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ブロックチェーン概論 / Introduction to Blockchains
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Kenji Saito
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June 09, 2017
Technology
570
4
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ブロックチェーン概論 / Introduction to Blockchains
ブロックチェーンハブ主催で開催した「ブロックチェーン概論」のスライドです。2017年6月9日(金) に Clip ニホンバシにて使用しました。
Kenji Saito
PRO
June 09, 2017
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Transcript
SFC / CSO
[email protected]
— — 2017-06-09 – p.1/38
( ) SFC ( ) CSO (Chief Science Officer) CEO
1993 M.Eng ( ) 2006 ( ) SFC 16 P2P 2011 → ( ) — — 2017-06-09 – p.2/38
— — 2017-06-09 – p.3/38
(by Satoshi Nakamoto) Satoshi ( ) (block; , ) (chain;
) — — 2017-06-09 – p.4/38
( ) P2P ( ) (double spending) ⇒ ( )
← — — 2017-06-09 – p.5/38
/DLT(Distributed Ledger Technology) ( ) Bitcoin ( ) Open Assets
Protocol (OAP) ( ) Ethereum ( ) Enterprise Ethereum Alliance (↓ ) ( ) Hyperledger (Linux Foundation) Fabric (IBM), Sawtooth (Intel), Iroha ( ) Corda (R3) — — 2017-06-09 – p.6/38
(1) — — — 2017-06-09 – p.7/38
(2) — RSA, DSA, ECDSA ( DSA; ), etc. RSA
← ( ) — — 2017-06-09 – p.8/38
( ) 1. 10 ( ) 2. 3. 1 —
— 2017-06-09 – p.9/38
/DLT End-to-End ( ) ( ) — — 2017-06-09 –
p.10/38
( / ) EVM ( ) EVM (Ethereum Virtual Machine)
Gas ( CPU ) — — 2017-06-09 – p.11/38
— — 2017-06-09 – p.12/38
(Hyperledger ) ( ) ( ) ( ) IoT /
/ ( ) — — 2017-06-09 – p.13/38
: . . . : Proof of Existence, Everledger, Factom,
. . . (OP_RETURN ) ( ) ( ) — — 2017-06-09 – p.14/38
( KVS DHT) — — 2017-06-09 – p.15/38
— — 2017-06-09 – p.16/38
(2014.2-2016.1) — — 2017-06-09 – p.17/38
vs. — — 2017-06-09 – p.18/38
The DAO ( ) The DAO Split ( ) 360
ETH (50∼60 ) (2016/6/17) ( → ) ( → ; ) ( ) (2016/7/20 ) — — 2017-06-09 – p.19/38
— — 2017-06-09 – p.20/38
: ⇒ ⇒ — — 2017-06-09 – p.21/38
Ether Ether Ether . . . BTC Everledger, Factom OAP
⇒ — — 2017-06-09 – p.22/38
3 1. ( : UTXO ) ⇒ ( ) 2.
( : ) ⇒ 3. ( : ) TX ⇒ 2 3 — — 2017-06-09 – p.23/38
— — 2017-06-09 – p.24/38
( ) (by ) (since 1984) ( ) ( )
( ) . . . ( ) — — 2017-06-09 – p.25/38
( ) ( ) ( ) ( ) ( )
(by ) — — 2017-06-09 – p.26/38
Q. ( ) ( = / = ) ⇒ —
— 2017-06-09 – p.27/38
( ) ( ) ( ) — — 2017-06-09 –
p.28/38
( ) / / — — 2017-06-09 – p.29/38
— 1. ( ) 2. ( ) 3. ( )
— — 2017-06-09 – p.30/38
→ 30 : × — — 2017-06-09 – p.31/38
OS (2007) — — 2017-06-09 – p.32/38
Amazon Go → — — 2017-06-09 – p.33/38
( JPY ) MUFG (“Cause-Oriented Economy”) ⇒ — — 2017-06-09
– p.34/38
(4 ) ( ) — — 2017-06-09 – p.35/38
( ) → (AI ) → ← → → /
/ — — 2017-06-09 – p.36/38
( 6 ) / ( 4 ×2) clip ( /
) https://www.blockchainhub.co.jp/lectures/ — — 2017-06-09 – p.37/38
— — 2017-06-09 – p.38/38