Web3 のリアリティ / The Reality of Web3

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3-4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 3-4 Web3 (WBS) — 2023 3-4 Web3 — 2023-06-12 – p.1/51
2. https://speakerdeck.com/ks91 Discord — 2023 3-4 Web3 — 2023-06-12 – p.2/51
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 3-4 Web3 — 2023-06-12 – p.3/51
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 3-4 Web3 — 2023-06-12 – p.4/51
5. ( ) (FinTech) — 2023 3-4 Web3 — 2023-06-12 – p.5/51
6. Web3 (1) — Web3 (2) — on API ( ) — 2023 3-4 Web3 — 2023-06-12 – p.6/51
7. T TCP IP 1 ⇒ TCP : IP IP : — 2023 3-4 Web3 — 2023-06-12 – p.7/51
8. TCP/IP — 2023 3-4 Web3 — 2023-06-12 – p.8/51
9. — 2023 3-4 Web3 — 2023-06-12 – p.9/51
10. 1. (1) (2) (plain text) ( ×) 2023 6 8 ( ) 23:59 JST ( ) Waseda Moodle — 2023 3-4 Web3 — 2023-06-12 – p.10/51
11. . . . . . . 47 31 (6/9( ) ) ( ) 20 (1990 ) ( ) — 2023 3-4 Web3 — 2023-06-12 – p.11/51
12. (tetrad) = ( ) 4 : ? : ? : ? : ? — — 2023 3-4 Web3 — 2023-06-12 – p.12/51
13. ڧԽ ਰୀ ճ෮ ൓స ॏཁ͕ͩݟམͱ͞Ε͕ͪͳޮՌ ਰୀʹΑΓ෮׆ ൓సʹΑΓਰୀ ϦΞϧλΠϜऔҾͱ৘ใॲཧ ఻౷తͳۚ༥஥հ໾ʢྫ͑͹ɺ෺ཧతͳۜߦʣ ϐΞɾτΡɾϐΞͷۚ༥औҾʢྫ͑͹ɺσδλϧ௨՟ʣ ৴པੑͱϓϥΠόγʔͷ໰୊ʢྫ͑͹ɺϋοΩϯά΍σʔλ࿙Ӯʣ ஍ཧతো֐ͷఫഇ ৘ใอଘͷলεϖʔεԽʢ෺ཧతʣ طଘϝσΟΞʢग़൛౳ʣٴͼؔ࿈࢈ۀʢ੡ࢴɾҹ࡮౳ʣ ৘ใऔಘऀͷ໨ར͖ɾऔࣺબ୒ೳྗͷ޼੿ ৘ใྲྀ௨ͷߏ଄స׵ʢݸਓ͕ൃ৴ऀʹͳΕΔʣ ҙݟͷ෼அ ෆਖ਼֬ͳ৘ใͷྲྀ෍ ెఋ੍౓ 8FC ϝλόʔε ࣗ෼Ͱ஌ࣝ΍৘ใΛ֮͑Α͏ͱ͢Δ஌ࣝཉ هԱྗ ਓؒͷةػ࡯஌ೳྗ ௒ߴྸԽࣾձ ؂ࢹࣾձ ίϛϡχέʔγϣϯʢ଎౓ʗྔʣ ༏ӽత஍Ґʢ৘ใͷඇରশੑɺۭؒత੍໿ʹΑΔ༏Ґੑʣ ݸਓͷݖར બ୒ࢶ ମݧՁ஋ ๩͠͞ ֦֨ࠩେʢσδλϧσόΠυʣ ཉ๬ͷ૿Ճ ൜ࡑͷଟ༷Խ ৘ใͷอଘɾ׆༻ʹ͍ͭͯɺಛఆͷσόΠεʹඥ෇͔ͳ͍ εϓϦϯλʔωοτͷొ৔ ࠃՈʹΑΔ౷੍͕༰қʹͳΔ ϩʔΧϧϝσΟΞͷ෮ݖ ৘ใͷຽओԽͱ෼ࢄԽʹΑΔඇରশੑͷݮগʢΞΫηεͱػձͷฏ౳ੑʣ ଟ༷ੑͱ׮༰ੑͷଅਐʢݸਓతͳදݱͱ૝૾ྗʣ σδλϧർ࿑ Πϊϕʔγϣϯ ֶश ஶ࡞ݖͱॴ༗ݖ खࢴ΍೔هͳͲͷݸਓతͳه࿥ Ϋϥ΢υίϯϐϡʔςΟϯά ϓϥοτϑΥʔϜ ϒϩοΫνΣʔϯ ར༻ऀͷಗ໊ੑ ୠ͠ݶք͋Γ ݸਓͷ֊ڃ΍ϥϕϧʹनΘΕͳ͍ࣗ༝ͳҙࢥදࣔ σδλϧλτΡʔ ඦՊࣄయ ୳͍ͯ͠Δ৘ใʢ౴͑ʣ΁ͷΞΫηε͕଎͘ͳΔʢλΠύͷྑ͞ʣ ݸਓ͕ओମͱͳΔࣄۀ׆ಈ "* ૊৫͔Βݸਓ΁ͷύϫʔͷγϑτ ୭Ͱ΋͍ͭͰ΋ΞΫηεͰ͖Δ ୭Ͱ΋৘ใΛແྉͰෳ੡Ͱ͖Δ ௕࿝ͷ஌ܙ σδλϧσόΠε Ϛονϯά ൺֱ ళฮϏδωε ೥լঢ় γεςϜμ΢ϯ ۭؒͷ֦ுɾۭؒͷΠϯλʔωοτԽʢ"QQMF
    7JTJPO
    1SPʣ ଞਓͱͷڑ཭ ຽओओٛ ݱ࣮ੈքͱͷٯసʢωοτੈք͕ϝΠϯͰݱ࣮ࣾձ͕αϒʣ σδλϧґଘ — 2023 3-4 Web3 — 2023-06-12 – p.13/51
14. : End-to-End, GAFA — 2023 3-4 Web3 — 2023-06-12 – p.14/51
15. F ⇒ Amazon Go — 2023 3-4 Web3 — 2023-06-12 – p.15/51
16. Y ⇒ . . . — 2023 3-4 Web3 — 2023-06-12 – p.16/51
17. T ⇒ “White Wash” — 2023 3-4 Web3 — 2023-06-12 – p.17/51
18. E NFT NFT ⇒ Web3 — 2023 3-4 Web3 — 2023-06-12 – p.18/51
19. N ⇒ — 2023 3-4 Web3 — 2023-06-12 – p.19/51
20. Y ⇒ — 2023 3-4 Web3 — 2023-06-12 – p.20/51
21. Web3 (1) — ← Web3 NFT DAO — 2023 3-4 Web3 — 2023-06-12 – p.21/51
22. NFT ( web3 ) NFT — 2023 3-4 Web3 — 2023-06-12 – p.22/51
23. — 2023 3-4 Web3 — 2023-06-12 – p.23/51
24. NFT Minecraft VRChat (VR) NFT NFT Minecraft — 2023 3-4 Web3 — 2023-06-12 – p.24/51
25. .JOFDSBGU
    ʙ ҉߸ࢿ࢈ɾ/'5
    ⁇ 3PCMPY
    ʙ ҉߸ࢿ࢈ɾ/'5
    ʓ 73$IBU
    ʙ ҉߸ࢿ࢈ɾ/'5
    ʷ 5IF
    4BOECPY
    ʙ ҉߸ࢿ࢈ɾ/'5
    ʓ ̍ ೔ ͷ Ϣ ồ β ਺ 0 200000 400000 600000 ˞
    IUUQTNNPTUBUTDPN
    ͕ఏڙ͢ΔσʔλΛݩʹ࡞੒ ZEPETO (2018∼) ( NFT ) The Sandbox 100 Roblox/Minecraft 1 10 Axie Infinity (2018∼) [ ] ( NFT ) The Sandbox 2 Decentraland (2020∼) ( NFT ) The Sandbox 1 10 — 2023 3-4 Web3 — 2023-06-12 – p.25/51
26. VRChat vs. NeosVR ( ) 73$IBU
    ʙ ҉߸ࢿ࢈ɾ/'5
    
    ʷ NeosVR (2018ʙ) ҉߸ࢿ࢈ɾ/'5
    
    ʓ ௚ۙ աڈ࣌ؒͷϐʔΫ աڈ࠷େͷϐʔΫ ಉ ࣌ ઀ ଓ Ϣ ồ β ਺ 0 10000 20000 30000 40000 ˞
    IUUQTTUFBNDIBSUTDPN
    ͕ఏڙ͢Δ ɹ
    σʔλΛݩʹ࡞੒ ˞
    ήʔϜϓϥοτ ϑΥʔϜ
    4UFBN
    ͷ
    "1*
    ͔Β ɹ
    औಘ͞ΕͨσʔλʹଇΔ NeosVR NFT ( ) VRChat — 2023 3-4 Web3 — 2023-06-12 – p.26/51
27. Web3 Web3 — 2023 3-4 Web3 — 2023-06-12 – p.27/51
28. Web 1-2-3 ͍ΘΏΔ 8FC
     8FC
     ໰୊ͷۚ༥Խ Ϣʔβࣗ਎͕ʮ؆୯ʹʯσʔλͷੜ࢈ऀʹ ΋͏ͻͱͭ ͷࢭ༲ ࢭ༲ 4FNBOUJD
    8FC  l8FC
    z
    ॳग़
      8FC
     ˠ
    8FC           8FC
     ૊৫ʹ ؅ཧͤͣ͞ɺ σʔλΛϢʔβͷ खʹऔΓ໭ͦ͏ ͢΂ͯͷ໰୊͸ ͢΂ͯΛ ۚ༥τʔΫϯԽͯ͠ ղܾ͠Α͏ #FSOFST-FF ͷ #FSOFST-FF ͷ 0` 3FJMMZ ͷ 8PPE ͷ #JUDPJO ε ϊ ồ σ ϯ ࣄ ݅ Ϧ ồ Ϛ ϯ ɾ γ ἀ ỽ Ϋ Π ϯ λ ồ ω ỽ τ ঎ ༻ Խ &UIFSFVN 4PMJE ϓϩδΣΫτ΁ Ϣʔβࣗ਎ͱ ެӹͷͨΊʹ σʔλ͸ࣗ༝ʹ ׆༻Ͱ͖͍ͯΔ͔ʁ — 2023 3-4 Web3 — 2023-06-12 – p.28/51
29. Web 3.0 Web3 Web 1.0 (Berners-Lee) : Read × Write → Web 2.0 (O’Reilly) : Read × Write ← (Web 1.0 ) Web 3.0 (Berners-Lee) → Solid (Social linked data) Web 3.0 → Web3 (Wood) Ethereum ← web3.js, web3.py Web3 (Dixon) : Read × Write × Own (Bloomberg) — 2023 3-4 Web3 — 2023-06-12 – p.29/51
30. python 3.10.7 solc 0.8.19 ( ) (Solidity ( ) ) node v20.2.0 ganache v7.8.0 (Ethereum RPC + ) eth-brownie 1.19.3 (Python Ethereum ) web3 5.31.3 (Python Ethereum ) py-solc-x 1.1.1 (Solidity Python + ) macOS Monterey 12.6.6 — 2023 3-4 Web3 — 2023-06-12 – p.30/51
31. Python3 eth-brownie . . . $ python3 -m venv demoenv $ source demoenv/bin/activate $ pip install -U pip $ pip install wheel $ pip install eth-brownie web3.py — 2023 3-4 Web3 — 2023-06-12 – p.31/51
32. Ethereum Python NFT — 2023 3-4 Web3 — 2023-06-12 – p.32/51
33. : Bitcoin . . . : ( : ) ( ) : : : ⇒ — 2023 3-4 Web3 — 2023-06-12 – p.33/51
34. Ethereum        ߹ҙ͞Εͨཤྺ ϩʔΧϧʹෳ੡Λҡ࣋ ϒϩοΫ εϩοτ  ඵִؒ  εϩοτͰ  ΤϙοΫ ҉߸ֶతμΠδΣετ ϒϩοΫνΣʔϯͷҡ࣋ࢀՃऀ͕ϩʔΧϧʹ؅ཧ͢Δσʔλۭؒ ࣌ؒ
    ΑΓ৽͍͠ه࿥ ΦϒδΣΫτ τʔΫϯγεςϜ౳ͷεϚʔτίϯτϥΫτ ֤Ϣʔβͷ ࢒ߴ౳ͷঢ়ଶ ঢ়ଶ` ঢ়ଶ`` τϥϯβΫγϣϯ
     ΦϒδΣΫτͷੜ੒ ·ͨ͸ঢ়ଶભҠͷࢦࣔ ແޮͳཤྺ ω ỽ τ ϫ ồ Ϋ Λ ௨ ͠ ͯ ૹ ड ৴ ͞ Ε Δ ϩ ồ Χ ϧ ʹ ࣋ ͭ ܨ͙ͨΊʹ͸
    &5) Ͱͷσϙδοτͱ σϙδοτ૯ֹͷ ♤ ૬౰ͷϢʔβʹΑΔ ΤϙοΫ΁ͷূݴ͕ඞཁ શΦϒδΣΫτͷભҠޙͷঢ়ଶ ͕ϋογϡ໦˞ʹू໿͞Ε ͦͷ ϧʔτ஋͕ϒϩοΫʹॻ͔ΕΔ ঢ়ଶભҠ ˞
    ϋογϡ໦
    
    σʔλ܈ͷ҉߸ֶతμΠδΣετ ϋογϡ ɹ
    Λ໦ߏ଄ʹදݱͨ͠΋ͷͰ
    ෆ੔߹ͷݕग़ʹ༻͍ΒΕΔ . . . ETH ETH — 2023 3-4 Web3 — 2023-06-12 – p.34/51
35. Ethereum Ethereum $ brownie console # eth-brownie (Python ) # ↓ Python >>> network.disconnect() # ( ) >>> network.connect(’mainnet’) # Ethereum >>> web3.eth.block_number # >>> web3.eth.get_block( ) # >>> web3.eth.get_block( ).get(’timestamp’) # >>> import datetime >>> dt = datetime.datetime.fromtimestamp( ) >>> print(dt) # — 2023 3-4 Web3 — 2023-06-12 – p.35/51
36. &UIFSFVN
    ωοτϫʔΫ  &7. &0" &5) ࢒ߴ &5) (BT εϚʔτ ίϯτϥΫτ ϝοηʔδʹΑΔ ݺͼग़͠ τϥϯβ Ϋγϣϯ ॺ໊ͯ͠ ౤ೖ ϒϩοΫʹ ૊ΈࠐΈˠ όϦσʔλ Ϣʔβ ॲ ཧ ˞
    (BT ͸ܭࢉࢿݯͷྔΛද͢ ˞
    (BT ࢖༻ྉΛ &5) Ͱࢧ෷͏Ϣʔβ͕τϥϯβΫγϣϯΛ౤ೖ͠ͳ͍ݶΓ ɹ
    εϚʔτίϯτϥΫτ͸ಈ࡞͠ͳ͍ . . . Ethereum (EVM) ETH ↑ DAO EOA : Externally Owned Account — 2023 3-4 Web3 — 2023-06-12 – p.36/51
37. $ 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 3-4 Web3 — 2023-06-12 – p.37/51
38. NFT (Non-Fungible Token) 1 → ( ) → ( ) ( ) ( ) NFT NFT — 2023 3-4 Web3 — 2023-06-12 – p.38/51
39. 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 3-4 Web3 — 2023-06-12 – p.39/51
40. 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 3-4 Web3 — 2023-06-12 – p.40/51
41. 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 3-4 Web3 — 2023-06-12 – p.41/51
42. NFT NFT NFT >>> collectible.ownerOf( NFT ID) # >>> collectible.ownerOf( NFT ID) # NFT Ethereum Ethereum NFT NFT Ethereum Lazy Minting (?) ( ) (Gas ) — 2023 3-4 Web3 — 2023-06-12 – p.42/51
43. DAO (Decentralized Autonomous Organization) — 2023 3-4 Web3 — 2023-06-12 – p.43/51
44. 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 3-4 Web3 — 2023-06-12 – p.44/51
45. DAO Bitcoin DAO → DAO Ethereum DAO → . . . DAO ( ) ( ) DAO → . . . ( ) ↑ ( ) ← — 2023 3-4 Web3 — 2023-06-12 – p.45/51
46. Web3 (1) ( . . . ) · DAO Web 2.0 ( Web3 ) . . . — 2023 3-4 Web3 — 2023-06-12 – p.46/51
47. Web3 (2) — — 2023 3-4 Web3 — 2023-06-12 – p.47/51
48. : API Pay API (Application Programming Interface) — 2023 3-4 Web3 — 2023-06-12 – p.48/51
49. — 2023 3-4 Web3 — 2023-06-12 – p.49/51
50. 2. (1) (end; ) (2) 2023 6 15 ( ) 23:59 JST ( ) Waseda Moodle — 2023 3-4 Web3 — 2023-06-12 – p.50/51
51. — 2023 3-4 Web3 — 2023-06-12 – p.51/51