ϯ μ Ϧ c Ϛ c έ ο τ ։ ઃ ࣄલ४උ ࣄલઃܭ ࣮૷ *$0࣮ࢪ 'SPN*$0ίϯαϧςΟϯάࣄۀ͔ΒಘͨτʔΫϯͱશମΞʔΩςΫνϟઃܭͷ஌ݟ ϲ݄d dϲ݄ dϲ݄ ϏδωεϚʔέ ๏຿ɾձܭ ٕज़ɾ։ൃ
  4. ࠃ಺ ւ֎ ɾ$0.4" $0.4"͸*$0ͷϓϥοτϑΥʔϜΛߏங͢ΔϓϩδΣΫτ ʹ*$0ΛΫϥ΢υηʔϧΛ࣮ࢪɻ࠷େԯن໛ͷௐୡʹ੒ޭ ɾ"-*4 "-*4͸৴པͰ͖ΔهࣄͱਓʑΛ໌Β͔ʹ͢Δશ͘৽͍͠ιʔγϟϧϝσΟΞΛ໨ࢦ͢ϝσΟ ΞϓϥοτϑΥʔϜ ʹΫϥ΢υηʔϧΛ࣮ࢪɻ૯ֹԯԁ૬౰ͷࢿۚௐୡʹ੒ޭ ΑΓαʔϏεͷЌ൛ެ։༧ఆɻ

    ɾ0NJTF(0 0NJTF(0͸ϖΠϝϯταʔϏεΛఏڙ͢ΔϓϩδΣΫτ ʹΫϥ΢υηʔϧΛ࣮ࢪɻ͓͓Αͦԯԁ૬౰ͷࢿۚௐୡʹ੒ޭ ɾ;JMMJRB ;JMMJRB͸ϋΠεϧʔϓοτͳτϥϯβΫγϣϯॲཧΛ࣮ݱ͢ΔεϚʔτίϯτϥΫτͷϓϥοτ ϑΥʔϜ ʹΫϥ΢υηʔϧΛ࣮ࢪɻ૯ֹԯԁ૬౰ͷࢿۚௐୡʹ੒ޭ *$0ΛߦͳͬͨϓϩδΣΫτͷࣄྫ
  5. αΠτ ࡞੒ ϗϫΠτ ϖʔύʔ ࡞੒ ϓϩϞʔγϣϯɾ ౤ࢿՈͱͷ ίϛϡχέʔγϣϯ ࣾ ಺

    ଆ ͷ ಈ ͖ ࣾ ֎ ڠ ٞ ໨తɾҙٛͷ ఆٛ ௐୡֹɾ ܭըݕ౼ طଘגओ΁ͷ આ໌ɾઆಘ หޢ࢜֬ೝɾڠٞ ίΠϯػೳɾαʔ Ϗεͱͷ༥߹ܾఆ εΩʔϜܾఆ ΦϖϨʔγϣϯ ઃܭ Ωϟϯϖʔϯ ઃܭ औҾॴͱͷڠٞ α Π τ Φ c ϓ ϯ ϓ Ϩ η c ϧ η Χ ϯ μ Ϧ c Ϛ c έ ο τ ։ ઃ ࣄલ४උ ࣄલઃܭ ࣮૷ *$0࣮ࢪ 'SPN*$0ίϯαϧςΟϯάࣄۀ͔ΒಘͨτʔΫϯͱશମΞʔΩςΫνϟઃܭͷ஌ݟ ϲ݄d dϲ݄ dϲ݄ ίΠϯ࣮૷ Ϋ ϥ ΢ υ η c ϧ *$0ͷେ·͔ͳྲྀΕ ϏδωεϚʔέ ๏຿ɾձܭ ٕज़ɾ։ൃ ͜ͷลΓͷ࿩
  6. ͬ͘͟Γશମ૾ τʔΫϯηʔϧίϯτϥΫτ τʔΫϯίϯτϥΫτ &UIFSFVN1MBUGPSN (OPTJT.VMUJ4JHOBUVSF8BMMFU τʔΫϯΛߪೖ͢ΔϢʔβʔ PS όϦσʔτ τʔΫϯͷ෇༩Λ֬ೝ τʔΫϯߪೖؔ਺Λ࣮ߦͨ͠ϢʔβʔͷΞυϨεʹରͯ͠ɺ

    τʔΫϯηʔϧίϯτϥΫτ಺Ͱࢉग़ͨ͠τʔΫϯྔΛ෇༩͢Δ τʔΫϯૹ෇ॲཧޙɺτʔΫϯηʔϧίϯτϥΫτʹରͯ͠ૹ෇͞Εͨ&UIFSΛɺ (OPTJTͷ.VMUJ4JHOBUVSF8BMMFUͷ8BMMFUΞυϨεʹUSBOTGFS͢Δ τʔΫϯηʔϧͷ࢓૊Έ ࢧ෷͏&UIFSྔΛηοτ͠5SBOTBDUJPO࡞੒ τʔΫϯηʔϧͷؔ਺Λ࣮ߦ
  7. τʔΫϯηʔϧίϯτϥΫτ όϦσʔτ (OPTJT.VMUJ4JHOBUVSF8BMMFU ࢧ෷͏&UIFSྔΛηοτ͠5SBOTBDUJPO࡞੒ τʔΫϯηʔϧͷؔ਺Λ࣮ߦ τʔΫϯΛߪೖ͢ΔϢʔβʔ PS τʔΫϯͷ෇༩Λ֬ೝ τʔΫϯߪೖؔ਺Λ࣮ߦͨ͠ϢʔβʔͷΞυϨεʹରͯ͠ɺ τʔΫϯηʔϧίϯτϥΫτ಺Ͱࢉग़ͨ͠τʔΫϯྔΛ෇༩͢Δ

    τʔΫϯૹ෇ॲཧޙɺτʔΫϯηʔϧίϯτϥΫτʹରͯ͠ૹ෇͞Εͨ&UIFSΛɺ (OPTJTͷ.VMUJ4JHOBUVSF8BMMFUͷ8BMMFUΞυϨεʹUSBOTGFS͢Δ τʔΫϯίϯτϥΫτ &UIFSFVN1MBUGPSN ͬ͘͟Γશମ૾ τʔΫϯηʔϧͷ࢓૊Έ
  8. τʔΫϯίϯτϥΫτ .FUB$PJOTPM 4UBOEBSE5PLFOTPM 1BVTBCMFTPM 0XOBCMFTPM &3$TPM #BTJD5PLFOTPM &3$#BTJDTPM 1BVTBCMF5PLFOTPM #VSOBCMF5PLFOTPM

    ྫ.FUB$PJOͱ͍͏&3$τʔΫϯͷ࡞੒ 0QFO;FQQFMJO͕ఏڙͯ͘͠Δ[FQQFMJOTPMEJUZͷ࢓૊ΈʹଇΔ
  9. 0QFO;FQQFMJO͕ఏڙͯ͘͠Δ[FQQFMJOTPMEJUZͷ࢓૊ΈʹଇΔ .FUB$PJOTPM 4UBOEBSE5PLFOTPM 1BVTBCMFTPM ྫ.FUB$PJOͱ͍͏&3$τʔΫϯͷ࡞੒ 0XOBCMFTPM &3$TPM #BTJD5PLFOTPM &3$#BTJDTPM 1BVTBCMF5PLFOTPM

    #VSOBCMF5PLFOTPM ந৅ίϯτϥΫτ ந৅ίϯτϥΫτ BQQSPWFUSBOTGFS'SPNBMMPXBODF USBOTGFSCBMBODF0G POMZ0XOFS CVSO ؔ਺ݺͼग़͠Λ਌ίϯτϥΫτʹҕৡ QBVTF OBNFTZNCPMEFDJNBMT τʔΫϯίϯτϥΫτ
  10. .FUB$PJOTPM 4UBOEBSE5PLFOTPM 1BVTBCMFTPM ྫ.FUB$PJOͱ͍͏&3$τʔΫϯͷ࡞੒ 0XOBCMFTPM &3$TPM #BTJD5PLFOTPM &3$#BTJDTPM 1BVTBCMF5PLFOTPM #VSOBCMF5PLFOTPM

    ந৅ίϯτϥΫτ ந৅ίϯτϥΫτ BQQSPWFUSBOTGFS'SPNBMMPXBODF 5SBOTGFSCBMBODF0G POMZ0XOFS #VSO ؔ਺ݺͼग़͠Λ਌ίϯτϥΫτʹҕৡ QBVTF OBNFTZNCPMEFDJNBMT [FQQFMJOTPMJEJUZͷίϯτϥΫτΛܧঝͰ૊Έ߹Θͤͯɺ ͭͷτʔΫϯίϯτϥΫτΛ࡞੒͢Δ τʔΫϯίϯτϥΫτ 0QFO;FQQFMJO͕ఏڙͯ͘͠Δ[FQQFMJOTPMEJUZͷ࢓૊ΈʹଇΔ
  11. τʔΫϯηʔϧίϯτϥΫτ τʔΫϯίϯτϥΫτ (OPTJT.VMUJ4JHOBUVSF8BMMFU CVZ5PLFO &5) @EFMJWFS5PLFOT USBOTGFS @GPSXBSE'VOET USBOTGFS &5)

    CBMBODF0G BEESFTT 3FUVSOUPLFODPVOU Ϣʔβʔ τʔΫϯ෇༩Λ֬ೝ τʔΫϯηʔϧίϯτϥΫτ
  12. τʔΫϯηʔϧίϯτϥΫτ όϦσʔτ τʔΫϯίϯτϥΫτ ࢧ෷͏&UIFSྔΛηοτ͠5SBOTBDUJPO࡞੒ τʔΫϯηʔϧͷؔ਺Λ࣮ߦ τʔΫϯΛߪೖ͢ΔϢʔβʔ PS τʔΫϯͷ෇༩Λ֬ೝ τʔΫϯߪೖؔ਺Λ࣮ߦͨ͠ϢʔβʔͷΞυϨεʹରͯ͠ɺ τʔΫϯηʔϧίϯτϥΫτ಺Ͱࢉग़ͨ͠τʔΫϯྔΛ෇༩͢Δ

    τʔΫϯૹ෇ॲཧޙɺτʔΫϯηʔϧίϯτϥΫτʹରͯ͠ૹ෇͞Εͨ&UIFSΛɺ (OPTJTͷ.VMUJ4JHOBUVSF8BMMFUͷ8BMMFUΞυϨεʹUSBOTGFS͢Δ &UIFSFVN1MBUGPSN ͬ͘͟Γશମ૾ τʔΫϯηʔϧͷ࢓૊Έ (OPTJT.VMUJ4JHOBUVSF8BMMFU
  13. (OPTJT.VMUJ4JHOBUVSF8BMMFU Φʔφʔୡ ૹۚઌ (OPTJT.VMUJ4JHOBUVSF8BMMFU DPOpSN5SBOTBDUJPO UY*E DPOpSN5SBOTBDUJPO UY*E TVCNJU5SBOTBDUJPO EFTUJOBUJPO

    WBMVF EBUB $POUSBDU%FQMPZ FYFDVUF5SBOTBDUJPO UY*E UYEFTUJOBUJPODBMMWBMVF UYWBMVF UYEBUB 5Yσʔλͷ࡞੒ 0XOFSͷBEESFTTΛొ࿥ ࠷௿DPOpSN਺ͷઃఆ 5Yσʔλͷঝೝ 5Yσʔλͷঝೝ ঝೝ਺͕ଗͬͨΒૹ৴ॲཧΛ࣮ߦ
  14. τʔΫϯηʔϧίϯτϥΫτ τʔΫϯίϯτϥΫτ &UIFSFVN1MBUGPSN (OPTJT.VMUJ4JHOBUVSF8BMMFU τʔΫϯηʔϧޙͷల։ ಠࣗνΣʔϯͷ࣮૷ &UIFSFVNΛར༻ͨ͠ αʔϏεߏங αʔϏεར༻ʹ࢖͏ ಠ

    ࣗ ν Σ ʔ ϯ ಺ Ͱ ࢖ ༻ ͢ Δ τ ʔ Ϋ ϯ ʹ USBOTMBUF͠ ɺ ࢖ ༻ ͢ Δ ू·ͬͨ&UIFSΛऔҾॴͳͲʹച٫͠ɺϓϩδΣΫτਪਐͷࢿۚͱͯ͠࢖༻ ༨ஊ