ビットコインとか勉強会#14 openassets-rubyで学ぶOpen Assets Protocol

2018年2月1日ビットコインとか勉強会#14「openassets-rubyで学ぶOpen Assets Protocol」の資料です。
https://cryptocurrency.connpass.com/event/76801/

Transcript

1. ϏοτίΠϯͱ͔ษڧձ
   PQFOBTTFUTSVCZͰֶͿ 0QFO
   "TTFUT
   1SPUPDPMೖ໳ 
   খᔹ
   पʢ4IV
   ,PCVDIJʣ
2. ࣗݾ঺հ w খᔹ
   प 4IV
   ,PCVDIJ
   w ೥ྸɿY'ࡀʢࠓ೥ͰYࡀʂʂʣ
   w ࠷ऴֶྺɿϒϩοΫνΣʔϯେֶߍΤϯδχΞ ϒϩϯζίʔε ̐ظੜ
   w ΩϡʔϒγεςϜ
   ͷاը෦໳
   w ϒϩοΫνΣʔϯਪਐڠձ #$$$ ձһ
   w #$$$Ծ૝௨՟;&/ࣾձ࣮ݧʹࢀՃ
   w ϒϩοΫνΣʔϯϋϒίʔϙϨʔτձһ
   w ϏϤϯυϒϩοΫνΣʔϯਖ਼ձһ
3. $PMPSFE
   $PJOT w #JUDPJOτϥϯβΫγϣϯʹσʔλΛॻ͖ࠐΉ͜ͱͰ#5$Ҏ֎ͷτʔΫ ϯΛදݱ͢Δٕज़ͷ૯শ
   w ओʹͭͷن֨ʢ0QFO
   "TTFUT
   1SPUPDPM
   $PMV
   $PJO4QBSL
   $ISPNB8BMMFU $ISPNBXBZ ʣ͕͋ΓɺͦΕͧΕޓ׵ੑ͸ͳ͍
   w ಠࣗ௨՟͕ඞཁͳ$PVOUFS
   1BSUZ 9$1 ɺ0NOJͱ͸ҟͳΓɺ#5$ͷΈ ͰτʔΫϯൃߦ͕Մೳ
   w ޿ٛͷҙຯͰɺϒϩοΫνΣʔϯϓϥοτϑΥʔϜ্ʹൃߦ͢Δಠࣗτʔ ΫϯΛ$PMPSFE
   $PJOͱݺͿ͜ͱ͕͋Δʢ&UIFSFVN্ͷτʔΫϯͳͲʣ
   w ࢀߟʣIUUQTKQCJUDPJODPNCJUDPJODPMPSFEDPJO
4. 0QFO
   "TTFUT
   1SPUPDPM w 8IJUFQFQBSʣIUUQTHJUIVCDPN0QFO"TTFUTPQFOBTTFUT QSPUPDPMCMPCNBTUFSBEESFTTGPSNBUNFEJBXJLJ
   w ҆౔ໜږࢯʹΑΔ೔ຊޠ༁ʣIUUQUFDINFEJBUIJOLIBUFOBCMPHDPN FOUSZ
   w $PMPSFE
   $PJOTͷதͰ୅දతͳ࣮૷ن֨
   w #JUDPJOωοτϫʔΫ্ʹ୭Ͱ΋ಠࣗτʔΫϯΛൃߦɾҠసͰ͖Δ
   w /BTEBR͕ະެ։גऔҾͷ࣮ݧʹ࢖༻
   w 7"-6ͷτʔΫϯʹར༻ʢͨͩ͠ɺϒϩοΫνΣʔϯ্ͰൃߦͷΈͰҠస͠ ͍ͯͳ͍ʣ
5. 0QFO
   "TTFUTͷϥΠϒϥϦ w #JUDPJO
   $PSF CJUDPJOE ʹ͸0QFO
   "TTFUTΛѻ͏ػೳ͸ͳ͍ͷͰϥΠϒϥϦΛ༻͍Δ
   w IUUQTHJUIVCDPN0QFO"TTFUTPQFOBTTFUTQSPUPDPM
   w PQFOBTTFUT 1ZUIPO
   NPEVMF ϦϑΝϨϯε࣮૷
   w $PMPSDPSF 1ZUIPO
   31$
   JOUFSGBDF
   w /#JUDPJO
   $/&5
   5SBOTBDUJPO
   #VJMEFS
   w #5$3VCZ
   SVCZ
   5SBOTBDUJPO
   #VJMEFS
   w $PSF#JUDPJO
   0CKFDUJWF$
   w PQFOBTTFUTSVCZ
   SVCZ
   31$
   JOUFSGBDF
6. PQFOBTTFUTSVCZ w IUUQTHJUIVCDPNIBXJUOPQFOBTTFUTSVCZ
   w גࣜձࣾϋ΢Πϯλʔφγϣφϧऔక໾
   
   ҆౔ໜږࢯ͕ɹ։ ൃ
   w #JUDPJO
   $PSF CJUDPJOE ͱซ༻ͯ͠0QFO
   "TTFUTΛऔΓѻ ͏
   w ϒϩοΫνΣʔϯɾϓϩάϥϛϯά
   Ծ૝௨՟ೖ໳ɹɹʢࢁ ࡚ॏҰ࿠ɾ҆౔ໜږɾాதढ़ଠ࿠
   ஶɹߨஊࣾग़൛ʣʹ࢖༻ ๏͕هࡌ
7. ϒϩοΫνΣʔϯɾϓϩάϥϛϯά
   Ծ૝௨՟ೖ໳ w ॻ੶൛ɺ,JOEMF൛΋͋Γ
8. PQFOBTTFUTSVCZͷઃఆ w 1PSU͸.BJOOFU͕
   5FTUOFUͱ3FH5FTU͕
   require ‘openassets' Bitcoin.network = :testnet3 api = OpenAssets::Api.new({ network: ‘testnet', rpc: { user: ‘user', password: ‘password’, schema: ‘http', port: 18332, host: ‘localhost' } })
9. ൃߦՄೳͳΞυϨεͷ֬ೝ w ΢ΥϨοτ಺ͷ6590ͷ֬ೝ
   utxo_list = api.list_unspent puts JSON.pretty_generate(utxo_list) w ൃߦͰ͖Δ#5$Λ͍࣋ͬͯΔΞυϨεͷऔಘ
   $ ruby utxo_list.rb [ { "txid": "6737e6d435a2a1066c7b0800175aa94c756e4c0757b60e86c52d199fd5009cce", "vout": 0, "confirmations": 1, "address": "mkdPS159HV6Jfuk7nUH7aKTh4hqmFPqY4n", "oa_address": "bWvbGgAtUkxyzY9uUq6PJEBNGQK1wH3Dqt2", "script": "76a91438101ba7d5652130645bce0d73da9a86b10309da88ac", "script_type": "pubkeyhash", "amount": "1.30000000", "asset_id": null, "asset_quantity": "0", "asset_amount": "0", "account": "openassets", "asset_definition_url": "", "proof_of_authenticity": false, "output_type": "uncolored", "solvable": true, "spendable": true } ]
10. 5FTUOFU
    #5$͕ͳ͍৔߹ w 'BVDFUͰ΋Β͏ʢ'BVDFU͸͍͔ͭ͋͘Δʣ
    w IUUQTUFTUOFUNBOVCBDLFOEIBNCVSHGBVDFU
    w IUUQUQGBVDFUBQQTQPUDPN
11. "TTFU
    *%ͷऔಘ w "TTFU
    *%ΛಘΔͨΊͷ3VCZϓϩάϥϜΛ࡞੒
    # Bitcoin Address btc_address = 'mkdPS159HV6Jfuk7nUH7aKTh4hqmFPqY4n' # Bitcoin Address͔Βެ։伴ͷHash160Λܭࢉ hash160 = Bitcoin.hash160_from_address(btc_address) # ެ։伴ͷHash160͔ΒAsset IDΛܭࢉ asset_id = OpenAssets.pubkey_hash_to_asset_id(hash160) puts asset_id w ࣮ߦ݁Ռʢ"TTFU
    *%ΛಘΒΕͨʣ
    $ ruby get_assetid.rb ogCpkuknNNnusz8CN817QNkEezBNAT5qgL
12. #5$͸ൃߦओମ͕ͳ͍ w #5$ʹ͸ൃߦओମ͕ͳ͍ */ 065 59 */ 065 59 */ 065 59 */ 065 59 */ 065 59 DPJOCBTF 065 $PJOCBTF59 ϚΠφʔใुͰ৽نੜ੒
    ೖྗͷిࢠॺ໊͕ͳ͍
13. τʔΫϯͷൃߦओମ w #5$ʹ͸ൃߦओମ͕ͳ͍͕ɺ0QFO
    "TTFUT
    1SPUPDPMʹ͸ ൃߦओମ͕ଘࡏ͢Δ */ 065 59 */ 065 59 */ 065 59 */ 065 59 065 59 ൃߦ࣌ʹ59࡞੒ऀ ૹۚऀ ͷ
    ిࢠॺ໊͕ඞཁ */ */ 065 59 */ 065 59 .BSLFS
    0VUQVU
14. "TTFU
    *% w ϏοτίΠϯΞυϨεͱ"TTFU*%͸̍ର̍ͰରԠ
    w ಉ͡ϏοτίΠϯΞυϨε͔Β࠶ൃߦ͢Ε͹૿ൃߦ
    w ϏοτίΠϯͷൿີ伴
    㱺
    ެ։伴
    w 㱺
    11,)εΫϦϓτੜ੒
    㱺
    ϋογϡੜ੒
    w 㱺
    #BTFͰΤϯίʔυ͢Δͱ"TTFU*%͕ಘΒΕΔ
15. "TTFU
    *% w ެ։伴͔Βϋογϡ ෆՄٯ ͯ͠"TTFU
    *%ΛಘΔͨΊɺ "TTFU
    *%͔ΒൃߦऀͷΞυϨεΛ஌Δ͜ͱ͸Ͱ͖ͳ͍
    w ൃߦऀͷΞυϨεΛ஌Δʹ͸ɺΞηοτͷ59Λલʹḷͬ ͯߦ͖ɺൃߦ࣌ͷ59Λݟ͚ͭΔ͔͠ͳ͍
    w ͦͷͨΊʹ͸417ϊʔυͰ͸ແཧͰɺϑϧϊʔυͰͳ͍ͱ ൃߦ࣌ͷ59·ͰḷΕͳ͍
16. 0QFO
    "TTFUT
    "EESFTT w 0QFO
    "TTFUT͸#JUDPJOඪ४ػೳͰ͸ͳ͍
    w 0QFO
    "TTFUTΛؚΉ6590ΛϏοτίΠϯͱͯ͠ૹ෇͢ ΔͱΞηοτ͸ফ٫͞ΕΔ
    w ૬ख͕0QFO
    "TTFUTʹରԠͨ͠΢ΥϨοτͰͳ͍ͱ͍͚ ͳ͍
    w ޡͬͨૹ෇Λ๷͙ͨΊʹɺ0QFO
    "TTFUTಠࣗͷΞυϨε ͕༻ҙ͞Ε͍ͯΔ
17. 0QFO
    "TTFUT
    "EESFTT w 
    ެ։伴ϋογϡ
    BGCɹΛCBTFΤϯίʔυ ͰϏοτίΠϯΞυϨε
    w 
    
    ެ։伴ϋογϡ
    EFFDBɹΛCBTFΤϯί ʔυͰ0QFO
    "TTFUT
    "EESFTT
    w 0QFO
    "TTFUT
    "EESFTT͔Β#JUDPJO
    "EESFTT͸ٻΊΒΕ ΔʢՄٯʣ
18. "TTFUͷఆٛ w BTTFU@EFpOJUJPOKTPO
    { "asset_ids": [ “ogCpkuknNNnusz8CN817QNkEezBNAT5qgL" ], "contract_url": “", "name_short": “ORB", "name": “ORANGEBEAM", "issuer": "Shu Kobuchi”, "description": "Lightning NetworkϊʔυՔಇه೦”, "description_mime": "text/x-markdown; charset=UTF-8", "type": “Currency", "divisibility": 1, "link_to_website": false, "image_url": “", "version": “1.0" }
19. EJWJTJCJMJUZ w EJWJTJCJMJUZɿখ਺఺ΛͲ͜ʹ࣋ͬͯ͘Δ͔
    w "TTFU
    2VBOUJUZʢ੔਺ʣʹରͯ͠ɺEJWJTJCJMJUZͷ਺͚ͩখ ਺఺Λࠨʹಈ͔͢͠ɺ"TTFU
    "NPVOUͱ͢Δ
    w "TTFU
    2VBOUJUZ͕ͰɺEJWJTJCJMJUZ͕̎ͩͱɺ "TTFU
    "NPVOU͸ͱͳΔ
    w "TTFU
    %FpOJUJPO
    'JMF͕ͳ͍ͳͲΞηοτͷఆ͕ٛͳ͍৔ ߹͸ɺ"TTFU
    2VBOUJUZͱ"TTFU
    "NPVOU͸ಉ஋
20. Ξηοτఆٛͷొ࿥ w BTTFU@EFpOJUJPOKTPOΛ(JU)VC(JTUͳͲʹొ࿥͠ɺ3BXΛԡ ͢ɻ63-Λίϐʔ͠ɺ(PPHMF
    63-
    4IPSUFOFSͳͲͰ୹ॖ
    w IUUQTHPPHM#%C,+P
21. Ξηοτͷൃߦ w Ξηοτൃߦͷ3VCZϓϩάϥϜ ઃఆΛॻ͔͘ݺͼग़͢
    # Bitcoin Address btc_address = ‘mkdPS159HV6Jfuk7nUH7aKTh4hqmFPqY4n' # Bitcoin Address͔Βެ։伴ͷHash160Λܭࢉ hash160 = Bitcoin.hash160_from_address(btc_address) # ެ։伴ͷHash160͔ΒAsset IDΛܭࢉ asset_id = OpenAssets.pubkey_hash_to_asset_id(hash160) # Bitcoin Address͔ΒOpen Assets Addressʹม׵ oa_address = OpenAssets.address_to_oa_address(btc_address) puts "oa_address: " + oa_address # metadata metadata = 'u=https://goo.gl/BDbKJo' tx = api.issue_asset(oa_address, 100000000, metadata) w ࣮ߦ݁Ռʢߦ໨͕τϥϯβΫγϣϯ*%ʣ
    $ ruby issue.rb oa_address: bWvbGgAtUkxyzY9uUq6PJEBNGQK1wH3Dqt2 f110ec2d5511bbbe0b38f77a72cdb49ef152b15ed2c7b2d5c02904c681c08c94
22. #MPDLDIBJO
    &YQMPSFSͰ֬ೝ w GFDECCCFCGBDECFGCFE DCEDDDD
    w IUUQTMJWFCMPDLDZQIFSDPNCUDUFTUOFU
23. ൃߦ࣌ͷτϥϯβΫγϣϯ w %VTU
    
    0QFO
    "TTFUTΛૹ৴͢Δͷʹඞཁͳ࠷௿ݶͷ #JUDPJO #5$
    
    
    4BUPTIJ
    w /VMM
    %BUB
    5SBOTBDUJPOͷதʹ0QFO
    "TTFUTͷ৘ใ͕ೖ͍ͬͯΔ
24. 0QFO
    "TTFUT
    &YQMPSFS w 0QFO
    "TTFUT͸̍ঝೝܦͳ͍ͱݕࡧͰ͖ͳ͍
    w IUUQTUFTUOFUPBFYQMPSFSDPN
    UFTUOFUͷΈ
    w IUUQTXXXDPJOQSJTNJOGP
    
    
    
    
    
    NBJOOFU
25. %VTU w 0QFO
    "TTFUTΛૹ৴͢Δͷʹඞཁͳ࠷௿ݶͷ #JUDPJO #5$
    
    
    4BUPTIJ
26. "TTFU
    %FpOJUJPOͷ֬ೝ w "TTFU
    %FpOFJUJPO΋ܝࡌ͞Ε͍ͯΔ
27. .BSLFS
    0VUQVUͷத਎ w GDEGEBGGGGFDG CBG
    w G
    0"1ϚʔΧʔʢ̎όΠτৗʹYGʣ
    w 
    7FSTJPOʢ̎όΠτʣ
    w 
    ΞηοτͷΞΠςϜ਺ʢՄม௕੔਺ɿ̍ʙ̕όΠτʣ
    w ΞηοτRVBOUJUZɹ -&#Ͱදݱ ʢՄมʣ
    w ϝλσʔλͷ௕͞ʢՄม௕੔਺ɿ̍ʙ̕όΠτʣ
    w ϝλσʔλʢՄมʣ
28. -&#
    -JUUMF
    &OEJBO
    #BTF w 
    ˣ̎ਐ਺
    w 
    ˣԼͷҐ͔ΒCJUͣͭ۠੾Γɺ಄͸ͰຒΊΔ
    w 
    
    
    
    
    w ˣઌ಄ͷΈ಄ʹ̌Λ͚ͭɺଞ͸಄ʹ̍Λ͚ͭΔ
    w 
    
    
    
    
    
    ˣਐ਺
    w YG
    YE
    YD
    Y
    ˣϦτϧΤϯσΟΞϯ
    w Y
    YD
    YE
    YG
    ʢ࠷ޙҎ֎ͷόΠτ͸಄͕ʙGɺ࠷ޙͷόΠτ͸಄͕ʙʣ
    w DEG
    ʢ%FDPEF͸͜ͷٯΛߦ͏ʣ
29. Մม௕σʔλͷ෼͚ํ w G
    DEGEBGGGGFDG CBG
    w DEG
    Մม௕Ͱͷ෼ׂՕॴ͕Θ͔Δʂ
    EBGGGGFDGCBG
    w όΠτ͋Γɺ࠷ॳͷόΠτͰ۠੾ΔͱY ਐ਺Ͱ ࢒Γ όΠτɹϝλσʔλͷ௕͞͸YͰɺ࢒Γ͸ϝλσʔλ EBGGGGFDGCBG
    w ϝλσʔλ͸ɹVIUUQTHPPHM#%C,+P
    Λ"4$**ม׵ͨ͠΋ͷ
30. ΞηοτͷҠస w ΞηοτҠసͷ3VCZϓϩάϥϜ
    oa_address = 'bWvbGgAtUkxyzY9uUq6PJEBNGQK1wH3Dqt2' asset_id = 'ogCpkuknNNnusz8CN817QNkEezBNAT5qgL' # ૹ෇ઌͷAddress to_oa_address = OpenAssets.address_to_oa_address(‘mgQE57qY9Wg1VC1RLrAZ26iFpyvXiEhB8b') tx = api.send_asset(oa_address, asset_id, 10000000, to_oa_address) w ࣮ߦ݁Ռʢ໭Γ஋ɿτϥϯβΫγϣϯ*%ʣ
    $ ruby send_asset.rb dba232a49167eba5dadf5369d1b1db3e45b2c8810508f773763dc6a238e41173
31. &YQMPSFSͰૹۚΛ֬ೝ w ૹۚͷ֬ೝ
32. Ҡస࣌ͷ.BSLFS
    0VUQVU w ଞऀ΁ͷૹ৴ͱࣗ෼΁ͷ͓௼Γૹ৴Ͱ̎ͭͷ6590͕Ξη οτΛ΋ͭ
    w 01@3&563/
    GBEFGB
    w Gɹɹ0"1ϚʔΧʔͱ7FSTJPOʢݻఆʣ
    w ɹ̎ͭͷ6590͕ΞηοτΛ͍࣋ͬͯΔ
    w BEFGBɹ"TTFU
    2VBOUJUZ
    w ɹ.FUBEBUBͷ௕͞ɹˠɹ.FUBEBUB͸/VMM
33. -&#
    %FDPEF w 
    BE
    F
    
    ʗ
    
    
    G
    BɹˣϏοάΤϯσΟΞϯ
    w 
    F
    BE
    ɹʗɹB
    G
    
    ɹˣ̎ਐ਺
    w 
    
    
    ɹʗ
    w 
    
    
    ɹˣ্ҐCJUআ͘
    w 
    
    
    ɹʗ
    w 
    
    
    ɹˣਐ਺
    w   ɹʗɹ  
34. डऔਓ͕࠶ૹ෇ w ৽඼ΞυϨεͰड͚औΔͳͲ%VTU
    4BUPTIJ͚ͩͩ ͱɺૹ෇͕Ͱ͖ͳ͍
    w ૹ෇͢ΔͨΊʹ͸ɺख਺ྉͱͳΔ#5$͕ඞཁ %VTU
    
    4BUPTIJ ख਺ྉ༻
35. Ξηοτͷম٫ w Ξηοτম٫ͷ3VCZϓϩάϥϜ
    # ઃఆΛ͓ͯ͘͠ oa_address = OpenAssets.address_to_oa_address(‘mstcr1gSQ49ZdCj3VjLZiwFMT3T95eqkov') asset_id = ‘ogCpkuknNNnusz8CN817QNkEezBNAT5qgL' tx = api.burn_asset(oa_address, asset_id) w ࣮ߦ݁Ռ
    $ ruby burn_asset.rb fe4f4538999ebefc579cc79d321e476d8b7bd53bb0ec5f92237e18429f41851d
36. &YQMPSFSͰম٫Λ֬ೝ w %VTUͷ4BUPTIJ͕ख਺ྉ෼ͷ6590ͱ݁߹͞Εɺ#JUDPJOͱͯ͠ૹ෇͞Ε ͍ͯΔ
    w .BSLFS
    0VUQVU͸ͳ͍
37. #JUDPJOΛૹ෇ w 0QFO
    "TTFUT͕ഁյ͞Εͳ͍Α͏#5$ͷΈૹ෇͢Δػೳ
    from = 'mruWvfPAMh7nECKY7FaKXeSxyNZXfw9uFi' to = 'n3J6twDtdGH2F5KUbA8uMXDSogQAmv2YAL' api.send_bitcoin(from, 5000000, to) w ࣮ߦ݁Ռ
    $ ruby send_bitcoin.rb c7ed3e6d46321f249f16d4aca3048ce3f64c163aab1cf3fc9f2163c487f46b0d
38. 04$౦ژʹߦ͜͏ʂ w ݄೔ ۚ ೔ ౔
    04$౦ژ!໌੕େֶ
    w ೔ຊ҉߸௨՟Ϣʔβձ͕ϒʔεग़ల
    w 04$ͱ͍͑͹ɺϥζϕϦʔύΠʂϥζϕϦʔύΠͰ#JUDPJOϊʔυ ಈ͔͢σϞ΍Γ·͢ʂ
    w -JHIUOJOH
    /FUXPSLͷσϞ΋ʂ
39. 04$ηϛφʔ৘ใ w ݄೔ ౔ ʙ
    ೔ຊ҉߸௨՟Ϣʔβձηϛφʔ
    w #JUDPJO
    $PSFͰֶͿϒϩοΫνΣʔϯɾϓϩάϥϛϯάೖ ໳ʢ୲౰ɿখᔹʣ
    w IUUQTXXXPTQOKQPTDTQSJOHNPEVMFT FHVJEFFWFOUQIQ FJE
    w ʙͷ͏ͪͲ͔͜෼ؒ
    ౦ւಓΒ͙-5େձ
    
    
    
    
    
    ϥΠτχϯάωοτϫʔΫɾϥΠτχϯάτʔΫ