ビヨンドブロックチェーン基礎 / Beyond Blockchain Basics

2021年4月7日(水)、ブロックチェーンハブ主催のブロックチェーンアカデミー「ビヨンドブロックチェーン基礎」にて使用したスライドです。

Transcript

1. Chief Science Officer / ks91@blockchainhub.co.jp — — 2021-04-07 – p.1/32
2. https://speakerdeck.com/ks91 — — 2021-04-07 – p.2/32
3. ( ) SFC ( ) CSO (Chief Science Officer) 1993 ( ) 2006 ( ) SFC 20 P2P (Peer-to-Peer) ( 2019 9 ) 2011 2018 2019 2021 VR( ) → ( ) — — 2021-04-07 – p.3/32
4. Beyond Blockchain One (BBc-1) — — 2021-04-07 – p.4/32
5. Beyond Blockchain One (BBc-1) — — 2021-04-07 – p.5/32
6. — — 2021-04-07 – p.6/32
7. (BP : Blockchain Property ) BP-1 : BP-2 : BP-3 : ( ) ( ) BP-2 permissionless ( ) permissioned ( ) BP-2’ : — — 2021-04-07 – p.7/32
8. ( ) (1) (2) (3) (4) ( ) (BP-2 ) state machine replication BP-3 ( : ( )) ( ) — — 2021-04-07 – p.8/32
9. 1 : ( ) 2 : ( ) ⇒ ( ) ( ) ( ) ( ) ( ) → — — 2021-04-07 – p.9/32
10. / ( ) Bitcoin ( ) Open Assets Protocol (OAP) ( ) Ethereum ( ) ( ) Polkadot relay chain (parachains ↓ ) ( ) ( ) Hyperledger (Linux Foundation) Fabric (IBM/DAH), Sawtooth (Intel), Iroha ( ), Indy (Sovrin) Corda (R3), BBc-1 ( ) — — 2021-04-07 – p.10/32
11. / ਖ਼౰ੑͷอূ ྫ
    
    6590
    ߏ଄ͱσδλϧॺ໊ ଘࡏੑͷূ໌ ྫ
    
    ࡞ۀূ໌෇͖ϋογϡνΣʔϯ །Ұੑͷ߹ҙ ྫ
    
    φΧϞτɾίϯηϯαε ϧʔϧͷهड़ ྫ
    
    #5$
    ͷҠస ɾ
    τϥϯβΫγϣϯͷ಺༰͕վ͟ΜͰ͖ͣɺ ɾ
    ͦͷΞηοτʹؔ͢ΔաڈͷτϥϯβΫγϣϯྻʹরΒͯ͠ໃ६͕ͳ͘ɺ ɾ
    ͔ͭɺਖ਼౰ͳϢʔβʹΑΓ౤ೖ͞Ε͍ͯΔ͜ͱΛอূ͢Δ ɾաڈʹ͋ͬͨτϥϯβΫγϣϯͷূڌΛຣফͰ͖ͣɺ ɾ
    ͔ͭɺաڈʹͳ͔ͬͨτϥϯβΫγϣϯͷূڌΛ፻଄Ͱ͖ͳ͍ ɾໃ६͢Δ;ͨͭͷτϥϯβΫγϣϯ͕౤ೖ͞Εͨ৔߹ɺ ɹ ͍ͣΕ
    ؔ༩͢Δશһ͕ಉ͡ยํΛબΜͰྺ࢙ͷதʹҐஔ͚ͮΔ ɾΞϓϦέʔγϣϯϩδοΫ
    Կ͕ਖ਼͍͠τϥϯβΫγϣϯ͔ΛܾΊΔ — — 2021-04-07 – p.11/32
12. ( ) ↑ (BP-2 BP-2’ ) — — 2021-04-07 – p.12/32
13. ( ) ( ) — — 2021-04-07 – p.13/32
14. ( ) ( ) BP-2 ( ) — — 2021-04-07 – p.14/32
15. / Bitcoin, Ethereum BBc-1 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ެڞۭؒ ɾτϥϯβΫγϣϯͷূڌΛແؔ܎ͳྺ࢙͕อ༗ ɾͲΕ͔ͷ୆ாΛແໃ६ʹॻ͖׵͑ͯ΋ূڌ͕࢒Δ τϥϯβΫγϣϯ ୆ா υϝΠϯ ϩʔΧϧۭؒ υϝΠϯ ϩʔΧϧۭؒ υϝΠϯ ϩʔΧϧۭؒ Ethereum ( ) — — 2021-04-07 – p.15/32
16. ( ( )) (BP-2 : ) ( ) ( ) : ( ) ( ) ( ) BBc-1 ( ; ) — — 2021-04-07 – p.16/32
17. — — 2021-04-07 – p.17/32
18. / ( ) ( ) ( vs. ) ( ) ( ) ( ) ⇒ ( : BBc-1) : : — — 2021-04-07 – p.18/32
19. → ( ) → — — 2021-04-07 – p.19/32
20. C V C ≥ V Bitcoin ( ) bitcoin Bitcoin ( ) Ethereum ( ) BBc-1 (PoCX) ( ) C ≥ V (proactive) (introspection ( ) ) ( ) — — 2021-04-07 – p.20/32
21. — — 2021-04-07 – p.21/32
22. Ethereum ( ) ⇒ (Casper) ( ) ⇒ ZoE (Zcash on Ethereum) ( vs. ) ( ) ⇒ Plasma ( ) ⇒ ( ) (Benevolent Dictator For Life (BDFL)) ( ) ⇒ — — 2021-04-07 – p.22/32
23. DPoS (Delegated Proof of Stake) PoS Delegated ( ) stake . . . stake stake . . . — — 2021-04-07 – p.23/32
24. BBc-1 ( ) ⇒ ( ) ⇒ ( vs. ) ( ) ⇒ DHT ( ) ⇒ ( ) ( ) ⇒ — — 2021-04-07 – p.24/32
25. Beyond Blockchain One (BBc-1) https://beyond-blockchain.org https://github.com/beyond-blockchain (2017 10 31 ) office@beyond-blockchain.org — — 2021-04-07 – p.25/32
26. ( ) — — 2021-04-07 – p.26/32
27. — — 2021-04-07 – p.27/32
28. Beyond Blockchain One (BBc-1) #JUDPJO ##D
    $PSF ϨοδϟʔαϒγεςϜ ΞϓϦέʔγϣϯ ͦ ͷ ଞ ͞ · ͟ · ͳ Ξ ϓ Ϧ ͷ Մ ೳ ੑ ڞ௨ϥΠϒϥϦ ##D ։ൃ߲໨ ஍ Ҭ ௨ ՟ Ξ ϓ Ϧ ϙ Π ϯ τ Ξ ϓ Ϧ དྷ ྺ ূ ໌ Ξ ϓ Ϧ ʜ ॳظʹ͓͍ͯଘࡏূ໌Λґଘ ΞϯΧϦϯά ֤ϊʔυʹ͓͚Δه࿥ʹ͸ ֤छσʔλϕʔεΛར༻Մೳ TRMJUF
    
    .Z42-
    
    ͦͷଞ
    %# BBc-1 σδλϧ௨՟ϥΠϒϥϦ ͦͷଞͷϥΠϒϥϦ CCDMJC 1ZUIPO
    (P +4
    FUD ( ) ( ) — — 2021-04-07 – p.28/32
29. BBc-1 ਖ਼౰ੑͷอূ 6590 جຊߏ଄ εςʔτ؅ཧ΋Մ
    
    ࣝผࢠͱެ։ݤͷ෼཭
    ଟ༷ͳॺ໊ཁٻ
    υϝΠϯ಺Ͱͷݕূ αΠϯϦΫΤετ
    ࠴ݖͱͯ͠ͷΞηοτ
    #Z[BOUJOF
    1BYPT
    ଱ো֐ੑ ౳ ωΠςΟϒ௨՟Λ΋ͨͳ͍
    υϝΠϯ಺࣏ࣗ υϝΠϯؒͷཤྺަࠩʹΑΔίϯςΩετূ໌
    ॳظʹ͓͍ͯ͸ϒϩοΫνΣʔϯ΁ͷΞϯΧϦϯά ଘࡏੑͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε — — 2021-04-07 – p.29/32
30. BBc-1 — — 2021-04-07 – p.30/32
31. BBc Trust ( ) — https://beyond-blockchain.org/public/bbc-trust.pdf — https://beyond-blockchain.org/public/bbc-trust_ja.pdf Design Paper (white paper) ( revision 0.2) — https://beyond-blockchain.org/public/bbc1-design-paper.pdf gihyo.jp ∼BBc-1 Beyond Blockchain One — https://gihyo.jp/dev/serial/01/bbc1 — — 2021-04-07 – p.31/32
32. — — 2021-04-07 – p.32/32