Tweet
Tweet

Slide 1

Slide 1 text

Light and Shadow — Generated by Stable Diffusion 3.5 — 2025 3-4 Web3 (WBS) — 2025 3-4 Web3 — 2025-06-16 – p.1/48

Slide 2

Slide 2 text

https://speakerdeck.com/ks91/collections/fintech-2025-summer — 2025 3-4 Web3 — 2025-06-16 – p.2/48

Slide 3

Slide 3 text

( ) 1 6 9 (1) • 2 6 9 (2) • 3 6 16 Web3 (1) • 4 6 16 Web3 (2) • 5 6 23 (1) 6 6 23 (2) 7 6 30 (1) 8 6 30 (2) 9 7 7 (1) 10 7 7 (2) 11 7 14 (1) 12 7 14 (2) 13 7 21 (1) 14 7 21 (2) W-IOI ( ) — 2025 3-4 Web3 — 2025-06-16 – p.3/48

Slide 4

Slide 4 text

( 20 ) 1 ↑ 2 ↓ 2025 3 4 (TCP/IP ) 5 6 7 8 ↑ 9 ↓ 2024 ( ) 10 World Wide Web 11 Web API 12 * 13 git GitHub 14 (6/23 ) / (2 ) OK / — 2025 3-4 Web3 — 2025-06-16 – p.4/48

Slide 5

Slide 5 text

( ) (FinTech) — 2025 3-4 Web3 — 2025-06-16 – p.5/48

Slide 6

Slide 6 text

Web3 (1) — Web3 (2) — on API ( ) — 2025 3-4 Web3 — 2025-06-16 – p.6/48

Slide 7

Slide 7 text

— 2025 3-4 Web3 — 2025-06-16 – p.7/48

Slide 8

Slide 8 text

1. (1) (2) (plain text) ( ×) 2025 6 12 ( ) 23:59 JST ( ) Waseda Moodle — 2025 3-4 Web3 — 2025-06-16 – p.8/48

Slide 9

Slide 9 text

. . . . . . 17 ( ) 16 (6/14( ) ) ( ) 20 (1990 ) ( ) — 2025 3-4 Web3 — 2025-06-16 – p.9/48

Slide 10

Slide 10 text

(tetrad) = ( ) 4 : ? : ? : ? : ? — — 2025 3-4 Web3 — 2025-06-16 – p.10/48

Slide 11

Slide 11 text

ڧԽ ਰୀ ճ෮ ൓స ॏཁ͕ͩݟམͱ͞Ε͕ͪͳޮՌ ਰୀʹΑΓ෮׆ ൓సʹΑΓਰୀ ੈքதͷ৘ใ΍ਓͱɺ͙͢ʹɾ؆୯ʹͭͳ͕Δ ͭͳ͕Γ਺ ՋͭͿ͠ ޾෱ײ ಗ໊ੑ ిࢠతͳܦࡁ׆ಈ ؀ڥͷฏ४Խ اۀͷෆਖ਼΍ϋϥεϝϯτͳͲͷൃݟ ݸਓ޲͚޿ࠂɾλʔήςΟϯά޿ࠂ ϦϞʔτϫʔΫ ϓϥοτϑΥʔϚʔ ݸʢݸਓɺݸੑɺݸମɺݸผͷҙຯʣ ɺࣗ༝ ৘ใͷಁ໌ੑɾ৘ใͷඇରশੑͷղফɺ৴པͷՄࢹԽɾఆྔԽ ਫฏతͳؔ܎ʢώΤϥϧΩʔͰ͸ͳ͍ʣ ৘ใࣾձ ৘ใڞ༗ͷଈ࣌ੑɺ૒ํ޲ίϛϡχέʔγϣϯɺάϩʔόϧͳ઀ଓੑɺ ஌ࣝΞΫηεͷຽओԽ ࢴͷࣙॻɺखࢴɺ৽ฉɺ$% ΍ %7%ɺి࿩ாɺ஍ਤா தԝूݖɾू໿ ஌ࣝ΍৘ใͷಠ઎ ઐ໳ੑ ϦΞϧײ ෺ཧతڑ཭ ΦʔϧυϘʔΠζΫϥϒ Էചۀऀɾ஥հऀ ϋϥεϝϯτ΍ෆਖ਼ɾෆ঵ࣄ͕ԣߦ͢Δاۀ ਎ମੑΛ൐͏ର໘ίϛϡχέʔγϣϯ ࢮͷ֓೦ʢσδλϧΞʔΧΠϒͰଘࡏ͠ଓ͚ΒΕΔʣ Կ΋ߟ͑ͳ͍࣌ؒɾՋ ॻ੶ɺ༣ศɺਤॻؗɺ'"9ɺϚεϝσΟΞͱͯ͠ͷςϨϏɺ ϦΞϧళฮͰͷങ͍෺ɺϦΞϧͰͷଧͪ߹Θͤɺࢴഔମͷ໊ࢗަ׵ ϑΣΠΫχϡʔεɺதইɺ4/4 ґଘɺݸਓ৘ใͷ࿙͍͑ σδλϧλτΡʔ ΤίʔνΣϯόʔ αΠόʔ߈ܸ ຊ཭ΕɺจԽతج൫ͷਰୀ શମओٛ΍ϙϐϡϦζϜͷ୆಄ ද໘తͳͭͳ͕Γͷ൙ཞʹΑͬͯɺ ͔͑ͬͯਂ͍ਓؒؔ܎͕ங͖ʹ͘͘ͳΔ ૬ޓ؂ࢹࣾձ σδλϧστοΫε ਓؒΒ͠͞ ৘ใ֨ࠩ ਎ମੑͷرബԽ ग़ࣾճؼ ͏Θ͞ʹΑΔࢢ৔ͷࠞཚ ϝλόʔε΍ి೴ੈք ਓຽઔಈ ৘ใաଟɺ෼அͱϑΟϧλʔόϒϧɺ஫ҙྗͷ௿Լɺݽཱײɺωοτதಟ ਓͱਓͱͷͭͳ͕Γ ௚઀औҾ ࢢ৔ͷۭؾ ίϛϡχςΟ ࣗ༝࣌ؒ ௕͍௨ۈ͔࣌ؒΒͷղ์ ࣾձنൣ͔Βҳ୤͢Δදݱͷࣗ༝ ಡ·Ε͍ͯͳ͔ͬͨॻ੶΍จݙʢϩϯάςʔϧͷ๏ଇʣ ৴པɾڞײʹجͮ͘ඇ՟ฎతͭͳ͕Γ ޷͖ͳ͜ͱΛ࢓ࣄʹ͢Δ ωοτϫʔΫܗ੒ ஌ࣝͷूੵͱڞ༗ ݹయ ޱ಄఻ঝͷΑ͏ͳ૒ํ޲తͳ΍ΓͱΓɺ޿৔తۭؒɺจ௨ ϦϯνɺσϚ — 2025 3-4 Web3 — 2025-06-16 – p.11/48

Slide 12

Slide 12 text

: End-to-End, GAFA — 2025 3-4 Web3 — 2025-06-16 – p.12/48

Slide 13

Slide 13 text

Y ⇒ ( ) ( ) ATM ( ATM ATM ) ⇒ ⇒ ⇒ ⇒ — 2025 3-4 Web3 — 2025-06-16 – p.13/48

Slide 14

Slide 14 text

Y ⇒ — 2025 3-4 Web3 — 2025-06-16 – p.14/48

Slide 15

Slide 15 text

Web3 (1) — ← Web3 NFT DAO — 2025 3-4 Web3 — 2025-06-16 – p.15/48

Slide 16

Slide 16 text

( ) NFT ( web3 ) NFT — 2025 3-4 Web3 — 2025-06-16 – p.16/48

Slide 17

Slide 17 text

— 2025 3-4 Web3 — 2025-06-16 – p.17/48

Slide 18

Slide 18 text

NFT Minecraft VRChat (VR) NFT NFT Minecraft — 2025 3-4 Web3 — 2025-06-16 – p.18/48

Slide 19

Slide 19 text

.JOFDSBGU ʙ ҉߸ࢿ࢈ɾ/'5⁇ 3PCMPY ʙ ҉߸ࢿ࢈ɾ/'5ʓ 73$IBU ʙ ҉߸ࢿ࢈ɾ/'5ʷ 5IF4BOECPY ʙ ҉߸ࢿ࢈ɾ/'5ʓ ̍ ೔ ͷ Ϣ ồ β ਺ 0 200000 400000 600000 ˞IUUQTNNPTUBUTDPN͕ఏڙ͢ΔσʔλΛݩʹ࡞੒ ZEPETO (2018∼) ( NFT ) The Sandbox 100 Roblox/Minecraft 1 10 Axie Infinity (2018∼) [ ] ( NFT ) The Sandbox 2 Decentraland (2020∼) ( NFT ) The Sandbox 1 10 — 2025 3-4 Web3 — 2025-06-16 – p.19/48

Slide 20

Slide 20 text

VRChat vs. NeosVR ( ) 73$IBU ʙ ҉߸ࢿ࢈ɾ/'5ʷ NeosVR (2018ʙ) ҉߸ࢿ࢈ɾ/'5ʓ ௚ۙ աڈ࣌ؒͷϐʔΫ աڈ࠷େͷϐʔΫ ಉ ࣌ ઀ ଓ Ϣ ồ β ਺ 0 10000 20000 30000 40000 ˞IUUQTTUFBNDIBSUTDPN͕ఏڙ͢Δ ɹσʔλΛݩʹ࡞੒ ˞ήʔϜϓϥοτ ϑΥʔϜ4UFBNͷ"1*͔Β ɹऔಘ͞ΕͨσʔλʹଇΔ NeosVR NFT ( ) VRChat — 2025 3-4 Web3 — 2025-06-16 – p.20/48

Slide 21

Slide 21 text

Interop Tokyo . . . . . . (1) (AGI) ∼ ∼ — 2025 3-4 Web3 — 2025-06-16 – p.21/48

Slide 22

Slide 22 text

( ) Web3 Web 3.0 World Wide Web Web 2.0 “web3.py” Python Ethereum NFT ( ) Web3 Web 3.0 — 2025 3-4 Web3 — 2025-06-16 – p.22/48

Slide 23

Slide 23 text

Web3 Web3 — 2025 3-4 Web3 — 2025-06-16 – p.23/48

Slide 24

Slide 24 text

Web 1-2-3 ͍ΘΏΔ 8FC 8FC ໰୊ͷۚ༥Խ Ϣʔβࣗ਎͕ʮ؆୯ʹʯσʔλͷੜ࢈ऀʹ ΋͏ͻͱͭ ͷࢭ༲ ࢭ༲ 4FNBOUJD8FC  l8FCzॳग़   8FC ˠ8FC           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 — 2025 3-4 Web3 — 2025-06-16 – p.24/48

Slide 25

Slide 25 text

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) — 2025 3-4 Web3 — 2025-06-16 – p.25/48

Slide 26

Slide 26 text

python 3.12.3 solc 0.8.30 ( ) (Solidity ( ) ) ( ) py-solc-x node v22.16.0 ganache v7.9.2 (Ethereum RPC + ) eth-brownie 1.20.7 (Python Ethereum ) web3 6.15.1 (Python Ethereum ) py-solc-x 1.1.1 (Solidity Python + ) macOS Sequoia 15.5 lima 1.0.7 Ubuntu 24.04 LTS — 2025 3-4 Web3 — 2025-06-16 – p.26/48

Slide 27

Slide 27 text

Python3 eth-brownie . . . $ python3 -m venv demoenv $ source demoenv/bin/activate $ pip install -U pip $ pip install eth-brownie==1.20.7 eth-brownie web3.py — 2025 3-4 Web3 — 2025-06-16 – p.27/48

Slide 28

Slide 28 text

Ethereum Python NFT — 2025 3-4 Web3 — 2025-06-16 – p.28/48

Slide 29

Slide 29 text

: Bitcoin . . . : ( : ) ( ) : : : ⇒ — 2025 3-4 Web3 — 2025-06-16 – p.29/48

Slide 30

Slide 30 text

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 ɹΛ໦ߏ଄ʹදݱͨ͠΋ͷͰ ෆ੔߹ͷݕग़ʹ༻͍ΒΕΔ . . . ETH ETH — 2025 3-4 Web3 — 2025-06-16 – p.30/48

Slide 31

Slide 31 text

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) # — 2025 3-4 Web3 — 2025-06-16 – p.31/48

Slide 32

Slide 32 text

&UIFSFVNωοτϫʔΫ  &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 ɹεϚʔτίϯτϥΫτ͸ಈ࡞͠ͳ͍ . . . Ethereum (EVM) ETH ↑ DAO — 2025 3-4 Web3 — 2025-06-16 – p.32/48

Slide 33

Slide 33 text

$ brownie bake nft nft ( ) contracts SimpleCollectible.sol ERC-721 NFT $ cd nft # nft $ brownie console # eth-brownie (Python ) >>> network.disconnect() # >>> network.connect(’sepolia’) # Ethereum >>> accounts.add( ) # >>> collectible = SimpleCollectible.deploy({’from’: accounts[0]}) # NFT 1,435,343 Gas Invalid version brownie-config.yaml [email protected] (2 ) contracts SimpleCollectible.sol — 2025 3-4 Web3 — 2025-06-16 – p.33/48

Slide 34

Slide 34 text

NFT (Non-Fungible Token) 1 → ( ) → ( ) ( ) ( ) NFT NFT — 2025 3-4 Web3 — 2025-06-16 – p.34/48

Slide 35

Slide 35 text

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 ɹྫ͑͹ 63- ʹͦΕ͕ࢦ͢Ϧιʔεͷ҉߸ֶతμΠδΣετΛؚΊΔ͜ͱ ྫ *1'4 ͷར༻ ʹΑΓ ɹ ʮ63-ˠσʔλʯͷҰҙੑΛอͯΔ ͦͷ৔߹Ͱ΋ʮσʔλˠ63-ʯͷҰҙੑ͸ແ͍ ର৅σʔλ ը૾౳ ॴ༗ऀ ϝλσʔλ 63- ର৅σʔλ 63- ൿີ伴 Ұҙ Ұҙʁ Ϣʔβ Ұҙʁ — 2025 3-4 Web3 — 2025-06-16 – p.35/48

Slide 36

Slide 36 text

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) # — 2025 3-4 Web3 — 2025-06-16 – p.36/48

Slide 37

Slide 37 text

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 — 2025 3-4 Web3 — 2025-06-16 – p.37/48

Slide 38

Slide 38 text

NFT NFT NFT >>> collectible.ownerOf( NFT ID) # >>> collectible.ownerOf( NFT ID) # NFT Ethereum Ethereum NFT NFT Ethereum Lazy Minting (?) ( ) (Gas ) — 2025 3-4 Web3 — 2025-06-16 – p.38/48

Slide 39

Slide 39 text

DAO (Decentralized Autonomous Organization) — 2025 3-4 Web3 — 2025-06-16 – p.39/48

Slide 40

Slide 40 text

DAO ಺෦ࢿຊˢ͋Δ ɹɹɹɹˣͳ͍ தԝʹࣗಈ ɹɹɹɹɹWT ɹɹɹɹɹɹதԝʹਓؒ ׬શͳ "* σʔϞϯ˞ ϑΥʔϥϜ˞ XFC αʔϏε ϩϘοτΛ࢖໾ %"0 %"QQ˞ ݹయత૊৫ ɹɹɹɹɹपลʹਓؒ ɹɹɹɹWT पลʹࣗಈ ˞%"QQεϚʔτίϯτϥΫτʹΑΔΞϓϦέʔγϣϯ %FDFOUSBMJ[FE"QQ ˞ϑΥʔϥϜਓʑ͕ಛఆͷ࿩୊ʹ͍ͭͯٞ࿦ͨ͠Γ৘ใΛަ׵ͨ͠Γ͢Δ৔ ˞σʔϞϯόοΫάϥ΢ϯυͰՔಇ͠ ΠϕϯτʹࣗಈతʹରԠ͢ΔϓϩάϥϜ . . . Buterin DAO (2014) — 2025 3-4 Web3 — 2025-06-16 – p.40/48

Slide 41

Slide 41 text

DAO $ brownie bake dao README https://github.com/brownie-mix/dao-mix ( OpenZeppelin ) ( ) ( DAO ) ( ) DAO . . . (2024 4 ) DAO ( ) — 2025 3-4 Web3 — 2025-06-16 – p.41/48

Slide 42

Slide 42 text

DAO Bitcoin DAO → DAO Ethereum DAO → . . . DAO ( ) ( ) DAO → . . . ( ) ↑ ( ) ← — 2025 3-4 Web3 — 2025-06-16 – p.42/48

Slide 43

Slide 43 text

— Web 3.0 ( ) ( ) ( . . . ) ( ) . . . DAO . . . — 2025 3-4 Web3 — 2025-06-16 – p.43/48

Slide 44

Slide 44 text

Web3 (2) — — 2025 3-4 Web3 — 2025-06-16 – p.44/48

Slide 45

Slide 45 text

: API Pay API (Application Programming Interface) — 2025 3-4 Web3 — 2025-06-16 – p.45/48

Slide 46

Slide 46 text

— 2025 3-4 Web3 — 2025-06-16 – p.46/48

Slide 47

Slide 47 text

2. (1) (end; ) (2) 2025 6 19 ( ) 23:59 JST ( ) Waseda Moodle — 2025 3-4 Web3 — 2025-06-16 – p.47/48

Slide 48

Slide 48 text

— 2025 3-4 Web3 — 2025-06-16 – p.48/48