レッジャー技術の1年史 FY2017 / Brief One-Year History of Ledger Technology FY2017

2018年3月8日(木)、GLOCOM にて開催された『ブロックチェーン技術の展開と課題　～2017年度の総括と今後の展望～』での講演にて使用したスライドです。

Transcript

1. 1 FY2017 — — SFC / ks91@sfc.wide.ad.jp 1 FY2017 — — 2017-03-08 – p.1/18
2. ( ) SFC ( ) CSO (Chief Science Officer) 1993 ( ) 2006 ( ) SFC 17 P2P (Peer-to-Peer) 2011 → ( ) 1 FY2017 — — 2017-03-08 – p.2/18
3. ( R&D, 2017.12) : SF + + Amazon 1 ( ) 2048 1 FY2017 — — 2017-03-08 – p.3/18
4. 1 FY2017 — — 2017-03-08 – p.4/18
5. ( ) XEM( ) ICO (Initial Coin Offering) ← . . . 1 FY2017 — — 2017-03-08 – p.5/18
6. ( ) (( ) ) ⇓ ⇓ “Code is Law” 1 FY2017 — — 2017-03-08 – p.6/18
7. 1 FY2017 — — 2017-03-08 – p.7/18
8. 1 2,500 / . . . 1 FY2017 — — 2017-03-08 – p.8/18
9. : 2,500 / https://en.bitcoin.it/wiki/Mining_hardware_comparison 1 4000Mhash/J 4000MH(hash)/J = 4GH/J = 0.004TH/J 25,000,000Thash/s ÷ 0.004Thash/J = 6,250,000,000J/s = 6.25GJ/s ⇒ J/s W( ) 6.25GW ( ) 600GW 2.5GW 125 1 FY2017 — — 2017-03-08 – p.9/18
10. 9 2 2 1 FY2017 — — 2017-03-08 – p.10/18
11. 1 2017 1 FY2017 — — 2017-03-08 – p.11/18
12. 1 2017 3 : Hyperledger Fabric Active 4 : Monacoin SegWit Activation ← 5 : Litecoin SegWit Activation ← 5 : Hyperledger Sawtooth Active 5 : Hyperledger Iroha Active 7 : Hyperledger Fabric v1.0 8 : Bitcoin Cash 8 : Bitcoin SegWit Activation 10 : Ethereum Metropolis (Byzantium) 10 : Beyond Blockchain One (BBc-1) v0.7 3 : Beyond Blockchain One (BBc-1) v0.9 1 FY2017 — — 2017-03-08 – p.12/18
13. Segregated Witness (SegWit) SegWit ( ) 1. (malleability) 2. 3. 4. 5. 6. UTXO 7. 8. TX ← 9. 1 FY2017 — — 2017-03-08 – p.13/18
14. Ethereum Metropolis (Byzantium) Frontier Homestead Metropolis Byzantium (2017) zkSNARKs ( ) → Zcash on Ethereum (ZoE) Constantinople (2018) Serenity 1 FY2017 — — 2017-03-08 – p.14/18
15. DAG DAG ( ) DAG 1 FY2017 — — 2017-03-08 – p.15/18
16. Beyond Blockchain One (BBc-1) 1 FY2017 — — 2017-03-08 – p.16/18
17. Beyond Blockchain One (BBc-1) #JUDPJO ͦͷଞͷ ύϒϦοΫϨοδϟʔ BBc-1 ΦʔϓϯͰύϒϦοΫͳɹ
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    
    ෼ࢄϨοδϟʔ ෼ࢄετϨʔδ؅ཧ αʔόϨε
    ۃྗϝΠϯςφϯεϑϦʔ
    ͳ࣮ߦ؀ڥ ΞϓϦέʔγϣϯ ͦ ͷ ଞ ͞ · ͟ · ͳ Ξ ϓ Ϧ ͷ Մ ೳ ੑ σδλϧ௨՟ 4%, σδλϧΞηοτ "1* ##D ։ൃ߲໨ ҠߦΞγελϯτ ஍ Ҭ ௨ ՟ Ξ ϓ Ϧ ϙ Π ϯ τ Ξ ϓ Ϧ དྷ ྺ ূ ໌ Ξ ϓ Ϧ ʜ ॳظ λʔήοτ ॳظ λʔήοτ ॳظʹ͓͍ͯଘࡏূ໌Λґଘ ݸʑͷετϨʔδαʔϏε Մೳͳλʔήοτ 2017 10 31 (https://github.com/beyond-blockchain/bbc1) 1 FY2017 — — 2017-03-08 – p.17/18
18. Introducing BBc-1 — ਖ਼౰ੑͷอূ 6590
    
    ࣝผࢠͱެ։ݤͷ෼཭
    υϝΠϯ಺Ͱͷݕূ ࠴ݖͱͯ͠ͷΞηοτ
    #Z[BOUJOF
    1BYPT
    ౳ ωΠςΟϒ௨՟Λ΋ͨͳ͍
    υϝΠϯ಺࣏ࣗ υϝΠϯؒͷཤྺަࠩ
    ॳظʹ͓͍ͯ͸ϒϩοΫνΣʔϯ΁ͷΞϯΧϦϯά ଘࡏͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε https://beyond-blockchain.org office@beyond-blockchain.org 1 FY2017 — — 2017-03-08 – p.18/18