Hi-Ether Meetup Block#0 LTトークン運用の三要素(発行・移転・焼却)

2018年2月2日Hi-Ether Meetup Block#0での「トークン運用の三要素(発行・移転・焼却)」のLT資料です。

Transcript

1. )J&UIFS
   .FFUVQ
   #MPDL
   -5
   τʔΫϯӡ༻ͷࡾཁૉ
   ʢൃߦɾҠసɾফ٫ʣ 
   খᔹ
   पʢ4IV
   ,PCVDIJʣ
2. ࣗݾ঺հ w খᔹ
   प 4IV
   ,PCVDIJ
   w ೥ྸɿY'ࡀʢࠓ೥ͰYࡀʂʂʣ
   w ࠷ऴֶྺɿϒϩοΫνΣʔϯେֶߍΤϯδχΞ ϒϩϯζίʔε ̐ظੜ
   w ΩϡʔϒγεςϜ
   ͷاը෦໳
 ɹɾϒϩοΫνΣʔϯਪਐڠձ #$$$ ձһ
 ɹɹɹԾ૝௨՟;&/ࣾձ࣮ݧʹࢀՃ
 ɹɾϒϩοΫνΣʔϯϋϒίʔϙϨʔτձһ
 ɹɾϏϤϯυϒϩοΫνΣʔϯਖ਼ձһ
3. ൃߦͱҠస w ൃߦͱҠస͸ඞਢػೳ
   w 0QFO;FQQFMJOͷ#BTJD5PLFOTPMΛࠓճͷखຊʹ
 IUUQTHJUIVCDPN0QFO;FQQFMJO[FQQFMJOTPMJEJUZ CMPCNBTUFSDPOUSBDUTUPLFO&3$ #BTJD5PLFOTPM
4. ফ٫ʢম٫ʣ w ফ٫͕ඞཁͳ͜ͱ΋͋Δ
   w 0QFO;FQQFMJOͷ#VSOBCMF5PLFOTPMΛࠓճͷखຊʹ
 #VSOBCMF5PLFOΛ#BTJD5PLFOʹΫϥεܧঝͤ͞Δ
 IUUQTHJUIVCDPN0QFO;FQQFMJO[FQQFMJOTPMJEJUZ CMPCNBTUFSDPOUSBDUTUPLFO&3$ #VSOBCMF5PLFOTPM
5. ίʔυྫ pragma solidity ^0.4.18; library SafeMath { … } contract BasicToken { … } contract BurnableToken is BasicToken { event Burn(address indexed burner, uint256 value); function burn(uint256 _value) public { require(_value <= balances[msg.sender]); address burner = msg.sender; balances[burner] = balances[burner].sub(_value); totalSupply = totalSupply.sub(_value); Burn(burner, _value); } }
6. #VSOલ
7. #VSOޙ
8. ফ٫Λ͢Δҙຯ w ᶃൃߦऀʹ໭͖ͬͯͨ࠴݊Λ࢖༻ࡁΈʹ͢Δ
   w ᶄଞϓϥοτϑΥʔϜ΁ͷՁ஋ͷҠస
 ɹ୯ํ޲ʢෆՄٯʣͷ৔߹͸ʮ1SPPG
   PG
   #VSOʯ
9. ᶃ࠴ݖΛ࢖༻ࡁΈʹ͢ Δ
10. ωΠςΟϒ௨՟ʹ͸ൃߦओମ ͕ͳ͍ w &5)΍#5$ͳͲωΠςΟϒ௨՟ʹ͸ൃߦओମ͕ͳ͍
    w ࠴ݖ࠴຿ؔ܎ΛఆٛͰ͖ͳ͍ ϚΠφʔใुͰ৽نੜ੒
    ૹۚऀͷిࢠॺ໊͕ͳ͍ YFDBCF BGCDCG YBE FFDG 59  3FXBSE ૹۚΞΧ΢ϯτͷిࢠॺ໊ΛؚΉ  YCDEE CEDFB #MPDL
11. ಠࣗτʔΫϯͷൃߦओମ w ಠࣗτʔΫϯʹ͸ൃߦओମ͕ଘࡏ͢Δ
    w ࠴ݖ࠴຿ؔ܎ΛఆٛͰ͖Δ 59 ൃߦ࣌ʹൃߦΞΧ΢ϯτͷ
    ిࢠॺ໊ΛؚΉ Y⒎CBFG CGFFF CEEF $SFBUF
    $POUSBDU 
12. ಠࣗτʔΫϯ͸࠴݊ w ࢠڙͷ͓ख఻͍݊ɾݞୟ͖݊͸࿑ಇ͢Δ͜ͱΛ໿ଋ͍ͯ͠ ͯɺࣗ෼ʹ͸ෛͷՁ஋
    w اۀϙΠϯτ͸ෛ࠴ܭ্
    w ೔ຊۜߦ݊͸೔ຊۜߦͰෛ࠴ܭ্ʢଞࠃͷதԝۜߦ΋ෛ ࠴ܭ্͕Ұൠతʣ
13. ࠴͕݊໭͖ͬͯͨΒ#VSO w ൃߦऀͷखݩʹ໭͖ͬͯͨΒ#VSO
    w ࢴͰͷྫʣ
 ίϯαʔτνέοτͷ൒݊Λ੾Γ཭͢
 ྻंͷݕࡳͰ੾ූʹԡҹɾύϯν݀
 ੾खͷফҹ
14. εϚʔτίϯτϥΫτ
    ͰͷΠϝʔδ ᶄ
    &5)ૹۚ τʔΫϯൃߦऀ
    ʢαʔϏεఏڙऀʣ ᶃίϯτϥΫτσϓϩΠ
    ʢτʔΫϯఆٛʣ ᶄ
    τʔΫϯൃߦ ᶄ
    τʔΫϯૹ৴ ᶅ
    τʔΫϯૹ৴ ᶅ
    αʔϏεఏڙ ᶅ
    τʔΫϯফ٫
15. ᶄଞϓϥοτϑΥʔϜ ΁ͷՁ஋Ҡస
16. ҟͳΔϓϥοτϑΥʔϜؒͰ ͷՁ஋ͷҠస w #$$$Ծ૝௨՟ʮ;FOʯࣾձ࣮ݧୈ̍ϑΣʔζϨϙʔτ
 IUUQCDDDHMPCBMKBBSUJDMFTIUNM
17. 1SPPG
    PG
    #VSOʢ୯ํ޲ʣ w $PVOUFS
    1BSUZ 9$1 ൃߦͰ1SPPG
    PG
    #VSOͳͲ
 ˞9$1͸ΦϯνΣʔϯʹ৐Δ ΦϯνΣʔϯ
    ʢϒϩοΫνΣʔϯʣ τʔΫϯ ϖά τʔΫϯൃੜ ফ٫
    1SPPG
    PG
    #VSO ΦϑνΣʔϯͳͲ
18. ΦϑνΣʔϯͰͷ߆ଋ w ϥΠτχϯάωοτϫʔΫ͸ΦϯνΣʔϯ্ͰίΠϯΛϩ οΫʢ߆ଋʣ
    w ૒ํ޲ϖάαΠυνΣʔϯ΋ΦϯνΣʔϯͰίΠϯΛϩο Ϋ ΦϯνΣʔϯ
    ʢϒϩοΫνΣʔϯʣ τʔΫϯ ϖά τʔΫϯൃੜ ߆ଋ ߆ଋղআ ফ٫ ϖά ΦϑνΣʔϯ
19. ͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ w
    !TIV@LPC
    w
    TIVLPCVDIJ
    w  ۚ  ౔
    04$౦ژ!໌੕େֶ
    w ೔ຊ҉߸௨՟Ϣʔβձग़లʂ
    w  ೔ 
    ηϛφʔ
    ʮ#JUDPJO
    $PSFೖ໳ʯɹ୲౰ɿখᔹ
    w IUUQTXXXPTQOKQPTDTQSJOHNPEVMFTFHVJEFFWFOUQIQ FJE