Bitcoin

A talk I gave about Bitcoin at the Pervasive Media Studio.

Transcript

1. Bitcoin
2. !/samphippen
3. What is Bitcoin?
5. It’s an Internet currency
6. Previous Internet currencies
11. Decentralized
12. No central authority
13. Peer to peer
14. No transaction fees
15. Globally useable
16. No one to freeze your account
17. No arbitrary limits
18. So, how do you get bitcoins?
19. How bitcoin works
21. Wallet generates a cryptographic key
22. Key has a public and private part
23. Their Private My Public
24. Mining
25. Mining requires hard computation
26. 1000 dice
27. Get one six
28. Get two sixes
29. Problem can get arbitrarily hard
30. One winner every 10 minutes
31. Winner of the mining problem gets 25 btc
32. This halves every 210,000 winners
34. There will only ever be 21 million bitcoins
35. They can be destroyed/lost
36. All transactions are public
37. Mining also verifies all transactions
38. This prevents double spending
39. Bitcoin is weakly anonymous
40. Bitcoin’s impact so far
41. Freedom
45. Bitcoin donations
46. At least 3500 bitcoins were donated
47. Bitcoin now at $915
49. All digital communications
50. Bitcoin may be traceable
51. Anonymise
52. The Silk Road
54. Built as a “hidden service”
56. FBI hacked the silk road
57. Worked out who owned it
58. Also “assassins”
59. Government seized the bitcoins
61. Indicated they would sell them
62. ~$27,000,000
63. Silk Road 2.0
65. Bitcoin trading
66. Buy and sell for $US
68. Not just mining export
69. Stock exchange for hackers
70. Huge transaction volume
71. “Digital commodity”
72. Altcoins
73. Bitcoin is open source
74. People are weird
79. Different problem
80. Harder to parallelise
81. Favours CPUs
82. Funnies
86. Let’s have some questions ! sam@funandplausible.com (we make things with love and data) !/samphippen