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ブロックチェーン技術概論 / Overview of Blockchain Technology
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Kenji Saito
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August 26, 2020
Technology
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ブロックチェーン技術概論 / Overview of Blockchain Technology
2020年8月26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「ブロックチェーン技術概論」にて使用したスライドです。
Kenji Saito
PRO
August 26, 2020
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Transcript
90 Chief Science Officer /
[email protected]
— — 2020-08-26 –
p.1/39
https://speakerdeck.com/ks91 — — 2020-08-26 – p.2/39
( ) SFC ( ) CSO (Chief Science Officer) 1993
( ) 2006 ( ) SFC 20 P2P (Peer-to-Peer) ( 9 ) 2011 2018 2019 2019 2020 2020 → ( ) — — 2020-08-26 – p.3/39
(1) (2017) : SF + + SF (2048 ) 2048
— — 2020-08-26 – p.4/39
(2) 2049 (2019) : ( ) SF (2004 2014 2034
) 2049 — — 2020-08-26 – p.5/39
2020 9 60 (2020) : ( ) . . .
— — 2020-08-26 – p.6/39
— — 2020-08-26 – p.7/39
( ) ( )( ) — — 2020-08-26 – p.8/39
( ) ≥ ( / ) ( : TV )
— — 2020-08-26 – p.9/39
. . . YouTuber ( ) ( ) ( )
YouTube, Zoom, etc. ??? YouTube Zoom — — 2020-08-26 – p.10/39
(1) = { , , , }, = (2) (1)
(3) (1) ( ) ⇒ ( ) ⇒ · / (dependable ) — — 2020-08-26 – p.11/39
/LT(Ledger Technology) ( ) Bitcoin ( ) Open Assets Protocol
(OAP) ( ) Ethereum ( ) ( ) EOS (↓ ) ( / LT) ( ) Hyperledger (Linux Foundation) Fabric (IBM/DAH), Sawtooth (Intel), Iroha ( ) Corda (R3), BBc-1 ( ), etc. — — 2020-08-26 – p.12/39
/ (1) 2,100 cm3 (cc) 1 1cm3 10 6.25cm3 ⇒
⇒ ( ) — — 2020-08-26 – p.13/39
/ (2) ( ) ( ) ( ) ( )
( ) → ( ) — — 2020-08-26 – p.14/39
∼ UTXO (= ) → — — 2020-08-26 – p.15/39
∼ ท൪߸O ท൪߸O ท൪߸O લทͷμΠδΣετ λʔήοτҎԼͰͳ͍ͱ͍͚ͳ͍ Έͩ͠ίʔφʔ μΠδΣετ͕λʔήοτҎԼʹͳΔΑ͏ʹೖΕΔదͳ༰
( ) → — — 2020-08-26 – p.16/39
∼ ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O
ϖʔδ൪߸O ϖʔδ൪߸O ϖʔδ൪߸O ͬͪ͜ͷྺ࢙͕༗ޮ ( ) — — 2020-08-26 – p.17/39
/DLT ਖ਼ੑͷอূ ྫ6590ߏͱσδλϧॺ໊ ଘࡏੑͷূ໌ ྫ࡞ۀূ໌͖ϋογϡνΣʔϯ །Ұੑͷ߹ҙ ྫφΧϞτɾίϯηϯαε ϧʔϧͷهड़ ྫ#5$ͷҠస ɾ
τϥϯβΫγϣϯͷ༰͕վ͟ΜͰ͖ͣɺ ɾ ͦͷΞηοτʹؔ͢ΔաڈͷτϥϯβΫγϣϯྻʹরΒͯ͠ໃ६͕ͳ͘ɺ ɾ ͔ͭɺਖ਼ͳϢʔβʹΑΓೖ͞Ε͍ͯΔ͜ͱΛอূ͢Δ ɾաڈʹ͋ͬͨτϥϯβΫγϣϯͷূڌΛຣফͰ͖ͣɺ ɾ ͔ͭɺաڈʹͳ͔ͬͨτϥϯβΫγϣϯͷূڌΛ፻Ͱ͖ͳ͍ ɾໃ६͢Δ;ͨͭͷτϥϯβΫγϣϯ͕ೖ͞Εͨ߹ɺ ɹ ͍ͣΕ ؔ༩͢Δશһ͕ಉ͡ยํΛબΜͰྺ࢙ͷதʹҐஔ͚ͮΔ ɾΞϓϦέʔγϣϯϩδοΫ Կ͕ਖ਼͍͠τϥϯβΫγϣϯ͔ΛܾΊΔ — — 2020-08-26 – p.18/39
: ( ( ) ) — — 2020-08-26 – p.19/39
(Hyperledger ) ( ) ( ) ( ) ( )
IoT / / ( , ) — — 2020-08-26 – p.20/39
: . . . : Proof of Existence, Everledger, .
. . ( ) ( ) / × = — — 2020-08-26 – p.21/39
(1) — — 2020-08-26 – p.22/39
(2) ( ) ( ) ( ) — — 2020-08-26
– p.23/39
( ) ( ) / ( ) : : ,
— — 2020-08-26 – p.24/39
— — 2020-08-26 – p.25/39
( ) ( ) ( vs. ) ( ) (
) ( ) ⇒ ( : BBc-1) DLT : : — — 2020-08-26 – p.26/39
/ Bitcoin, Ethereum DLT BBc-1 ( ) ( ) (
) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ެڞۭؒ ɾτϥϯβΫγϣϯͷূڌΛແؔͳྺ࢙͕อ༗ ɾͲΕ͔ͷாΛແໃ६ʹॻ͖͑ͯূڌ͕Δ τϥϯβΫγϣϯ ா υϝΠϯ ϩʔΧϧۭؒ υϝΠϯ ϩʔΧϧۭؒ υϝΠϯ ϩʔΧϧۭؒ Ethereum ( ) → — — 2020-08-26 – p.27/39
— — 2020-08-26 – p.28/39
( ) (by ) (since 1984) ( ) ( )
( ) . . . ( ) Libra — — 2020-08-26 – p.29/39
( ) ( ) ( ) ( , ) (
) ( ) (by ) — — 2020-08-26 – p.30/39
: ⇒ LINE → → ( ) ( ) ⇒
( ) → → → . . . — — 2020-08-26 – p.31/39
( ( )) ( ) / / — — 2020-08-26
– p.32/39
— 1. ( ) 2. ( ) 3. ( )
— — 2020-08-26 – p.33/39
→ 30 : × — — 2020-08-26 – p.34/39
Amazon Go → — — 2020-08-26 – p.35/39
( JPY ) (MUFG) J S (“Cause-Oriented Economy”) ⇒ —
— 2020-08-26 – p.36/39
(4 ) ( ) — — 2020-08-26 – p.37/39
( ) → (AI ) → ← → → /
/ — — 2020-08-26 – p.38/39
— — 2020-08-26 – p.39/39