Web3 技術のリアリティ(デモンストレーション) / The Reality of Web3 Technology (Demonstration)

2023年6月16日(金)、幕張メッセで開催された Interop Tokyo 2023 カンファレンスでの講演に使用したスライドです。

Transcript

1. Web3 ( ) Web3 — 2023-06-16 – p.1/22
2. Web3 Web 3.0 World Wide Web Web 2.0 “web3.py” Python Ethereum NFT( ) Web3 Web3 — 2023-06-16 – p.2/22
3. Web3 Web3 Web3 — 2023-06-16 – p.3/22
4. 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 Web3 — 2023-06-16 – p.4/22
5. 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) Web3 — 2023-06-16 – p.5/22
6. 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 Web3 — 2023-06-16 – p.6/22
7. Python3 eth-brownie . . . $ python3 -m venv demoenv $ source demoenv/bin/activate $ pip install -U pip $ pip install wheel $ pip install eth-brownie web3.py Web3 — 2023-06-16 – p.7/22
8. Ethereum Python NFT Web3 — 2023-06-16 – p.8/22
9. : Bitcoin . . . : ( : ) ( ) : : : ⇒ Web3 — 2023-06-16 – p.9/22
10. 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 Web3 — 2023-06-16 – p.10/22
11. 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) # Web3 — 2023-06-16 – p.11/22
12. &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 Web3 — 2023-06-16 – p.12/22
13. $ brownie bake nft nft ( ) contracts SimpleCollectible.sol ERC-721 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 Web3 — 2023-06-16 – p.13/22
14. NFT (Non-Fungible Token) 1 → ( ) → ( ) ( ) ( ) NFT NFT Web3 — 2023-06-16 – p.14/22
15. 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 Web3 — 2023-06-16 – p.15/22
16. 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) # Web3 — 2023-06-16 – p.16/22
17. 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 Web3 — 2023-06-16 – p.17/22
18. NFT NFT NFT >>> collectible.ownerOf( NFT ID) # >>> collectible.ownerOf( NFT ID) # NFT Ethereum Ethereum NFT NFT Ethereum Lazy Minting (?) ( ) (Gas ) Web3 — 2023-06-16 – p.18/22
19. DAO (Decentralized Autonomous Organization) Web3 — 2023-06-16 – p.19/22
20. 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) Web3 — 2023-06-16 – p.20/22
21. DAO Bitcoin DAO → DAO Ethereum DAO → . . . DAO ( ) ( ) DAO → . . . ( ) ↑ ( ) ← Web3 — 2023-06-16 – p.21/22
22. ( . . . ) · DAO Web 2.0 . . . Web3 — 2023-06-16 – p.22/22