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

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
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March 08, 2018
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  1. 1 FY2017 — — SFC / [email protected] 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[BOUJOF1BYPT౳

    ωΠςΟϒ௨՟Λ΋ͨͳ͍ υϝΠϯ಺࣏ࣗ υϝΠϯؒͷཤྺަࠩ ॳظʹ͓͍ͯ͸ϒϩοΫνΣʔϯ΁ͷΞϯΧϦϯά ଘࡏͷূ໌ །Ұੑͷ߹ҙ Ψόφϯε https://beyond-blockchain.org offi[email protected] 1 FY2017 — — 2017-03-08 – p.18/18