シン・ブロックチェーン / Shin (New, True and Deep) Blockchain

早稲田大学大学院経営管理研究科「フィンテック ─ 金融革新とインターネット」2023 夏クォーターの第5-6回で使用したスライドです。

Transcript

1. Financial technology on the street. Generated by Stable Diffusion XL Beta — 2023 5-6 (WBS) — 2023 5-6 — 2023-06-19 – p.1/58
2. https://speakerdeck.com/ks91 N N — 2023 5-6 — 2023-06-19 – p.2/58
3. ( ) 1 6 5 (1) • 2 6 5 (2) • 3 6 12 Web3 (1) • 4 6 12 Web3 (2) • 5 6 19 (1) • 6 6 19 (2) • 7 6 26 (1) 8 6 26 (2) 9 7 3 (1) 10 7 3 (2) 11 7 10 (1) 12 7 10 (2) 13 7 24 (1) 14 7 24 (2) W-IOI — 2023 5-6 — 2023-06-19 – p.3/58
4. ( 20 ) 1 2 3 4 (TCP/IP ) 5 6 7 8 9 10 World Wide Web 11 Web API 12 13 git GitHub 14 (6/19 ) / (2 ) OK / — 2023 5-6 — 2023-06-19 – p.4/58
5. ( ) Web3 (1) — Web3 (2) — on API ( ) — 2023 5-6 — 2023-06-19 – p.5/58
6. Web3 (1) — Web3 (2) — ← — 2023 5-6 — 2023-06-19 – p.6/58
7. — 2023 5-6 — 2023-06-19 – p.7/58
8. 2. (1) (end; ) (2) 2023 6 15 ( ) 23:59 JST ( ) Waseda Moodle — 2023 5-6 — 2023-06-19 – p.8/58
9. . . . . . . 37 31 (6/18( ) ) ( ) ( ) (7) / (5) / (4) / (3) / (3) / (2) / (1) / (1) / (1) / (1) / (1) / (1) / (1) → — 2023 5-6 — 2023-06-19 – p.9/58
10. H web3.py ⇒ : : : ( ) . . . — 2023 5-6 — 2023-06-19 – p.10/58
11. T 2 ( ) ⇒ ( ) — 2023 5-6 — 2023-06-19 – p.11/58
12. N ⇒ Gas ( ^^;) (Gas ) — 2023 5-6 — 2023-06-19 – p.12/58
13. N ⇒ DX — 2023 5-6 — 2023-06-19 – p.13/58
14. Y ( ( ) Over due ) ( ) ⇒ — 2023 5-6 — 2023-06-19 – p.14/58
15. M [ ] [ ] ⇒ — 2023 5-6 — 2023-06-19 – p.15/58
16. Web3 (1) — NFT DAO ← — 2023 5-6 — 2023-06-19 – p.16/58
17. $ brownie bake nft nft ( ) contracts SimpleCollectible.sol ERC-721 (ERC : Ethereum Request for Comments) NFT $ cd nft # nft $ brownie console # eth-brownie (Python ) >>> network.disconnect() # >>> network.connect(’goerli’) # Ethereum >>> accounts.add( ) # >>> collectible = SimpleCollectible.deploy({’from’: accounts[0]}) # NFT 1,834,415 Gas — 2023 5-6 — 2023-06-19 – p.17/58
18. NFT (Non-Fungible Token) 1 → ( ) → ( ) ( ) ( ) NFT NFT — 2023 5-6 — 2023-06-19 – p.18/58
19. ERC-721 NFT τʔΫϯ *% ൪߸ 63- ΞυϨε 63- /'5 Ұҙ Ұҙʁ Ұҙʁ Ұҙ ࣄ্࣮ Ұҙ ެ։伴ͷ μΠδΣετ ϝλσʔλ ίϯτϥΫτͱ͍͏ఆٛҬ ˞
    ͦͷίϯτϥΫτͱ͍͏ఆٛҬͷதͰ ࣮ઢ໼ҹͰࣔͨ͠ҰҙੑΛอূ͢Δʹա͗ͳ͍ ˞
    ഁઢ໼ҹͰࣔͨ͠Ұҙੑ͸ ࣮૷ɾӡ༻ͷ޻෉࣍ୈͰอূͰ͖Δ ɹ
    ྫ͑͹
    63- ʹͦΕ͕ࢦ͢Ϧιʔεͷ҉߸ֶతμΠδΣετΛؚΊΔ͜ͱ ྫ 
    *1'4 ͷར༻ ʹΑΓ ɹ
    ʮ63-
    ˠ
    σʔλʯͷҰҙੑΛอͯΔ ͦͷ৔߹Ͱ΋ʮσʔλ
    ˠ
    63-ʯͷҰҙੑ͸ແ͍ ର৅σʔλ ը૾౳ ॴ༗ऀ ϝλσʔλ 63- ର৅σʔλ 63- ൿີ伴 Ұҙ Ұҙʁ Ϣʔβ Ұҙʁ — 2023 5-6 — 2023-06-19 – p.19/58
20. NFT URL NFT >>> collectible.createCollectible( URL) # NFT URL NFT NFT >>> network.disconnect() # >>> network.connect(’mainnet’) # Ethereum >>> collectible = SimpleCollectible.at(’ ’) # >>> collectible.ownerOf(OpenSea NFT ID) # >>> collectible.tokenURI(OpenSea NFT ID) # — 2023 5-6 — 2023-06-19 – p.20/58
21. NFT σʔλ " ϒϩοΫνΣʔϯ #⒩ ʜ ʜ ϒϩοΫνΣʔϯ #⒪ ʜ ʜ εϚʔτίϯτϥΫτ $⒩ εϚʔτίϯτϥΫτ $⒪ ಛఆͷετϨʔδ ˞
    Ͳ͜ʹஔ͔ΕΑ͏ͱ΋ ɹ
    ౳͍͠σʔλ͸ಉ͡΋ͷ ϒϩοΫνΣʔϯ͕ಉ͡Ͱ΋ҟͳͬͯ ͍ͯ΋ εϚʔτίϯτϥΫτ͕ҟͳ ΔΠϯελϯεͳΒఆٛҬ͸ผͱͳΔ ଟ͘ͷ৔߹ ې͡ΒΕͳ͍ ېࢭͰ͖ͳ͍ ˞
    /'5 ͕σʔλΛࢦ͢ํࣜͱσʔλΛ֨ೲ͢Δํࣜ͸ σʔλͷՄ༻ੑ͸ҟͳΔͱͯ͠΋ҰҙੑʹؔΘΔੑ࣭͸มΘΒͳ͍ ಉҰ εϚʔτίϯτϥΫτ $⒫ εϚʔτίϯτϥΫτ $⒬ /'5⒩ /'5⒪ /'5⒫ /'5⒬ /'5⒮ /'5⒭ σʔλ "  ېͣΔΑ͏ͳ ઃܭ͸ίετߴ ېࢭͰ͖ͳ͍ — 2023 5-6 — 2023-06-19 – p.21/58
22. NFT NFT NFT >>> collectible.ownerOf( NFT ID) # >>> collectible.ownerOf( NFT ID) # NFT Ethereum Ethereum NFT NFT Ethereum Lazy Minting (?) ( ) (Gas ) — 2023 5-6 — 2023-06-19 – p.22/58
23. DAO (Decentralized Autonomous Organization) — 2023 5-6 — 2023-06-19 – p.23/58
24. DAO ಺෦ࢿຊˢ͋Δ ɹɹɹɹˣͳ͍ தԝʹࣗಈ ɹɹɹɹɹWT ɹɹɹɹɹɹதԝʹਓؒ ׬શͳ "* σʔϞϯ˞ ϑΥʔϥϜ˞ XFC αʔϏε ϩϘοτΛ࢖໾ %"0 %"QQ˞ ݹయత૊৫ ɹɹɹɹɹ
    
    पลʹਓؒ ɹɹɹɹ
    
    WT पลʹࣗಈ ˞
    %"QQ
    
    εϚʔτίϯτϥΫτʹΑΔΞϓϦέʔγϣϯ
    %FDFOUSBMJ[FE
    "QQ ˞
    ϑΥʔϥϜ
    
    ਓʑ͕ಛఆͷ࿩୊ʹ͍ͭͯٞ࿦ͨ͠Γ৘ใΛަ׵ͨ͠Γ͢Δ৔ ˞
    σʔϞϯ
    
    όοΫάϥ΢ϯυͰՔಇ͠
    ΠϕϯτʹࣗಈతʹରԠ͢ΔϓϩάϥϜ . . . Buterin DAO (2014) — 2023 5-6 — 2023-06-19 – p.24/58
25. DAO Bitcoin DAO → DAO Ethereum DAO → . . . DAO ( ) ( ) DAO ( : ) → . . . ( ) ↑ ( ) ← — 2023 5-6 — 2023-06-19 – p.25/58
26. Web3 (1) ( . . . ) · DAO Web 2.0 ( Web3 ) . . . — 2023 5-6 — 2023-06-19 – p.26/58
27. Web3 (2) — — 2023 5-6 — 2023-06-19 – p.27/58
28. K ( ) ⇒ ( ) ^^; “financial token” ( ) — G.M. (↑ ) ( Web3 ) — 2023 5-6 — 2023-06-19 – p.28/58
29. K WEB3 WEB3 WEB3 ( ) ⇒ . . . ( ) Web3 Web3 — 2023 5-6 — 2023-06-19 – p.29/58
30. I [ ] Axie Infinity NFT NFT Web3.0 [ ] NFT Web3.0 DAO ⇒ Web 3.0 Wood/Dixon Web 3.0 (Web3) Berners-Lee Web 3.0 NFT ( ) — 2023 5-6 — 2023-06-19 – p.30/58
31. — 2023 5-6 — 2023-06-19 – p.31/58
32. (1) ( ) 3 — 2023 5-6 — 2023-06-19 – p.32/58
33. (2) ↓ (1) (2) ( ) (3) ( ) bitcoin — 2023 5-6 — 2023-06-19 – p.33/58
34. (by Satoshi Nakamoto) Satoshi ( ) (block; , ) ← (chain; ) ← — 2023 5-6 — 2023-06-19 – p.34/58
35. Bitcoin . . . Bitcoin YouTuber ( ) ( ) ( ) ( ) Bitcoin ( ) YouTube, Zoom, etc. ??? YouTube Zoom ( ) — 2023 5-6 — 2023-06-19 – p.35/58
36. Bitcoin (1) Bitcoin = ( ) Bitcoin ⇒ P2P ⇒ ( ) — 2023 5-6 — 2023-06-19 – p.36/58
37. Bitcoin (2) (double spending) ( ) ⇒ ⇒ ( ) → ( ) ( ) ( ) ⇒ → → ⇒ → — 2023 5-6 — 2023-06-19 – p.37/58
38. — — 2023 5-6 — 2023-06-19 – p.38/58
39. / (1) Bitcoin 2,100 cm3 (cc) 1 1cm3 10 6.25cm3 ⇒ ⇒ ( ) — 2023 5-6 — 2023-06-19 – p.39/58
40. / (2) ( ) ( ) ( ) ( ) ( ) → Bitcoin ( ) — 2023 5-6 — 2023-06-19 – p.40/58
41. ∼ UTXO (= ) → — 2023 5-6 — 2023-06-19 – p.41/58
42. ∼ ท൪߸
    
    O ท൪߸
    
    O  ท൪߸
    
    O  લทͷμΠδΣετ λʔήοτҎԼͰͳ͍ͱ͍͚ͳ͍ ͸Έͩ͠ίʔφʔ μΠδΣετ͕λʔήοτҎԼʹͳΔΑ͏ʹೖΕΔద౰ͳ಺༰ ( ) → — 2023 5-6 — 2023-06-19 – p.42/58
43. ∼ ϖʔδ൪߸
    
    O ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ϖʔδ൪߸
    
    O  ͬͪ͜ͷྺ࢙͕༗ޮ ( (= ) ) — 2023 5-6 — 2023-06-19 – p.43/58
44. ϒϩοΫ൪߸
    
    O ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ϒϩοΫ൪߸
    
    O  ͍ͪ͹Μه࿥ɾॻ͖׵͑ͷίετ͕ߴ͍ྺ࢙ ࠷΋վ͟Μ͠ʹ͍͘ྺ࢙ ͕༗ޮ ͻͱͭखલͷϒϩοΫͷ ʮμΠδΣετʯ σδλϧॺ໊͞Εͨ ʮτϥϯβΫγϣϯ औҾ ʯ ϒϩοΫΛ࡞ΔͨΊʹ͸ɺͦͷʮμΠδΣετʯ͕͋Δ਺ҎԼͱ͍͏৚݅Λຬͨͨ͠Γ 1SPPG
    PG
    8PSL Ծ૝௨՟ͷ࣋ͪ෼ʹԠͨ͡ݖརΛ࢖ͬͨ౤ථͰউͬͨΓ 1SPPG
    PG
    4UBLF ͢Δඞཁ͕͋Δ ίετ͕͔͔Δ ϒϩοΫΛ࡞Δਓ͸ͦͷதʹࣗ෼ʹѼͯͨ Ծ૝௨՟ͰͷใुΛॻ͖ࠐΉ͜ͱ͕Ͱ͖ɺ ͦͷϒϩοΫ͕༗ޮͳྺ࢙ͷதʹ͋Δ৔߹ʹ ݶΓใु΋༗ޮͱͳΔ τϥϯβΫγϣϯͷଘࡏΛ֬ೝ͢Δ ͨΊͷޮ཰తͳํ๏͕ఏڙ͞ΕΔ ਖ਼౰ੑ ଘࡏੑ །Ұੑ Proof of Work ( ) . . . → — 2023 5-6 — 2023-06-19 – p.44/58
45. 0 and/or Bitcoin “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” 2009 1 3 2 https://www.blockchain.com/explorer 0 BTC Block “Hex to ASCII Text Converter” — 2023 5-6 — 2023-06-19 – p.45/58
46. : ( ( ) ) ( ) — 2023 5-6 — 2023-06-19 – p.46/58
47. (Hyperledger ) ( ) ( ) ( ) ( ) IoT / / ( , ) — 2023 5-6 — 2023-06-19 – p.47/58
48. : Bitcoin . . . : Proof of Existence, Everledger, . . . ( ) ( ) / × = NFT (Non Fungible Token) — 2023 5-6 — 2023-06-19 – p.48/58
49. ( ) จ
    
    ॻ  จ
    
    ॻ  จ
    
    ॻ  จ ॻ  จ
    
    ॻ O μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ ح਺ͷ৔߹͸ ෳ੡͢Δ ɾจॻ 
    ΛಘͨΫϥΠΞϯτ͸ɺಉ࣌ʹূ໌ཁૉͱͯ͠ɺϒϧʔͰࣔ͞ΕΔμΠδΣετͱ֤ʑ͕ࠨӈͷͲͪΒʹҐஔ͢Δ͔Λड͚औΔɻ ɾΫϥΠΞϯτ͸จॻ  ͷμΠδΣετ͔Β࢝Ίͯɺ࿈݁͢΂͖Ұ࿈ͷμΠδΣετΛ஌Δ͜ͱʹͳΔͷͰɺϚʔΫϧϧʔτʹࢸΔ·Ͱͷ ɹܭࢉΛ࠶ݱͰ͖ɺಘΒΕͨϚʔΫϧϧʔτ͕ϒϩοΫνΣʔϯʹه࿥͞Ε͍ͯΔ஋ͱҰக͢Δ͜ͱΛ֬ೝͰ͖Δɻ ɾͦͷܭࢉ͸ݪཧͷཧղͱඞཁͳ৘ใ͕͋Ε͹୭Ͱ΋࠶ݱͰ͖Δ  จॻ  ͷଘࡏͱͦͷ಺༰͸ূ໌͞ΕΔɻ ˞
    μΠδΣετ͸ݩͷσʔλ͕ ɹ
    
    ϏοτͰ΋ҟͳΔͱશ͘ҟͳΔ ɹ
    ஋ͱͳΓɺ·ͨɺμΠδΣετ ɹ
    ͔ΒݩͷσʔλΛਪଌ͢Δ͜ͱ͸ ɹ
    Ͱ͖ͳ͍ɻ ˞
    ਺ઍɾ਺ສͷจॻΛϚʔΫϧ໦ʹͯ͠΋ ɹ
    ͦͷ໦ͷߴ͞͸ߴʑ
    ʙ ఔ౓ ه࿥͢Δ ಡΈग़ͤΔ ূ໌Λ ඞཁͱ͢Δऀʹ ։ࣔ͞ΕΔ৘ใ ެ։͞ΕΔ৘ใ ϚʔΫϧϧʔτ Ϛ ồ Ϋ ϧ ໦
    γ ε ς Ϝ ͕ อ ؅ ͠ ֤ Ϣ ồ β ʹ ෦ ෼ త ʹ ఻ ͑ Δ ʜʜ ʜʜ ʜʜ ʜʜ ʜʜ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ μΠδΣετ ϒϩοΫνΣʔϯ ʜ ʜ — 2023 5-6 — 2023-06-19 – p.49/58
50. : ⇒ LINE → → ( ) ( ) ⇒ ( ) → → → . . . — 2023 5-6 — 2023-06-19 – p.50/58
51. ( ( )) ( ) / / — 2023 5-6 — 2023-06-19 – p.51/58
52. — 1. ( ) 2. ( ) 3. ( ) — 2023 5-6 — 2023-06-19 – p.52/58
53. — 2023 5-6 — 2023-06-19 – p.53/58
54. ( ) ( ) ( vs. ) ( ) ( ) ( ) ⇒ ( : BBc-1, BBc-2) : : — 2023 5-6 — 2023-06-19 – p.54/58
55. SF — 2023 5-6 — 2023-06-19 – p.55/58
56. — 2023 5-6 — 2023-06-19 – p.56/58
57. 3. SF Web3 2023 6 22 ( ) 23:59 JST ( ) Waseda Moodle — 2023 5-6 — 2023-06-19 – p.57/58
58. — 2023 5-6 — 2023-06-19 – p.58/58