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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...
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Kenji Saito
PRO
December 15, 2017
Technology
1
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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。
Kenji Saito
PRO
December 15, 2017
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Transcript
— Beyond Blockchain One — / SFC
[email protected]
— Beyond
Blockchain One — 2017-12-15 – p.1/27
( ) SFC ( ) CSO (Chief Science Officer) 1993
( ) 2006 ( ) SFC 17 P2P (Peer-to-Peer) 2011 → ( ) — Beyond Blockchain One — 2017-12-15 – p.2/27
— Beyond Blockchain One — 2017-12-15 – p.3/27
( ) (1) (2) (3) (4) ( ) ⇒ —
Beyond Blockchain One — 2017-12-15 – p.4/27
( ) (by ) (since 1984) ( ) ( )
( ) . . . ( ) ⇒ state machine replication — Beyond Blockchain One — 2017-12-15 – p.5/27
( ) ( ) ( ) ( ) ( )
( ) (by ) — Beyond Blockchain One — 2017-12-15 – p.6/27
— Beyond Blockchain One — 2017-12-15 – p.7/27
1) 2) 3) ⇒ ⇒ / (dependable ) — Beyond
Blockchain One — 2017-12-15 – p.8/27
( ) P2P ( ) (double spending) ( ) ⇒
( ) → ( ) ( ) — Beyond Blockchain One — 2017-12-15 – p.9/27
/ (1) 2,100 cm3 (cc) 1 1cm3 10 12.5cm3 ⇒
⇒ ( ) — Beyond Blockchain One — 2017-12-15 – p.10/27
/ (2) ( ) ( ) ( ) ( )
( ) ( ) → ( ) — Beyond Blockchain One — 2017-12-15 – p.11/27
∼ ( ) → — Beyond Blockchain One — 2017-12-15
– p.12/27
∼ ( ) — Beyond Blockchain One — 2017-12-15 –
p.13/27
/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
(Hyperledger ) ( ) ( ) ( ) IoT /
/ ( ) — Beyond Blockchain One — 2017-12-15 – p.15/27
/DLT ( ) ( ) ( ) ( vs. )
( ) ( ) ( ) ⇒ ( : BBc-1) DLT : : — Beyond Blockchain One — 2017-12-15 – p.16/27
vs. : : : : : : : : :
— Beyond Blockchain One — 2017-12-15 – p.17/27
Beyond Blockchain One (BBc-1) #JUDPJO ͦͷଞͷ ύϒϦοΫϨοδϟʔ BBc-1 ΦʔϓϯͰύϒϦοΫͳɹࢄϨοδϟʔ ࢄετϨʔδཧ
αʔόϨε ۃྗϝΠϯςφϯεϑϦʔ ͳ࣮ߦڥ 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
ਖ਼ੑͷอূ 6590 ࣝผࢠͱެ։ݤͷ υϝΠϯͰͷݕূ ࠴ݖͱͯ͠ͷΞηοτ #Z[BOUJOF1BYPT ωΠςΟϒ௨՟Λͨͳ͍ υϝΠϯ࣏ࣗ υϝΠϯؒͷཤྺަࠩ
ॳظʹ͓͍ͯϒϩοΫνΣʔϯͷΞϯΧϦϯά ଘࡏͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε v1.0 (2018 2 ; v0.7) https://beyond-blockchain.org — Beyond Blockchain One — 2017-12-15 – p.19/27
ࣝผࢠ ʂ ެ։ݤ ݕূՄೳ υϝΠϯ هͷ༰ υϝΠϯͷ֎ʹग़ͳ͍ ࣙॻ ͜Εه UTXO
⇒ — Beyond Blockchain One — 2017-12-15 – p.20/27
(1) ⇒ — Beyond Blockchain One — 2017-12-15 – p.21/27
(2) → DAG (Directed Acyclic Graph) ⇒ ( ) —
Beyond Blockchain One — 2017-12-15 – p.22/27
( → ) ⇒ — Beyond Blockchain One — 2017-12-15
– p.23/27
BBc-1 — Beyond Blockchain One — 2017-12-15 – p.24/27
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
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
, — , R&D (2017-12-25 ) — Beyond Blockchain One
— 2017-12-15 – p.27/27