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レッジャー技術の1年史 FY2017 / Brief One-Year History of Ledger Technology FY2017
Kenji Saito
PRO
March 08, 2018
Technology
0
240
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。
Kenji Saito
PRO
March 08, 2018
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Transcript
1 FY2017 — — SFC /
[email protected]
1 FY2017 —
— 2017-03-08 – p.1/18
( ) SFC ( ) CSO (Chief Science Officer) 1993
( ) 2006 ( ) SFC 17 P2P (Peer-to-Peer) 2011 → ( ) 1 FY2017 — — 2017-03-08 – p.2/18
( R&D, 2017.12) : SF + + Amazon 1 (
) 2048 1 FY2017 — — 2017-03-08 – p.3/18
1 FY2017 — — 2017-03-08 – p.4/18
( ) XEM( ) ICO (Initial Coin Offering) ← .
. . 1 FY2017 — — 2017-03-08 – p.5/18
( ) (( ) ) ⇓ ⇓ “Code is Law”
1 FY2017 — — 2017-03-08 – p.6/18
1 FY2017 — — 2017-03-08 – p.7/18
1 2,500 / . . . 1 FY2017 — —
2017-03-08 – p.8/18
: 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
9 2 2 1 FY2017 — — 2017-03-08 – p.10/18
1 2017 1 FY2017 — — 2017-03-08 – p.11/18
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
Segregated Witness (SegWit) SegWit ( ) 1. (malleability) 2. 3.
4. 5. 6. UTXO 7. 8. TX ← 9. 1 FY2017 — — 2017-03-08 – p.13/18
Ethereum Metropolis (Byzantium) Frontier Homestead Metropolis Byzantium (2017) zkSNARKs (
) → Zcash on Ethereum (ZoE) Constantinople (2018) Serenity 1 FY2017 — — 2017-03-08 – p.14/18
DAG DAG ( ) DAG 1 FY2017 — — 2017-03-08
– p.15/18
Beyond Blockchain One (BBc-1) 1 FY2017 — — 2017-03-08 –
p.16/18
Beyond Blockchain One (BBc-1) #JUDPJO ͦͷଞͷ ύϒϦοΫϨοδϟʔ BBc-1 ΦʔϓϯͰύϒϦοΫͳɹࢄϨοδϟʔ ࢄετϨʔδཧ
αʔόϨε ۃྗϝΠϯςφϯεϑϦʔ ͳ࣮ߦڥ 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
Introducing BBc-1 — ਖ਼ੑͷอূ 6590 ࣝผࢠͱެ։ݤͷ υϝΠϯͰͷݕূ ࠴ݖͱͯ͠ͷΞηοτ #Z[BOUJOF1BYPT
ωΠςΟϒ௨՟Λͨͳ͍ υϝΠϯ࣏ࣗ υϝΠϯؒͷཤྺަࠩ ॳظʹ͓͍ͯϒϩοΫνΣʔϯͷΞϯΧϦϯά ଘࡏͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε https://beyond-blockchain.org offi
[email protected]
1 FY2017 — — 2017-03-08 – p.18/18