Bitcoin Improvement Flow

Bitcoin Improvement Flow

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Kazuki YAMAGUCHI

January 16, 2018
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  1.  #MPDLDIBJO5PLZP!NFSDBSJ #JUDPJO*NQSPWFNFOU'MPX dιϑτϑΥʔΫΛ༻͍ͨίϯηϯαεϨΠϠʔͷվળd

  2. 4PGUXBSF&OHJOFFS!(VOPTZ (SBEVBUFEGSPN4QSJOH 8FC"QQMJDBUJPO3BJMT %BQQT4PMJEJUZ 3FTFBSDI$SZQUP$VSSFODZCMPDLDIBJO (JUIVC5XJUUFS!ZBNBSL[ ,B[VLJ:BNBHVDIJ!ZBNBSL[

  3. (VOPTZ#MPDLDIBJO#MPH΍ͬͯ·͢ʂ ʮIUUQCMPDLDIBJOHVOPTZJPʯPSʮάϊγʔϒϩοΫνΣʔϯʯ

  4. "HFOEB wϏοτίΠϯͷվળ wϑΥʔΫͷ෮श wιϑτϑΥʔΫΛ࣮ࢪ͢Δͭͷखஈ w'MBH%BZ"DUJWBUJPO w*T4VQFS.BKPSJUZ wWFSTJPOCJUT w·ͱΊ

  5. ϏοτίΠϯͷվળ

  6. ϏοτίΠϯͷվળ·ͱΊ ೥݄ʹϦϦʔε͞Ε͔ͯΒଟ͘ͷվળ͕͞Ε͖ͯͨɻ w TFHXJU w $PNQBDU#MPDL3FMBZ w )%XBMMFU w $IFDL4FRVFODF7FSJGZ

    w $IFDL-PDL5JNF7FSJGZ w .JOJOHUSBOTBDUJPOTFMFDUJPO w 4JHOBUVSFWBMJEBUJPOMJCTFDQL w %JSFDUIFBEFSTBOOPVODFNFOU w 4USJDU%&3TJHOBUVSFT w )FJHIUJO$PJOCBTF w .VMUJ8BMMFU4VQQPSU w 6590NFNPSZBDDPVOUJOH w 5SBOTBDUJPOqPPEJOH w #MPDLpMFQSVOJOH w #JHFOEJBOTVQQPSU w .FNPSZVTBHFPQUJNJ[BUJPO w #MPPN'JMUFS w 01@3&563/ w #JUDPJODMJ w $POTFOTVTMJCSBSZ w 5FTUGPS-PX4TJHOBUVSFTCFGPSF w 3FEVDFVQMPBEUSB⒏D w .FNPSZQPPMMJNJUJOH w 0QUJO3FQMBDFCZGFFUSBOTBDUJPOT w 3FMBZBOE.JOJOH1SJPSJUZUSBOTBDUJPOT w WFSTJPOCJUT w TPGUGPSLUPFOGPSDFTFRVFODFMPDLT GPSSFMBUJWFMPDLUJNF w HFUJOGP%FQSFDBUFE w $PNQBDU#MPDLWFSTJPO w 3FNPWBMPG$PJO"HF1SJPSJUZ w %VQMJDBUFUSBOTBDUJPOT
  7. ϏοτίΠϯͷվળ·ͱΊ ೥݄ʹϦϦʔε͞Ε͔ͯΒ͜Ε·Ͱଟ͘ͷվળ͕͞Ε͖ͯͨɻ w TFHXJU w $PNQBDU#MPDL3FMBZ w )%XBMMFU w $IFDL4FRVFODF7FSJGZ

    w $IFDL-PDL5JNF7FSJGZ w .JOJOHUSBOTBDUJPOTFMFDUJPO w 4JHOBUVSFWBMJEBUJPOMJCTFDQL w %JSFDUIFBEFSTBOOPVODFNFOU w 4USJDU%&3TJHOBUVSFT w )FJHIUJO$PJOCBTF w .VMUJ8BMMFU4VQQPSU w 6590NFNPSZBDDPVOUJOH w 5SBOTBDUJPOqPPEJOH w #MPDLpMFQSVOJOH w #JHFOEJBOTVQQPSU w .FNPSZVTBHFPQUJNJ[BUJPO w #MPPN'JMUFS w 01@3&563/ w #JUDPJODMJ w $POTFOTVTMJCSBSZ w 5FTUGPS-PX4TJHOBUVSFTCFGPSF w 3FEVDFVQMPBEUSB⒏D w .FNPSZQPPMMJNJUJOH w 0QUJO3FQMBDFCZGFFUSBOTBDUJPOT w 3FMBZBOE.JOJOH1SJPSJUZUSBOTBDUJPOT w WFSTJPOCJUT w TPGUGPSLUPFOGPSDFTFRVFODFMPDLT GPSSFMBUJWFMPDLUJNF w HFUJOGP%FQSFDBUFE w $PNQBDU#MPDLWFSTJPO w 3FNPWBMPG$PJO"HF1SJPSJUZ w %VQMJDBUFUSBOTBDUJPOT ॳظϦϦʔε͔Β͜Ε·Ͱ
 վળ͞Εͨ಺༰͸Ҏ্
  8. ϏοτίΠϯͷվળ·ͱΊ ೥݄ʹϦϦʔε͞Ε͔ͯΒ͜Ε·Ͱଟ͘ͷվળ͕͞Ε͖ͯͨɻ w TFHXJU w $PNQBDU#MPDL3FMBZ w )%XBMMFU w $IFDL4FRVFODF7FSJGZ

    w $IFDL-PDL5JNF7FSJGZ w .JOJOHUSBOTBDUJPOTFMFDUJPO w 4JHOBUVSFWBMJEBUJPOMJCTFDQL w %JSFDUIFBEFSTBOOPVODFNFOU w 4USJDU%&3TJHOBUVSFT w )FJHIUJO$PJOCBTF w .VMUJ8BMMFU4VQQPSU w 6590NFNPSZBDDPVOUJOH w 5SBOTBDUJPOqPPEJOH w #MPDLpMFQSVOJOH w #JHFOEJBOTVQQPSU w .FNPSZVTBHFPQUJNJ[BUJPO w #MPPN'JMUFS w 01@3&563/ w #JUDPJODMJ w $POTFOTVTMJCSBSZ w 5FTUGPS-PX4TJHOBUVSFTCFGPSF w 3FEVDFVQMPBEUSB⒏D w .FNPSZQPPMMJNJUJOH w 0QUJO3FQMBDFCZGFFUSBOTBDUJPOT w 3FMBZBOE.JOJOH1SJPSJUZUSBOTBDUJPOT w WFSTJPOCJUT w TPGUGPSLUPFOGPSDFTFRVFODFMPDLT GPSSFMBUJWFMPDLUJNF w HFUJOGP%FQSFDBUFE w $PNQBDU#MPDLWFSTJPO w 3FNPWBMPG$PJO"HF1SJPSJUZ w %VQMJDBUFUSBOTBDUJPOT ࠓճ͸͜ͷվળ಺༰ͷத͔Βɺ ίϯηϯαεϨΠϠʔͷվળʹ஫໨͠ɺ ιϑτϑΥʔΫΛߦ͏ϑϩʔΛ঺հ͠·͢
  9. 'PSL

  10. 'PSL ϑΥʔΫ͸େ͖͘෼͚ͯͭɺιϑτϑΥʔΫͱϋʔυϑΥʔΫ ιϑτϑΥʔΫ ϒϩοΫνΣʔϯʹޙํޓ׵ੑͷ͋ΔมߋΛՃ͑ͨ࣌ʹൃੜ͢ΔͷνΣʔϯͷ෼ذ ʮޙํޓ׵ੑ͕͋Δʯͱ͸ɺैདྷΑΓ΋ݫ͍͠ن໿Λઃ͚Δ͜ͱ FY TFHXJUͷಋೖ৽͍͠01ίʔυͷಋೖFUD ϋʔυϑΥʔΫ ϒϩοΫνΣʔϯʹޙํޓ׵ੑͷͳ͍มߋՃ͑ͨ࣌ʹൃੜ͢ΔνΣʔϯͷ෼ذ ʮޙํޓ׵ੑ͕ͳ͍ʯͱ͸ɺैདྷΑΓ΋؇͍ن໿Λઃ͚Δ͜ͱ

    FY ϒϩοΫαΠζΛ.#ʹมߋ͢ΔFUD ˢࠓճ͸ͬͪ͜ͷ࿩
  11. 'PSL ৄࡉͳղઆ͸ࠓճTLJQ͠·͕͢ɺৄ͘͠஌Γ͍ͨํ͸্هࢿྉΛࢀߟ IUUQTTQFBLFSEFDLDPNTPOBUBSEGPSL

  12. ιϑτϑΥʔΫΛ࣮ࢪ͢Δͭͷखஈ ɾ'MBH%BZ"DUJWBUJPO ɾ*T4VQFS.BKPSJUZ ɾWFSTJPOCJUT

  13. 'MBHEBZBDUJWBUJPO

  14. 'MBHEBZBDUJWBUJPO Ҏޙɺ৽͍͠ϧʔϧ͕ద༻ ظ೔ͱͯ͠ઃ͚ͨ೔࣌ ظ೔·ͰʹΫϥΠΞϯτΛΞοϓσʔτ ɾॳظϏοτίΠϯͰ࠾༻͞Ε͍ͯͨํ๏ ɾಛఆͷظ೔Λઃ͚ɺظ೔Ҏ߱ʹ৽͍͠ϧʔϧΛద༻

  15. 'MBHEBZBDUJWBUJPO Ҏޙɺ৽͍͠ϧʔϧ͕ద༻ ظ೔ͱͯ͠ઃ͚ͨ೔࣌ ظ೔·ͰʹΫϥΠΞϯτΛΞοϓσʔτ ɾॳظϏοτίΠϯίΞͰ࠾༻͞Ε͍ͯͨํ๏ ɾಛఆͷظ೔Λઃ͚ɺظ೔Ҏ߱ʹ৽͍͠ϧʔϧΛద༻ γϯϓϧ͕ͩɺةݥͳख๏ ͳͥͳΒɺظ೔ద༻͸ϚΠφʔͷϋογϡύϫʔͷόϥϯεΛߟྀ͍ͯ͠ͳ͍͔Βɻ ݁Ռɺ3FPSHBOJ[BUJPO໰୊͕ൃੜ͢ΔϦεΫΛ൐͏

  16. 3FPSHBOJ[BUJPO໰୊

  17. 3FPSHBOJ[BUJPOͱ͸ SFPSH SFPSH SFPSH 3FPSHBOJ[BUJPO νΣʔϯͷ࠶ฤ੒  ෼ذͨ͠νΣʔϯ͕ͭʹऩଋ͢Δ ϏοτίΠϯʹ͸ʮνΣʔϯ͕෼ذͨ͠৔߹ɺ௕͍ํͷνΣʔϯΛ༗ޮͳ΋ͷͱ͢Δʯͱ͍͏ ϧʔϧ͕͋Δɻ͜ΕʹΑΓνΣʔϯ͕࡟আɺ࠶ฤ੒͕ى͖Δɻ

    SFPSHʹΑΓɺϒϩοΫҎ্৳ͼͨνΣʔϯ͕࠶ฤ੒͞ΕΔ͜ͱͰࠞཚͨ͠ঢ়گ͕ ࡞ΒΕΔ
  18. ϑϥάσΠΛ༻͍ͯΞΫςΟϕʔτΛ࣮ࢪͨ͠৔໘Λ૝ఆ چ࢓༷νΣʔϯ"ͱ৽࢓༷νΣʔϯ#͕࡞ΒΕɺϋογϡύϫʔ͕፰߅͍ͯ͠Δঢ়گ 3FPSHBOJ[BUJPOʹΑΓൃੜ͢Δ໰୊ چ࢓༷  ৽࢓༷  ϑϥάσΠ " "

    " " # # # ϋογϡύϫʔ͕፰߅͍ͯ͠Δঢ়گΛ૝ఆ ΞοϓσʔτΛ͠๨ΕΔ ϒϩοΫҎ্৳ͼΔ
  19. چ࢓༷νΣʔϯ"ͷϚΠφʔ͕νΣʔϯ#ʹҠಈ νΣʔϯ#ͷϋογϡύϫʔ͕ʹͳΓ৳ͼଓ͚ɺ#͕ϝΠϯνΣʔϯͱͯ͠ೝ ࣝ͞ΕΔ 3FPSHBOJ[BUJPOʹΑΓൃੜ͢Δ໰୊ ৽࢓༷  چ࢓༷  ϑϥάσΠ άϧʔϓ#΁ͷ߹ྲྀ

    " " " " # # # # # # "ͷϚΠφʔ͕#ʹҠಈ ΞοϓσʔτΛ๨Ε͍ͯͨ͜ͱʹؾͮ͘
  20. νΣʔϯ#͕ϝΠϯνΣʔϯʹͳΓɺνΣʔϯ"ͰSFPSH͕ൃੜ SFPSHʹΑΓ్த·Ͱ৳ͼ͍ͯͨνΣʔϯ"͸࡟আ͞ΕΔ 3FPSHBOJ[BUJPOʹΑΓൃੜ͢Δ໰୊ ৽࢓༷  چ࢓༷  ϑϥάσΠ νΣʔϯ"͕࡟আ͞ΕɺνΣʔϯ#͕ϝΠϯνΣʔϯʹ SFPSHൃੜ

    " " " " # # # # # # "ͷϚΠφʔ͕#ʹҠಈ νΣʔϯࣗମ͕࡟আ
  21. 3FPSHBOJ[BUJPOͱࠞཚͨ͠ঢ়گ ྫ͋Δ঎඼ΛϏοτίΠϯࢧ෷͍Ͱߪೖͨ͠৔໘ νΣʔϯ"ͷঝೝࡁΈτϥϯβΫγϣϯΛࢀর͠ࢧ෷͍τϥϯβΫγϣϯΛ࡞੒ɺࢧ෷͍Λ ߦ͏ ͜ͷ࣌ࢧ෷͍ʹ࢖༻ͨ͠τϥϯβΫγϣϯ͸ɺνΣʔϯ#Ͱ͸ະঝೝτϥϯβΫγϣϯͷ· ·ͩͬͨ ళһ͸ࢧ෷͍ૹۚΛ֬ೝ͠ɺ঎඼Λ౉͠·͢ ঎඼Λ౉ͨ͠ޙϚΠφʔͷҠಈ͕ൃੜɺνΣʔϯ"ͷ৳ͼ͕4501 ͦͯ͠νΣʔϯ"Ͱ͸SFPSH͕ൃੜ͠ɺνΣʔϯࣗମ͕࡟আ ళһ͕ड͚औͬͨτϥϯβΫγϣϯͷࢀরݩͰ͋ΔঝೝࡁΈτϥϯβΫγϣϯ͕SFPSHʹΑ

    Γফ͑ͨͨΊड͚औͬͨτϥϯβΫγϣϯ͕ফࣦɻɻɻ ݁Ռɺൢചଆͷड͚औͬͨରՁ͕ফࣦͨͨ͠ΊɺແྉͰ঎඼Λख౉ͨ͜͠ͱʹɻɻɻ
  22. ࠞཚͨ͠ঢ়گ ফ͑ΔϚΠχϯάใु ड͚औͬͨ#5$͕ফ͑ͨਓ 3FPSHBOJ[BUJPOͱࠞཚͨ͠ঢ়گ

  23. ࠞཚͨ͠ঢ়گ ফ͑ΔϚΠχϯάใु ड͚औͬͨ#5$͕ফ͑ͨਓ 3FPSHBOJ[BUJPOͱࠞཚͨ͠ঢ়گ 3FPSHBOJ[BUJPO͕ൃੜ͠ɺࠞཚ͢Δঢ়گ͕࡞ΒΕΔՄೳੑ ͜ͷ༷ͳՄೳੑͷ͋ΔιϑτϑΥʔΫ͸΍ΊΔ΂͖ͩɻ

  24. *T4VQFS.BKPSJUZ 'MBHEBZ"DUJWBUJPOͷ໰୊఺Λղܾͨ͠ιϑτϑΥʔΫͷखஈ

  25. *T4VQFS.BKPSJUZ ϚΠφʔ͕ੜ੒͢ΔϒϩοΫͷO7FSTJPOϑΟʔϧυͷ஋Λݩʹ൑அ ࠷৽ϒϩοΫ͔Β௚ۙϒϩοΫதϒϩοΫ શମͷ ʹಛఆͷWFSTJPO ஋ؚ͕·Ε͍ͯΔ͔νΣοΫɻؚ·Ε͍ͯͨ৔߹ʹΞΫςΟϕʔτΛ࣮ࢪ ࠷৽ϒϩοΫ ௚ۙϒϩοΫʹWFSTJPO஋ؚ͕·Ε͍ͯΔ͔νΣοΫ͢Δ ௚ۙϒϩοΫதϒϩοΫ શମͷ

    ͷ४උ͕੔ͬͨ࣌఺Ͱద༻
  26. *T4VQFS.BKPSJUZ ࠷৽ϒϩοΫ͔Β௚ۙϒϩοΫͷ಺ϒϩοΫʹWFSTJPO஋͕ ؚ·Ε͍ͯΔ͔νΣοΫɻؚ·Ε͍ͯͨ৔߹ʹΞΫςΟϕʔτΛ࣮ࢪ ࠷৽ϒϩοΫ ௚ۙϒϩοΫʹWFSTJPO஋ؚ͕·Ε͍ͯΔ͔νΣοΫ͢Δ ϒϩοΫ͕ϚΠφʔͷରԠঢ়گΛࣔ͢͜ͱͰɺϋογϡύ ϫʔʹԠͨ͡ΞΫςΟϕʔτʹͳͬͨɻ *4.Ͱ͸ϑϥάσΠͰ૝ఆ͞ΕͨϦεΫ͸׬ᘳʹ๷͛ͨɻ ͔͠͠ɺ͜͜Ͱ΋৽ͨͳ໰୊͕ɻɻɻ

  27. w-JNJU5JNF͕ଘࡏ͠ͳ͍ w ͦͷ݁ՌɺιϑτϑΥʔΫ͕׬ྃ͠ͳ͍ݶΓɺ࣮࣭ແݶʹΞΫςΟϕʔτ଴ͪ ͷ൑ఆ͕ଓ͘ wಉ࣌ฒߦͯ͠ιϑτϑΥʔΫͷ࣮ࢪ͕Ͱ͖ͳ͍ w ͦͷ݁Ռɺલʹ࣮ࢪͨ͠ιϑτϑΥʔΫ͕׬ྃ͠ͳ͍ݶΓɺ࣍ͷιϑτϑΥʔ ΫΛ࣮ࢪ͢Δ͜ͱ͕Ͱ͖ͳ͍ *T4VQFS.BKPSJUZ๊͕͑Δ໰୊

  28. WFSTJPOCJUT *T4VQFS.BKPSJUZͷ໰୊఺Λղܾͨ͠ιϑτϑΥʔΫͷखஈ

  29. WFSTJPOCJUT wWFSTJPOCJUT͸#*1Ͱఆٛ͞Ε͍ͯΔιϑτϑΥʔΫͷखஈ w3FUBSHFU1FSJPEͱݺ͹ΕΔϒϩοΫ͝ͱͷ۠੾ΓͰΧ΢ϯτ Λߦ͏ wϒϩοΫΧ΢ϯτ͸ϒϩοΫϔομʔͷWFSTJPO஋ʹಛఆͷ஋ؚ͕·Ε ͍ͯΔ͔Λ൑அ͠ߦ͏ w೥݄࣌఺Ͱ͸͜ͷํ๏Λ༻͍ͯΞΫςΟϕʔτ͕࣮ࢪ͞Ε͍ͯ Δ

  30. WFSTJPOCJUT ϒϩοΫ ϒϩοΫ   ୡ੒͠ϩοΫΠϯ ΞΫςΟϕʔτ ৽͍͠Χ΢ϯτελʔτ ϒϩοΫ 

    3FUBSHFU1FSJPE ϚΠφʔ͕ੜ੒͢ΔϒϩοΫͷO7FSTJPOϑΟʔϧυʹಛఆͷόʔδϣϯ஋ γάφϧ஋ ؚ͕ ·Ε͍ͯΔ͔Λ൑அ
 ϒϩοΫதɺϒϩοΫ શମͷ ʹؚ͕·Ε͍ͯΕ͹ϩοΫΠϯΛߦ͍ɺ࣍ͷ 31ͰΞΫςΟϕʔτΛ࣮ࢪ͢Δ
  31. w-JNJU5JNF͕ଘࡏ͠ͳ͍ w ͦͷ݁ՌɺιϑτϑΥʔΫ͕׬ྃ͠ͳ͍ݶΓɺ࣮࣭ແݶʹΞΫςΟϕʔτ଴ͪ ͷ൑ఆ͕ଓ͘ -JNJU5JNF͕ઃఆ͞ΕιϑτϑΥʔΫॳճ࣮ࢪ͔Β೥ͷ࣮ࢪ༗ޮظݶ͕ઃ ఆ͞Εͨ wಉ࣌ฒߦͯ͠ιϑτϑΥʔΫͷ࣮ࢪ͕Ͱ͖ͳ͍ w ͦͷ݁Ռɺલʹ࣮ࢪͨ͠ιϑτϑΥʔΫ͕׬ྃ͠ͳ͍ݶΓɺ࣍ͷιϑτϑΥʔ ΫΛ࣮ࢪ͢Δ͜ͱ͕Ͱ͖ͳ͍

    ιϑτϑΥʔΫͷϢχʔΫ൑ఆʹ࢖༻͢ΔWFSTJPO஋͸ݸઃఆͰ͖Δɻ ͦͷͨΊɺಉ࣌ฒߦͰݸͷιϑτϑΥʔΫΛ࣮ࢪ͢Δ͜ͱ͕Մೳʹͳͬͨ WFSTJPOCJUT͸*4.๊͕͑Δ໰୊Λղܾ͍ͯ͠Δ
  32. ·ͱΊ 'MBHEBZ" DUJWBUJPO *T4VQFS. BKPSJUZ 7FSTJPOCJUT wϏοτίΠϯ͸ଟ͘ͷػೳվળ͕Ճ͑ΒΕਐԽ͖͍ͯͯ͠Δ wΞϓϦέʔγϣϯ͕෼ࢄతʹ؅ཧ͞Ε͍ͯΔ͕ނʹΞοϓσʔτ ࡞ۀͷ೉қ౓͕ߴ͍ w໰୊Λ๊͑ͳ͕Β΋ιϑτϑΥʔΫͷखஈ͸ਐԽ͖͍ͯͯ͠Δ

    ιϑτϑΥʔΫͷखஈ΋ਐԽ
  33. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ʂ