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Ethereum 2.0 の現状と課題 / Ethereum 2.0 Now and Challenges
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Kenji Saito
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February 20, 2020
Technology
1
150
Ethereum 2.0 の現状と課題 / Ethereum 2.0 Now and Challenges
2020年2月20日(木)、早稲田大学にて開催された自律分散社会フォーラム(DASF) 第26 回定例フォーラムでの講演にて使用したスライドです。
Kenji Saito
PRO
February 20, 2020
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Transcript
Ethereum 2.0 (DASF) 26 /
[email protected]
Ethereum 2.0 — 2020-02-20
– p.1/12
(1) Ethereum 1.0 (2) Ethereum 2.0 (3) Ethereum 2.0 —
2020-02-20 – p.2/12
= ( ) run = → Ethereum 2.0 — 2020-02-20
– p.3/12
Ether Ethereum EOA : Externally-Owned Account ( ) ( )
Ether ( ) EVM EVM = Ethereum = Ethereum 2.0 — 2020-02-20 – p.4/12
EVM : Ethereum Virtual Machine Gas ( EVM = )
→ Ethereum 2.0 — 2020-02-20 – p.5/12
Ethereum ( + ) ⇒ Ethereum Ethereum 2.0 ( )
(ETH1/2 ) Ethereum 2.0 — 2020-02-20 – p.6/12
Ethereum Frontier (2015) Homestead (2016) Metropolis Byzantium (2017) zk-SNARKs (
) → Zcash on Ethereum (ZoE) Constantinople + St.Petersburg (2019) (for 2nd Layer) Proof of Stake Istanbul (2019) ← Zcash zk-SNARKs/STARKs Serenity Ethereum 2.0 phase 0 (2020 ) Ethereum 2.0 — 2020-02-20 – p.7/12
Ethereum 2.0 Phase 0 ← Ethereum 1.0 Beacon Chain Ethereum
1.0 Phase 1 ( ) (Beacon Chain ) (crosslink ) ETH2 Phase 2 (EE) ( EE ) EVM → eWASM (Ethereum WebAssembly) Ethereum 1.0 EVM eWASM (?) (2021 ) Ethereum 2.0 — 2020-02-20 – p.8/12
Casper (2020 ) Nothing at Stake (Slasher) stake 100 ⇒
( ) → Ethereum 2.0 — 2020-02-20 – p.9/12
Ethereum 2.0 Phase 0 Beacon Chain Deposit Contract 32 ETH
32 ETH2 1 10% ETH2 ETH2 (65,536ETH) ETH Deposit Contract Ethereum 2.0 — 2020-02-20 – p.10/12
( ) PoS . . . PoW ( ) (
) ( ) Ethereum 2.0 — 2020-02-20 – p.11/12
Ethereum 2.0 — 2020-02-20 – p.12/12