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ブロックチェーン概論 / Overview of Blockchains

Kenji Saito
November 10, 2017

ブロックチェーン概論 / Overview of Blockchains

2017年10月10日(金)、Clip ニホンバシにて開催したブロックチェーンアカデミー「ブロックチェーン概論」にて使用したスライドです。

Kenji Saito

November 10, 2017
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  1. CSO / SFC
    [email protected]
    — — 2017-10-13 – p.1/40

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  2. ( )
    SFC ( )
    CSO (Chief Science Officer)
    1993 M.Eng ( )
    2006 ( )
    SFC 17
    P2P
    2011
    → ( )
    — — 2017-10-13 – p.2/40

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  3. — — 2017-10-13 – p.3/40

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  4. (by Satoshi Nakamoto)
    Satoshi
    ( )
    (block; , )
    (chain; )
    — — 2017-10-13 – p.4/40

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  5. ( )
    P2P
    ( )
    (double spending)
    ⇒ ( )

    — — 2017-10-13 – p.5/40

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  6. 1)
    2)
    3)


    — — 2017-10-13 – p.6/40

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  7. /DLT(Distributed Ledger Technology)
    ( )
    Bitcoin ( )
    Open Assets Protocol (OAP)
    ( )
    Ethereum ( ) ( )
    Enterprise Ethereum Alliance (↓ )
    (DLT) ( )
    Hyperledger (Linux Foundation)
    Fabric (IBM/DAH), Sawtooth (Intel), Iroha ( )
    Corda (R3), Tangle (IOTA)
    — — 2017-10-13 – p.7/40

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  8. Beyond Blockchain One (BBc-1)
    #JUDPJO
    ͦͷଞͷ
    ύϒϦοΫϨοδϟʔ
    BBc-1
    ΦʔϓϯͰύϒϦοΫͳɹ෼ࢄϨοδϟʔ
    ෼ࢄετϨʔδ؅ཧ
    αʔόϨε ۃྗϝΠϯςφϯεϑϦʔ
    ͳ࣮ߦ؀ڥ
    ΞϓϦέʔγϣϯ
    ͦ
    ͷ

    ͞
    ·
    ͟
    ·
    ͳ
    Ξ
    ϓ
    Ϧ
    ͷ
    Մ


    σδλϧ௨՟ 4%, σδλϧΞηοτ "1*
    ##D ։ൃ߲໨
    ҠߦΞγελϯτ

    Ҭ

    ՟
    Ξ
    ϓ
    Ϧ
    ϙ
    Π
    ϯ
    τ
    Ξ
    ϓ
    Ϧ




    Ξ
    ϓ
    Ϧ
    ʜ
    ॳظ
    λʔήοτ
    ॳظ
    λʔήοτ
    ॳظʹ͓͍ͯଘࡏূ໌Λґଘ
    ݸʑͷετϨʔδαʔϏε
    Մೳͳλʔήοτ
    2017 10 31 (https://github.com/beyond-blockchain/bbc1)
    — — 2017-10-13 – p.8/40

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  9. (1) —
    — — 2017-10-13 – p.9/40

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  10. (2) —
    RSA, DSA, ECDSA ( DSA; ), etc.
    RSA ← ( )
    — — 2017-10-13 – p.10/40

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  11. ( )
    1. 10 ( )
    2.
    3. 1
    — — 2017-10-13 – p.11/40

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  12. /DLT
    End-to-End
    ( ) ( )
    — — 2017-10-13 – p.12/40

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  13. ( / )
    EVM ( )
    EVM (Ethereum Virtual Machine) Gas ( CPU )
    — — 2017-10-13 – p.13/40

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  14. — — 2017-10-13 – p.14/40

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  15. (Hyperledger )
    ( )
    ( )
    ( )
    IoT
    / /
    ( , )
    — — 2017-10-13 – p.15/40

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  16. :
    . . .
    : Proof of Existence, Everledger, Factom,
    . . .
    (OP_RETURN )
    ( )
    ( )
    — — 2017-10-13 – p.16/40

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  17. ( KVS DHT)
    — — 2017-10-13 – p.17/40

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  18. — — 2017-10-13 – p.18/40

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  19. (2009 1 ∼2017 11 )
    2 → 2
    2 →
    — — 2017-10-13 – p.19/40

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  20. vs.
    — — 2017-10-13 – p.20/40

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  21. The DAO ( )
    The DAO
    Split ( ) 360 ETH (50∼60 ) (2016/6/17)
    ( → )
    ( → ; )
    ( )
    (2016/7/20 )
    — — 2017-10-13 – p.21/40

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  22. — — 2017-10-13 – p.22/40

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  23. :


    — — 2017-10-13 – p.23/40

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  24. Ether
    Ether
    Ether
    . . .
    BTC
    Everledger, Factom
    OAP

    — — 2017-10-13 – p.24/40

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  25. 3
    1. ( : UTXO )
    ⇒ ( )
    2. ( : )

    3. ( : )
    TX ⇒
    2 3
    — — 2017-10-13 – p.25/40

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  26. — — 2017-10-13 – p.26/40

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  27. ( )
    (by ) (since 1984) ( ) ( )
    ( )
    . . .
    ( )
    — — 2017-10-13 – p.27/40

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  28. ( )
    ( ) ( ) ( ) ( )
    ( )
    (by )
    — — 2017-10-13 – p.28/40

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  29. Q. ( )
    ( = / = )

    — — 2017-10-13 – p.29/40

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  30. ( )
    ( ) ( )
    — — 2017-10-13 – p.30/40

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  31. ( )
    /
    /
    — — 2017-10-13 – p.31/40

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  32. 1. ( )
    2. ( )
    3. ( )
    — — 2017-10-13 – p.32/40

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  33. → 30
    : ×
    — — 2017-10-13 – p.33/40

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  34. OS (2007)
    — — 2017-10-13 – p.34/40

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  35. Amazon Go

    — — 2017-10-13 – p.35/40

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  36. ( JPY )
    MUFG J S
    (“Cause-Oriented Economy”)

    — — 2017-10-13 – p.36/40

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  37. (4 )
    ( )
    — — 2017-10-13 – p.37/40

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  38. ( )

    (AI )




    / /
    — — 2017-10-13 – p.38/40

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  39. ( )
    11/15
    11/22
    11/29
    12/7( ) 2.0
    12/13
    12/20
    — — 2017-10-13 – p.39/40

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  40. — — 2017-10-13 – p.40/40

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