é–“¸œ¨®ƒ‡‚¸‚ƒ«é€è²¨ ¯¾ é–“®ƒ‡‚¸‚ƒ«é€è²¨

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経済思想をご専門にされている、東京外国語大学の中山智香子教授のゼミにお邪魔して、ビットコインについて話してきました。

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  • 1. ks91@sfc.wide.ad.jp 2014-02-10 p.1/47

2. 2014-02-10 p.2/47 3. 2014-02-10 p.2/47 4. 360 ( , 2014 1 31 2014-02-10 p.2/47 5. 360 ( , 2014 1 31 2014-02-10 p.2/47 6. http://twitter.com/ks91020 http://www.facebook.com/ks91media : 2014-02-10 p.3/47 7. http://twitter.com/ks91020 http://www.facebook.com/ks91media : 2014-02-10 p.3/47 8. NEO : SF http://grsj.jp/neo.pdf (CC-BY-SA 3.0) 2014-02-10 p.4/47 9. () () () () () 2014-02-10 p.5/47 10. . . . 2014-02-10 p.6/47 11. 2014-02-10 p.7/47 12. 2014-02-10 p.8/47 13. . . . 2014-02-10 p.9/47 14. . . . . . .. . . p.91 2014-02-10 p.10/47 15. . . . . . .. . . p.91 / / / . . . / 2014-02-10 p.10/47 16. () 2014-02-10 p.11/47 17. AAdam 24 100 2014-02-10 p.12/47 18. BZ AAdam Bob 100 Adam Zoe 100 Adam . . . 2014-02-10 p.12/47 19. BZ AAdam Bob 100 Bob Carole 100 . . . C DZoe Adam 100 2014-02-10 p.12/47 20. BZ A24 Adam Adam 100 . . . D 2014-02-10 p.12/47 21. BZ A D . . . 2014-02-10 p.12/47 22. () 2 . . . 2014-02-10 p.13/47 23. 2014-02-10 p.14/47 24. 1. 2. 3. 1 2 3 . . . 2014-02-10 p.15/47 25. We are the 99%! 2014-02-10 p.16/47 26. 1% 85 50% http://www.cnn.co.jp/business/35042859.html 85 vs. 35 2014-02-10 p.17/47 27. . . . . . . . . . . . . . . . . . . . . . B. 1. 2. 2014-02-10 p.18/47 28. 2014-02-10 p.19/47 29. () () () http://www.post.japanpost.jp/service/letax/index.html http://enaiyo.post.japanpost.jp/mpt/ () 2014-02-10 p.20/47 30. Satoshi Nakamoto, Bitcoin: A Peer-to-Peer Electronic Cash System, 2009 P2P http://bitcoin.org/http://www.bitcoin.co.jp BTC 2013 11 1BTC 10 2014-02-10 p.21/47 31. BTC- - / - - - 2014-02-10 p.22/47 32. () 2014-02-10 p.23/47 33. . . . . . . NHK 9 . . . / . . . . . . = 2014-02-10 p.24/47 34. 2014-02-10 p.25/47 35. - SHA-1 (160bit ) SHA-256 (256bit ) 2014-02-10 p.26/47 36. - 2014-02-10 p.27/47 37. () 2014-02-10 p.28/47 38. POW (Proof Of Work) BTC ( 25BTC) 2014-02-10 p.29/47 39. 2100 BTC 10 1 BTC 4 (2009 50BTC ) 2140 2100 BTC . . . 1BTC 2014-02-10 p.30/47 40. 2014-02-10 p.31/47 41. (1)GPGPU FPGA ASIC () 2014-02-10 p.32/47 42. (2)() 2014-02-10 p.33/47 43. (3) () 2014-02-10 p.34/47 44. 2014-02-10 p.35/47 45. () 2014-02-10 p.35/47 46. () POW ()() 2014-02-10 p.35/47 47. () POW ()()3 () () () 2014-02-10 p.35/47 48. () POW ()()3 () () () http://member.wide.ad.jp/tr/wide-tr-ideon-bitcoin2013-00.pdf 2014-02-10 p.35/47 49. . . . ()/ . . . 2014-02-10 p.36/47 50. Litecoin (https://litecoin.org) Dogecoin (http://dogecoin.com) Litecoin . . . 2014-02-10 p.37/47 51. 2014-02-10 p.38/47 52. 24 . . . = The economics of the future are somewhat different. You see, money doesnt exist in the 24th century. . . . The acquisition of wealth is no longer the driving force in our lives. We work to better ourselves and the rest of humanity. Capt. Jean-Luc Picard 2014-02-10 p.39/47 53. 2014-02-10 p.40/47 54. 2014-02-10 p.40/47 55. 2014-02-10 p.41/47 56. () ()/()POW POW (ex. ) 2014-02-10 p.42/47 57. . . . http://www.media-art-online.org/iwat/SFC 2008 2014-02-10 p.43/47 58. , B If the world is saved, it will not be saved by people with the old vision and new programs. If the world is saved, it will be saved by people with a new vision and no programs. Daniel Quinn, The Story of B 2014-02-10 p.44/47 59. (=) () () 2014-02-10 p.45/47 60. http://academy-camp.org http://youtu.be/JTccTl2qLCo(2012 ) 2014-02-10 p.46/47 61. ( ) . . . Remember : Pro-social spending! () 2014-02-10 p.47/47