ブロックチェーン 〜 基礎と応用 - 可能性と不可能性 / Blockchains - Basics and Applications - Possibilities and Impossibilities

2017年4月27日(木)、一橋大学 大学院国際企業戦略研究科にてゲスト講義を行った際に使用したスライドです。

Transcript

1. * ∼ SFC / CSO ks91@sfc.wide.ad.jp ∼ — — 2017-04-27 – p.1/31
2. ( ) SFC ( ) CSO (Chief Science Officer) CEO 1993 M.Eng ( ) 2006 ( ) SFC 16 P2P 2011 → ∼ — — 2017-04-27 – p.2/31
3. (by Satoshi Nakamoto) Satoshi ( ) (block; , ) (chain; ) ∼ — — 2017-04-27 – p.3/31
4. ( ) P2P ( ) (double spending) ⇒ ( ) ← ∼ — — 2017-04-27 – p.4/31
5. /DLT ( ) Bitcoin ( ) Open Assets Protocol (OAP) ( ) Ethereum ( ) Enterprise Ethereum (↓ ) ( ) Hyperledger (Linux Foundation) Fabric (IBM/DAH), Sawtooth Lake (Intel), Iroha ( ) Corda (R3) ∼ — — 2017-04-27 – p.5/31
6. (1) — ∼ — — 2017-04-27 – p.6/31
7. (2) — RSA, DSA, ECDSA ( DSA; ), etc. RSA ← ( ) ∼ — — 2017-04-27 – p.7/31
8. ( ) 1. 10 ( ) 2. 3. 1 ∼ — — 2017-04-27 – p.8/31
9. /DLT End-to-End ( ) ( ) ∼ — — 2017-04-27 – p.9/31
10. ( / ) EVM ( ) EVM (Ethereum Virtual Machine) Gas ( CPU ) ∼ — — 2017-04-27 – p.10/31
11. ∼ — — 2017-04-27 – p.11/31
12. (Hyperledger ) ( ) ( ) ( ) IoT / / ( ) ∼ — — 2017-04-27 – p.12/31
13. : . . . : Proof of Existence, Everledger, Factom, . . . (OP_RETURN ) ( ) ( ) ∼ — — 2017-04-27 – p.13/31
14. ( KVS DHT) ∼ — — 2017-04-27 – p.14/31
15. ∼ — — 2017-04-27 – p.15/31
16. (2014.2-2016.1) ∼ — — 2017-04-27 – p.16/31
17. vs. ∼ — — 2017-04-27 – p.17/31
18. The DAO ( ) The DAO Split ( ) 360 ETH (50∼60 ) (2016/6/17) ( ) ( ; ) (2016/7/20 ) ∼ — — 2017-04-27 – p.18/31
19. ∼ — — 2017-04-27 – p.19/31
20. : ⇒ ⇒ ∼ — — 2017-04-27 – p.20/31
21. Ether Ether Ether . . . BTC Everledger, Factom OAP ⇒ ∼ — — 2017-04-27 – p.21/31
22. 3 1. ( : UTXO ) ⇒ ( ) 2. ( : ) ⇒ 3. ( : ) TX ⇒ 2 3 ∼ — — 2017-04-27 – p.22/31
23. ∼ — — 2017-04-27 – p.23/31
24. Q. ( ) ( = / = ) ⇒ ∼ — — 2017-04-27 – p.24/31
25. ( ) / / ∼ — — 2017-04-27 – p.25/31
26. — 1. ( ) 2. ( ) 3. ( ) ∼ — — 2017-04-27 – p.26/31
27. → 30 : × ∼ — — 2017-04-27 – p.27/31
28. OS (2007) ∼ — — 2017-04-27 – p.28/31
29. Amazon Go → ∼ — — 2017-04-27 – p.29/31
30. ( JPY ) MUFG (“Cause-Oriented Economy”) ⇒ ∼ — — 2017-04-27 – p.30/31
31. — ( ) ( ↔ ) ∼ — — 2017-04-27 – p.31/31