Proof of Stake Casper

ブロックチェーン勉強会 #1 発表資料

Transcript

1. 1SPPG
   PG
   4UBLF
   $BTQFS
   
   d&UIFSFVN
   ະདྷͷίϯηϯαεΞϧΰϦζϜd 
   ϒϩοΫνΣʔϯษڧձ
   
   ,B[VLJ
   :BNBHVDIJ
   !ZBNBSL[
   (VOPTZ
   *OD
2. 4PGUXBSF
   &OHJOFFS
   !(VOPTZ
   (SBEVBUFE
   GSPN
   4QSJOH
   
   8FC"QQMJDBUJPO
   3BJMT
   %BQQT
   4PMJEJUZ
   3FTFBSDI
   $SZQUP$VSSFODZ
   
   #MPDLDIBJO
   (JUIVC
   
   5XJUUFS
   
   !ZBNBSL[ ,B[VLJ
   :BNBHVDIJ
   
   !ZBNBSL[
3. (VOPTZ
   #MPDLDIBJO
   #MPH
   ΍ͬͯ·͢ʂ ʮIUUQCMPDLDIBJOHVOPTZJP
   ʯPS
   ʮάϊγʔ
   ϒϩοΫνΣʔϯʯ
4. "HFOEB w&UIFSFVN
   ݱࡏͷεςʔλε
   w&UIFSFVN
   ϝδϟʔΞοϓσʔτϑϩʔ
   w1SPPG
   PG
   4UBLF
   w&UIFSFVNͷ1P4
   $BTQFS
   wͭͷ$BTQFS
   w$BTQFS
   'SJFOEMZ
   'JOBMJUZ
   (BEHFU
   w·ͱΊ ˞ࠓճ͸$BTQFSͷ֓ཁͷ঺հͷΈͰɺৄࡉͳٕज़࢓༷ʹ͸৮Ε·ͤΜ
   ˞$BTQFSͷٕज़࢓༷͸ݱࡏਐߦܥͰࡦఆதͰ͢ͷͰࠓޙมΘΔՄೳੑ͕͋Γ·͢
5. &UIFSFVN
   ݱࡏͷεςʔλε 
   ࣌఺
6. &UIFSFVN
   ݱࡏͷεςʔλε ࡞੒ऀ 7JUBMJL
   #VUFSJO ެ։೔  γεςϜ 1SPPG
   PG
   8PSL ίϯηϯαεΞϧΰϦζϜ &UIBTI τʔΫϯൃߦ্ݶ ͳ͠ ϒϩοΫੜ੒ใु &5) ϒϩοΫੜ੒ִؒ ฏۉඵ ϝδϟʔόʔδϣϯ .FUSPQPMJT
   #Z[BOUJVN ಛ௃ 4NBSU
   $POUSBDUT
7. ࠓճ͸͜͜ͷ࿩ ࡞੒ऀ 7JUBMJL
   #VUFSJO ެ։೔  γεςϜ 1SPPG
   PG
   8PSL ίϯηϯαεΞϧΰϦζϜ &UIBTI τʔΫϯൃߦ্ݶ ͳ͠ ϒϩοΫੜ੒ใु &5) ϒϩοΫੜ੒ִؒ ฏۉඵ ϝδϟʔόʔδϣϯ .FUSPQPMJT
   #Z[BOUJVN ಛ௃ 4NBSU
   $POUSBDUT &UIFSFVN
   ݱࡏͷεςʔλε
8. &UIFSFVN
   ϝδϟʔΞοϓσʔτϑϩʔ
9. 'SPOUJFS
   ະ։୓ )PNFTUFBE
 Ո԰ෑ .FUSPQPMJT
 େ౎ࢢ 4FSFOJUZ
 ฏ੩ ࠓίί ϝδϟʔΞοϓσʔτ
   ϋʔυϑΥʔΫ &UIFSFVNͷϝδϟʔΞοϓσʔτϑϩʔ ։ൃॳظ͔ΒେܕΞοϓσʔτΛ࣮ࢪ͠ɺਐԽΛଓ͚͍ͯΔ ʁ .FUSPQPMJTୈ஄
   ʮ#Z[BOUJVNʯ͕׬ྃ
10. 'SPOUJFS
    ະ։୓ )PNFTUFBE
 Ո԰ෑ .FUSPQPMJT
 େ౎ࢢ 4FSFOJUZ
 ฏ੩ ϝδϟʔΞοϓσʔτ
    ϋʔυϑΥʔΫ &UIFSFVNͷϝδϟʔΞοϓσʔτϑϩʔ ʁ %BHHFS
    )BTIJNPUP &UIBTI &UIBTI $BTQFS 1SPPG
    PG
    8PSL 1SPPG
    PG
    4UBLF όʔδϣϯ͝ͱʹίϯηϯαεΞϧΰϦζϜ΋มԽ͖͍ͯͯ͠Δ
11. 'SPOUJFS
    ະ։୓ )PNFTUFBE
 Ո԰ෑ .FUSPQPMJT
 େ౎ࢢ 4FSFOJUZ
 ฏ੩ ϝδϟʔΞοϓσʔτ
    ϋʔυϑΥʔΫ &UIFSFVNͷϝδϟʔΞοϓσʔτϑϩʔ ʁ %BHHFS
    )BTIJNPUP &UIBTI &UIBTI $BTQFS 1SPPG
    PG
    8PSL 1SPPG
    PG
    4UBLF ࠓճ͸͜ͷίϯηϯαεΞϧΰϦζϜͷ࿩
12. 1SPPG
    PG
    4UBLF
13. w ΤωϧΪʔফඅ໰୊
    "4*$ϚγϯͷಋೖͳͲ 
 
    εςʔΫྔʹԠͯ͡ϒϩοΫੜ੒֬཰͕มԽ͢ΔͷͰܭࢉྔΛ཈͑ΒΕΔ
    w ߈ܸ໰୊
    ϚΠχϯάϓʔϧͷ݁ୗ 
 
    εςʔΫྔʹґଘ͢ΔܗʹͳΔͷͰɺશମͷͷεςʔΫΛ֬อ͢Δͷ͸ඇݱ࣮త 1SPPG
    PG
    4UBLF
    ͸௚༁͢Δͱʮֻ͚ۚʹΑΔূ໌ʯ
    ίϯτϥΫτ
    PS
    ಛఆͷΞυϨεʹૹ৴͞ΕͨτʔΫϯྔʹԠͯ͡ϒϩοΫঝೝͷ੒ޭ֬཰͕มΘΔɻ
    ʮ੒ޭ֬཰͕มΘΔʯͷఆٛ͸༷ʑɻEJ⒏DVMUZ
    UBSHFUͷ஋͕εςʔΫྔͰมԽ͢Δ৔߹΍ɺϒϩο Ϋੜ੒ݖ͕ϥϯμϜʹৼΓ෼͚ΒΕΔγεςϜͰɺੜ੒ݖΛಘΒΕΔ֬཰͕มԽ͢Δ৔߹ͳͲɻ
    1P4͸1P8๊͕͑ΔʮΤωϧΪʔফඅ໰୊ʯ΍ʮ߈ܸ໰୊ʯͳͲͷ໰୊Λղܾ͢Δίϯηϯαε ΞϧΰϦζϜͱͯ͠ߟ͑ΒΕͨɻ
    ·ͨɺ&UIFSFVNͰ͸τʔΫϯͷྲྀಈੑΛଛͳ͏Մೳੑͷ͋ΔDPJO"HFͷ࢓૊Έ͸ಋೖ͞Εͳ͍ɻ
    ౓εςʔΫͨ͠τʔΫϯ͸໿ϲ݄ϩοΫ͞ΕΔ
    7JUBMJLͷൃݴ 1SPPG
    PG
    4UBLF 1P8๊͕͑Δ໰୊ͱ1P4ʹΑΔղܾ
14. εςʔΫ૯ྔʹରͯࣗ͠਎ͷεςʔΫྔͷׂ߹͕ϑΥʔδϯάͷ੒ޭ֬཰ͱͳΔ
    ্هͷάϥϑͷ৔߹ɺ࠷΋ଟ͘ͷεςʔΫΛߦͳ͍ͬͯΔ%͞Μ͕࠷΋ߴ͍੒ޭ֬཰
    1P8Ͱ͸ܭࢉྔͷଟ͕֬͞཰ʹ൓ө͞ΕΔ͕ɺ1P4Ͱ͸εςʔΫྔͰܾ·Δ όϦσʔλʔ ͲͷΑ͏ʹͯ͠ϑΥʔδϯάͷ੒ޭ֬཰͕ܾ·Δͷ͔ʁ 4UBLF ҰఆྔͷτʔΫϯΛσϙδοτ " # $ % 1SPPG
    PG
    4UBLF
15. 1SPPG
    PG
    4UBLF /PUIJOH
    BU
    4UBLF໰୊ͱ௄േతΞϧΰϦζϜ4MBTIFS 1P4͸1P8ͱൺֱ͢Δͱ༏Ε͍ͯΔ఺͕͋Δ͕ɺ1P4ʹ΋γεςϜతͳ໰୊͕ଘࡏ͢ ΔɻͦΕ͕ɺ/PUIJOH
    BU
    4UBLF໰୊ɻ
    /PUIJOH
    BU
    4UBLF໰୊ͱ͸ɺϦεΫΛഎෛΘͣʹ༰қʹϒϩοΫੜ੒͕ߦ͑ͯ͠·͏ ໰୊ɻ1P4Ͱ͸ҰఆͷεςʔΫྔ͕͋Ε͹༰қʹෆਖ਼ͳϒϩοΫΛ࡞Δ͜ͱ͕Ͱ͖Δ ঢ়گ͕࡞ΒΕ·͢ɻ͜ͷঢ়گΛར༻ͯ͠ෆਖ਼ͳϒϩοΫΛੜ੒͠ɺॏૹۚ໰୊Λൃੜ ͤ͞Δ͜ͱ͕༰қʹͰ͖ΔΑ͏ʹͳͬͯ͠·͏ɻ
    ͜ͷ/PUIJOH
    BU
    4UBLF໰୊Λղܾ͢ΔͨΊʹɺ&UIFSFVNͷ1P4Ͱ͸ʮ4MBTIFSʯ ͱݺ͹ΕΔ௄േతΞϧΰϦζϜ͕ಋೖ͞Ε·͢ɻ ਖ਼֬ʹ͸ಋೖ͞ΕΔ༧ఆͰ͢
    4MBTIFSͱ͸1P4Ͱෆਖ਼ΛߦͬͨϢʔβʔͷεςʔΫΛ຅ऩ͢Δ࢓૊ΈͰɺ͜ͷ௄േ తΞϧΰϦζϜͷಋೖʹΑΓɺෆਖ਼ͳϒϩοΫੜ੒ͳͲΛߦ͏ϦεΫΛେ͖͘͠·͢ɻ
    ͜ͷෆਖ਼Λߦ͏ϦεΫΛେ͖͘͢Δ͜ͱʹΑΓɺ/PUIJOH
    BU
    4UBLF໰୊Λղܾ͠·͢ɻ
16. &UIFSFVNͷ1P4
    $BTQFS
    
17. $BTQFSͷ࢓༷͸ͭߟ͑ΒΕ͍ͯΔ $BTQFS͸೥ࠒ͔Βߏ૝͕࢝·Γɺͭͷݚڀ࣮૷͕ߦΘΕ͍ͯΔɻ
    ͲͪΒ΋ιʔείʔυ͕(JU)VC্ʹެ։͞Ε͓ͯΓɺ
    ݱࡏ7JUBMJLߟҊͷ''(ܕͷ$BTQFS͕ςετωοτ্Ͱͷݕূ͕ਐΊΒΕ͍ͯΔɻ
    ''(͸׬શͳ$BTQFSͰ͸ͳ͘ɺ$BTQFSҠߦͷϓϩηεͰ༻͍Δ؆қ࣮૷ 'SJFOEMZ
    'JOBMJUZ
    (BEHFU
    ''(
    1P8ͱ1P4ͷϋΠϒϦοτܕ $PSSFDU
    CZ
    $POTUSVDUJPO
    $#$
    1P4ܕ
18. $BTQFS͸೥ࠒ͔Βߏ૝͕࢝·Γɺͭͷݚڀ࣮૷͕ߦΘΕ͍ͯΔɻ
    ͲͪΒ΋ιʔείʔυ͕(JUIVC্ʹެ։͞Ε͓ͯΓɺ
    ݱࡏ7JUBMJLߟҊͷ''(ܕͷ$BTQFS͕ςετωοτ্Ͱͷݕূ͕ਐΊΒΕ͍ͯΔɻ
    ''(͸׬શͳ$BTQFSͰ͸ͳ͘ɺ$BTQFSҠߦͷϓϩηεͰ༻͍Δ؆қ࣮૷ $PSSFDU
    CZ
    $POTUSVDUJPO
    $#$
    1P4ܕ 'SJFOEMZ
    'JOBMJUZ
    (BEHFU
    ''(
    1P8ͱ1P4ͷϋΠϒϦοτܕ $BTQFSͷ࢓༷͸ͭߟ͑ΒΕ͍ͯΔ $BTQFS
    όʔδϣϯͰಋೖ͞ΕΔ༧ఆͷ࣮૷͸ͬͪ͜
19. $BTQFS΁ͷҠߦ͸ଟஈ֊తʹߦΘΕΔ༧ఆ &UIBTI 1P8্ʹల։͢Δ1P4
    1P8ͰϒϩοΫΛϚΠχϯάޙɺ
 1P4ͰϑΝΠφϥΠζ 1P8ͱ1P4ͷϋΠϒϦοτӡ༻
 ϚΠχϯάใुΛݮগ͠ɺ
 7BMJEBUPSͷใुΛ૿΍͢ʣ $BTQFS
    1P4     ݚڀ։ൃ͕ελʔτ͠ݕূ͕ਐΊΒΕ͍ͯΔ
    $BTQFSόʔδϣϯͰ͸1P4
    ''(͕ಋೖ͞ΕΔ༧ఆ
    Ҏ߱ͷৄࡉͳٕज़࢓༷ͳͲ͸ܾ·͍ͬͯͳ͍ $BTQFSҠߦͷϩʔυϚοϓ
20. ϒϩοΫ໨ ϒϩοΫ໨ ϒϩοΫ໨ ''(͸1P8ͰϒϩοΫΛੜ੒Λߦ͍ɺ1P4Λ༻͍ͯϝΠϯνΣʔϯΛܾఆ͢Δɻ 1P8 ͷ্ʹ1P4͕৐͔ͬͬͯಈ͘Πϝʔδ
    ϒϩοΫຖʹʮνΣοΫϙΠϯτʯͱݺ͹ΕΔ۠੾ΓΛઃఆɻ
    νΣοΫϙΠϯτ͝ͱʹ༗ޮͩͱࢥ͏νΣʔϯͷϒϩοΫΛόϦσʔλʔͷ౤ථʹΑ Γܾఆ͢Δɻ
    ܾఆʹ͸ஈ֊ͷϥ΢ϯυΛ౿Έɺϥ΢ϯυ໨ ϒϩοΫ໨ Ͱਖ਼౰Խ KVTUJpFE ɻ ϥ΢ϯυ໨ ϒϩοΫ໨ Ͱ֬ఆ 'JOBMJ[F ͞ΕΔɻ $BTQFS
    ''(͸1P8ͱ1P4ͷϋΠϒϦοτ $BTQFS
    'SJFOEMZ
    'JOBMJUZ
    (BEHFU
    1P8ͷ্ʹ1P4͕৐͔ͬͯಈ͘Πϝʔδ 1SPPG
    PG
    8PSL 1SPPG
    PG
    4UBLF ˞''(͸8IJUF1BQFSͰ঺հ͞Εͨ࢓૊Έͳ ͷͰɺࠓޙมΘΔՄೳੑେ
21. ''(͸1P8ͰϒϩοΫΛੜ੒Λߦ͍ɺ#'54UZMF
    104Λ༻͍ͯϝΠϯνΣʔϯΛܾ ఆ͢Δɻ 1P8ͷ্ʹ1P4͕৐͔ͬͬͯಈ͘Πϝʔδ
    ϒϩοΫຖʹʮνΣοΫϙΠϯτʯͱݺ͹ΕΔ۠੾ΓΛઃఆɻ
    νΣοΫϙΠϯτ͝ͱʹ༗ޮͩͱࢥ͏νΣʔϯͷϒϩοΫΛόϦσʔλʔͷ౤ථʹΑ Γܾఆ͢Δɻ
    ܾఆʹ͸ஈ֊ͷϥ΢ϯυΛ౿Έɺϥ΢ϯυ໨ ϒϩοΫ໨ Ͱਖ਼౰Խ KVTUJpFE ɻ ϥ΢ϯυ໨ ϒϩοΫ໨ Ͱ֬ఆ 'JOBMJ[F ͞ΕΔɻ ϒϩοΫ໨ ϒϩοΫ໨ ϒϩοΫ໨ $BTQFS
    ''(͸1P8ͱ1P4ͷϋΠϒϦοτ $BTQFS
    'SJFOEMZ
    'JOBMJUZ
    (BEHFU
    1P8ͷ্ʹ1P4͕৐͔ͬͯಈ͘Πϝʔδ 1SPPG
    PG
    8PSL 1SPPG
    PG
    4UBLF pOBMJ[FE
    
    KVTUJpFE pOBMJ[FE
    
    KVTUJpFE
22. ·ͱΊ ɾ&UIFSFVN͸େܕΞοϓσʔτΛ࣮ࢪ͠ɺਐԽΛଓ͚͍ͯΔ
    ɾ$BTQFSͷಋೖ͸ଟஈతʹߦΘΕ͍ͯ͘༧ఆͰɺݱࡏݚڀ։ൃ ͢͢ΊΒΕ͍ͯΔ
    ɾ$BTQFSҠߦ΁ͷୈҰஈ֊ͱͯ͠1P8ͱ1P4ͷֻ͚߹Θͤͨ ''(ͱݺ͹ΕΔ࢓૊Έ͕ಋೖ͞ΕΔ༧ఆ
23. ࢀߟࢿྉ w
    *OUSPEVDJOH
    $BTQFS
    lUIF
    'SJFOEMZ
    (IPTUz
    w
    6OEFSTUBOEJOH
    4FSFOJUZ
    1BSU
    
    $BTQFS
    w
    $BTQFS
    'SJFOEMZ
    'JOBMJUZ
    (BEHFU
    XIJUF
    QBQFS
    w
    1SPPG
    PG
    4UBLF
    '2
    (JUIVC
    w
    $BTQFS
    7FSTJPO
    
    *NQMFNFOUBUJPO
    (VJEF
24. ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠