ブロックチェーンの課題を乗り越えて、我々はどこに向かうのか / Where Do We Go Beyond Blockchain

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— SFC — 2018-05-29 – p.1/29

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( ) SFC ( ) CSO (Chief Science Ofﬁcer) 1993 ( ) 2006 ( ) SFC 17 P2P (Peer-to-Peer) 2011 → ( ) — 2018-05-29 – p.2/29

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( R&D, 2017.12) : SF + + 2048 — 2018-05-29 – p.3/29

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— 2018-05-29 – p.4/29

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— 2018-05-29 – p.5/29

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( ) (1) (2) (3) (4) ( ) state machine replication (1984) — 2018-05-29 – p.6/29

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1) = ( , , ) 2) 3) ⇒ ( ) ⇒ · / (dependable ) — 2018-05-29 – p.7/29

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/DLT ( ) Bitcoin ( ) Open Assets Protocol (OAP) ( ) Ethereum ( ) ( ) Enterprise Ethereum Alliance (↓ ) (DLT: Distributed Ledger Technology) ( ) Hyperledger (Linux Foundation) Fabric (IBM/DAH), Sawtooth (Intel), Iroha ( ) Corda (R3), Tangle (IOTA), . . . , BBc-1 ( ) — 2018-05-29 – p.8/29

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(1) ( ) ⇒ P2P ( ) ⇒ — 2018-05-29 – p.9/29

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(2) (double spending) ( ) ⇒ ⇒ ( ) ⇒ ⇒ → → ⇒ → — 2018-05-29 – p.10/29

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— — 2018-05-29 – p.11/29

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/ (1) 2,100 cm3 (cc) 1 1cm3 10 12.5cm3 ⇒ ⇒ ( ) — 2018-05-29 – p.12/29

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/ (2) ( ) ( ) ( ) ( ) ( ) → ( ) — 2018-05-29 – p.13/29

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∼ ท൪߸O ท൪߸O ท൪߸O લทͷμΠδΣετ λʔήοτҎԼͰͳ͍ͱ͍͚ͳ͍ ͸Έͩ͠ίʔφʔ μΠδΣετ͕λʔήοτҎԼʹͳΔΑ͏ʹೖΕΔద౰ͳ಺༰ ( ) → — 2018-05-29 – p.14/29

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∼ ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ͬͪ͜ͷྺ࢙͕༗ޮ ( ) — 2018-05-29 – p.15/29

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/DLT ਖ਼౰ੑͷอূ ྫ6590ߏ଄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 — 2018-05-29 – p.16/29

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/DLT Bitcoin, Ethereum DLT BBc-1 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) Ethereum ( ) ( ) — 2018-05-29 – p.17/29

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( ( )) ( ) DLT ( ) ( ) ( ) BBc-1 ( ) — 2018-05-29 – p.18/29

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— 2018-05-29 – p.19/29

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/DLT ( ) ( ) ( vs. ) ( ) ( ) ( ) ⇒ ( : BBc-1) DLT : : — 2018-05-29 – p.20/29

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→ ( ) — 2018-05-29 – p.21/29

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C V C ≥ V Bitcoin ( ) bitcoin Bitcoin ( ) Ethereum DLT ( ) BBc-1 ( ) ( ) C ≥ V (proactive) (introspection ( ) ) ( ) — 2018-05-29 – p.22/29

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— 2018-05-29 – p.23/29

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Ethereum ( ) ( ) ⇒ (Casper) ( ) ⇒ ZoE (Zcash on Ethereum) ( vs. ) ( ) ⇒ Plasma ( ) ⇒ ( ) (Benevolent Dictator For Life (BDFL)) ( ) ⇒ — 2018-05-29 – p.24/29

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BBc-1 ( ) ( ) ⇒ ( ) ⇒ ( vs. ) ( ) ⇒ DHT ( ) ⇒ ( ) ( ) ⇒ — 2018-05-29 – p.25/29

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Beyond Blockchain One (BBc-1) https://beyond-blockchain.org https://github.com/beyond-blockchain 2017 10 31 2018 5 22 core v1.0 ofﬁ[email protected] — 2018-05-29 – p.26/29

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⇒ BBc-1 ( ) ( ) ( ) — 2018-05-29 – p.27/29

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— ( . . . ) QR ⇒ — 2018-05-29 – p.28/29

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AI → : — 2018-05-29 – p.29/29