ブロックチェーン技術が抱える問題点とその解決アプローチ — Beyond Blockchain One の場合 — / Problems of Blockchain Technology and Their Solutions in Case of Beyond Blockchain One

2017年12月15日(金)、虎ノ門にて開催された KAULA Blockchain Meetup での講演で使用したスライドです。

1. — Beyond Blockchain One — / SFC ks91@sfc.wide.ad.jp — Beyond Blockchain One — 2017-12-15 – p.1/27
2. ( ) SFC ( ) CSO (Chief Science Officer) 1993 ( ) 2006 ( ) SFC 17 P2P (Peer-to-Peer) 2011 → ( ) — Beyond Blockchain One — 2017-12-15 – p.2/27
3. — Beyond Blockchain One — 2017-12-15 – p.3/27
4. ( ) (1) (2) (3) (4) ( ) ⇒ — Beyond Blockchain One — 2017-12-15 – p.4/27
5. ( ) (by ) (since 1984) ( ) ( ) ( ) . . . ( ) ⇒ state machine replication — Beyond Blockchain One — 2017-12-15 – p.5/27
6. ( ) ( ) ( ) ( ) ( ) ( ) (by ) — Beyond Blockchain One — 2017-12-15 – p.6/27
7. — Beyond Blockchain One — 2017-12-15 – p.7/27
8. 1) 2) 3) ⇒ ⇒ / (dependable ) — Beyond Blockchain One — 2017-12-15 – p.8/27
9. ( ) P2P ( ) (double spending) ( ) ⇒ ( ) → ( ) ( ) — Beyond Blockchain One — 2017-12-15 – p.9/27
10. / (1) 2,100 cm3 (cc) 1 1cm3 10 12.5cm3 ⇒ ⇒ ( ) — Beyond Blockchain One — 2017-12-15 – p.10/27
11. / (2) ( ) ( ) ( ) ( ) ( ) ( ) → ( ) — Beyond Blockchain One — 2017-12-15 – p.11/27
12. ∼ ( ) → — Beyond Blockchain One — 2017-12-15 – p.12/27
13. ∼ ( ) — Beyond Blockchain One — 2017-12-15 – p.13/27
14. /DLT ( ) Bitcoin ( ) Open Assets Protocol (OAP) ( ) Ethereum ( ) ( ) Enterprise Ethereum Alliance (↓ ) (DLT) ( ) ( ) Hyperledger (Linux Foundation) Fabric (IBM/DAH), Sawtooth (Intel), Iroha ( ) Corda (R3), Tangle (IOTA), . . . , BBc-1 ( ) — Beyond Blockchain One — 2017-12-15 – p.14/27
15. (Hyperledger ) ( ) ( ) ( ) IoT / / ( ) — Beyond Blockchain One — 2017-12-15 – p.15/27
16. /DLT ( ) ( ) ( ) ( vs. ) ( ) ( ) ( ) ⇒ ( : BBc-1) DLT : : — Beyond Blockchain One — 2017-12-15 – p.16/27
17. vs. : : : : : : : : : — Beyond Blockchain One — 2017-12-15 – p.17/27
18. Beyond Blockchain One (BBc-1) #JUDPJO ͦͷଞͷ ύϒϦοΫϨοδϟʔ BBc-1 ΦʔϓϯͰύϒϦοΫͳɹ
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    ෼ࢄϨοδϟʔ ෼ࢄετϨʔδ؅ཧ αʔόϨε
    ۃྗϝΠϯςφϯεϑϦʔ
    ͳ࣮ߦ؀ڥ ΞϓϦέʔγϣϯ ͦ ͷ ଞ ͞ · ͟ · ͳ Ξ ϓ Ϧ ͷ Մ ೳ ੑ σδλϧ௨՟ 4%, σδλϧΞηοτ "1* ##D ։ൃ߲໨ ҠߦΞγελϯτ ஍ Ҭ ௨ ՟ Ξ ϓ Ϧ ϙ Π ϯ τ Ξ ϓ Ϧ དྷ ྺ ূ ໌ Ξ ϓ Ϧ ʜ ॳظ λʔήοτ ॳظ λʔήοτ ॳظʹ͓͍ͯଘࡏূ໌Λґଘ ݸʑͷετϨʔδαʔϏε Մೳͳλʔήοτ 2017 10 31 (https://github.com/beyond-blockchain/bbc1) — Beyond Blockchain One — 2017-12-15 – p.18/27
19. ਖ਼౰ੑͷอূ 6590
    
    ࣝผࢠͱެ։ݤͷ෼཭
    υϝΠϯ಺Ͱͷݕূ ࠴ݖͱͯ͠ͷΞηοτ
    #Z[BOUJOF
    1BYPT
    ౳ ωΠςΟϒ௨՟Λ΋ͨͳ͍
    υϝΠϯ಺࣏ࣗ υϝΠϯؒͷཤྺަࠩ
    ॳظʹ͓͍ͯ͸ϒϩοΫνΣʔϯ΁ͷΞϯΧϦϯά ଘࡏͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε v1.0 (2018 2 ; v0.7) https://beyond-blockchain.org — Beyond Blockchain One — 2017-12-15 – p.19/27
20. ࣝผࢠ ෼཭ʂ ެ։ݤ ݕূՄೳ υϝΠϯ ه࿥ͷ಺༰͸ υϝΠϯͷ֎ʹग़ͳ͍ ࣙॻ ͜Ε΋ه࿥ UTXO ⇒ — Beyond Blockchain One — 2017-12-15 – p.20/27
21. (1) ⇒ — Beyond Blockchain One — 2017-12-15 – p.21/27
22. (2) → DAG (Directed Acyclic Graph) ⇒ ( ) — Beyond Blockchain One — 2017-12-15 – p.22/27
23. ( → ) ⇒ — Beyond Blockchain One — 2017-12-15 – p.23/27
24. BBc-1 — Beyond Blockchain One — 2017-12-15 – p.24/27
25. BBc Trust ( ) — https://beyond-blockchain.org/public/bbc-trust.pdf — https://beyond-blockchain.org/public/bbc-trust_ja.pdf Design Paper (white paper) ( revision 0.1) — https://beyond-blockchain.org/public/bbc1-design-paper.pdf — https://beyond-blockchain.org/public/BBc-1-press-release20171031.pdf — https://beyond-blockchain.org/public/BBc-1-introduction-and-showcase20171031a.pdf — Beyond Blockchain One — 2017-12-15 – p.25/27
26. 1 BBc-1 https://github.com/beyond-blockchain/bbc1 v0.7.2 ( v ) ( OK) Xmas pull request beyond-blockchain.org technical steering committee — Beyond Blockchain One — 2017-12-15 – p.26/27
27. , — , R&D (2017-12-25 ) — Beyond Blockchain One — 2017-12-15 – p.27/27