Web3 の実像 / The Real World of Web3

2023年7月26日(水)、ブロックチェーンハブ主催のブロックチェーンアカデミーにて使用したスライドです。

Transcript

1. Web3 Web Chief Science Officer / ks91@blockchainhub.co.jp Web3 — — 2023-07-26 – p.1/25
2. https://speakerdeck.com/ks91 Web3 — — 2023-07-26 – p.2/25
3. ( ) SFC ( ) CSO (Chief Science Officer) 1993 ( ) 2006 ( ) SFC 22 P2P (Peer-to-Peer) 2011 ( ) 2018 2019 VR 2021.9 & VR 2022.3 2023 AI VR 2023.2-3 “POWER TO THE PEOPLE” VR&RPG 2023.5 “Don’t Be So Serious” VOXEL 2023.7 DAZE → ( ) Web3 — — 2023-07-26 – p.3/25
4. Web3 ( Ethereum Web ) Web 3.0 Web 2.0 Web Web 2.0 Web 3.0 Web3 NFT ( ) DAO ( ) Web Web3 — — 2023-07-26 – p.4/25
5. Web3 Web3 Web3 — — 2023-07-26 – p.5/25
6. 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 — — 2023-07-26 – p.6/25
7. 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 — — 2023-07-26 – p.7/25
8. python 3.10.6 solc 0.8.21 ( ) (Solidity ( ) ) node v18.15.0 ganache v7.7.7 (Ethereum RPC + ) eth-brownie 1.19.3 (Python Ethereum ) web3 5.31.3 (Python Ethereum ) py-solc-x 1.1.1 (Solidity Python + ) Linux (Ubuntu 22.04) Web3 — — 2023-07-26 – p.8/25
9. Python3 eth-brownie . . . $ python3 -m venv demoenv $ source demoenv/bin/activate $ pip install -U pip $ pip install eth-brownie web3.py Web3 — — 2023-07-26 – p.9/25
10. Ethereum Python NFT Web3 — — 2023-07-26 – p.10/25
11. : Bitcoin . . . : ( : ) ( ) : : : ⇒ Web3 — — 2023-07-26 – p.11/25
12. 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 — — 2023-07-26 – p.12/25
13. 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 — — 2023-07-26 – p.13/25
14. &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 — — 2023-07-26 – p.14/25
15. $ 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 — — 2023-07-26 – p.15/25
16. NFT (Non-Fungible Token) 1 → ( ) → ( ) ( ) ( ) NFT NFT Web3 — — 2023-07-26 – p.16/25
17. 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 — — 2023-07-26 – p.17/25
18. 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 — — 2023-07-26 – p.18/25
19. 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 — — 2023-07-26 – p.19/25
20. NFT NFT NFT >>> collectible.ownerOf( NFT ID) # >>> collectible.ownerOf( NFT ID) # NFT Ethereum Ethereum NFT NFT Ethereum Lazy Minting (?) ( ) (Gas ) Web3 — — 2023-07-26 – p.20/25
21. DAO (Decentralized Autonomous Organization) Web3 — — 2023-07-26 – p.21/25
22. 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 — — 2023-07-26 – p.22/25
23. DAO Bitcoin DAO → DAO Ethereum DAO → . . . DAO ( ) ( ) DAO → . . . ( ) ↑ ( ) ← Web3 — — 2023-07-26 – p.23/25
24. ( . . . ) · DAO Web 2.0 . . . Web3 — — 2023-07-26 – p.24/25
25. Web3 — — 2023-07-26 – p.25/25