Mastering the Lightning Network 第1章を読む補足資料

by Shu Kobuchi

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.BTUFSJOHUIF-JHIUOJOH/FUXPSL ΛಡΉୈষ ೥݄೔ ۚ !ϏοτίΠϯͱ͔ษڧձ ೔ຊ҉߸௨՟Ϣʔβձɹখᔹप 4IV,PCVDIJ

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ࣗݾ঺հ খᔹपɹ4IV,PCVDIJɹ!TIV@LPCTIVLPCVDIJ γεςϜ։ൃΛ͖ͯͨ͠தͰɺ   ೥࢓ࣄʹͯ#JUDPJO8FC8BMMFUϓϩτλΠϓͷ։ൃʹैࣄ Ծ૝௨՟औҾॴ޲͚΢ΥϨοτϕϯμʔϑϨηοπͰ։ൃɾӡ༻ ʙϏοτόϯΫͷΤϯδχΞ ೔ຊ҉߸௨՟Ϣʔβձ͸೥͔ΒࢀՃ͠ɺӡӦΛ຿ΊΔ झຯɿమಓɺञɺΧϥΦέ   ϏοτίΠϯܾࡁͰञΛҿΉ͜ͱ ࣸਅ͸-JHIUOJOH/FUXPSL࢈Έͷ਌   5IBEEFVT%SZKB 5BEHF ͱ   ೥݄4DBMJOH#JUDPJO!౦ژʹͯ 2

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ॻ੶ ݱࡏɺӳޠݪஶͷΈ IUUQTHJUIVCDPNMOCPPLMOCPPLʹͯແྉͰಡΊΔ "NB[POʹͯ,JOEMF൛ ϖʔύʔόοΫ൛ߪೖՄೳ 3

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ϥΠηϯεʹ͍ͭͯ஫ҙʢ຋༁ͳͲʣ IUUQTHJUIVCDPNMOCPPLMOCPPLTPVSDFBOEMJDFOTF ΫϦΤΠςΟϒɾίϞϯζ$$#:/$/%ϥΠηϯε ݸਓར༻ʹݶΓιʔείʔυͷڞ༗Մೳ ঎ۀతʹ഑෍ෆՄೳ ݱࡏ͸ೋ࣍తஶ࡞෺΍Ӧར໨తͷஶ࡞෺͸ڐՄ͞Ε͍ͯͳ͍ ग़൛ࣾ0`3FJMMZ.FEJBͷڐՄͳ͠ʹ຋༁Λͯ͠͸͍͚ͳ͍ ຋༁ɺೋ࣍తஶ࡞෺΍Ӧར໨తͷ1%'΍)5.-ͳͲ഑෍ېࢭ ग़൛ޙͷ೥ޙ ೥݄ ʹ$$#:4"ϥΠηϯεͰެ։ ϘϥϯςΟΞ຋༁ऀͷͨΊʹ5SBOTJGFYϓϩδΣΫτΛఏڙ 1%'΍ͦͷଞͷిࢠॻ੶൛ͷ࡞੒ͱڞ༗ΛڐՄ 4

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*OUSPEVDUJPOิ଍ࢿྉ

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جૅ஌ࣝ ෇࿥ IUUQTHJUIVCDPNMOCPPLMOCPPLCMPCEFWFMPQ BQQFOEJY@CJUDPJO@GVOEBNFOUBMT@SFWJFXBTDJJEPD .BTUFSJOH#JUDPJOOE&EJUJPO IUUQTHJUIVCDPNCJUDPJOCPPLCJUDPJOCPPL OE&EJUJPO͸4FHXJU΍1BZNFOU$IBOOFMͳͲ͕Ճච͞Ε͍ͯΔ ϚελϦϯάɾϏοτίΠϯʢTU&EJUJPOͷ࿨༁ʣ IUUQTCJUDPJOCPPLJOGPXQDPOUFOUUSBOTMBUJPOTKBCPPLQEG 6

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ϏοτίΠϯͷ11ωοτϫʔΫͰͷసૹ ࡞੒ͨ͠τϥϯβΫγϣϯΛϏοτίΠϯ11ωοτϫʔΫʹϒϩʔυΩϟε τ ఻೻ ͢Δ ϊʔυ͸59ͷܗࣜΛνΣοΫ͠ɺϏοτίΠϯͷܗࣜͱͯ͠ਖ਼͚͠Ε͹ɺ ྡͷϊʔυʹసૹ͍ͯ͘͠ શͯͷϊʔυ͕ಉ͡59Λ࣋ͭ   ʢશੈքͷϊʔυʹߦ͖౉Δʣ 7 ΞϦε Ϙϒ 59 ఻೻ 59 59 59 సૹ సૹ 59 59 59 సૹ సૹ సૹ సૹ స ૹ

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ϥΠτχϯάωοτϫʔΫͰͷϧʔςΟϯά શϊʔυͰࢧ෷͍σʔλΛڞ༗ͤͣɺ్தܦ࿏ͷΈอ༗ 8 ΞϦε Ϙϒ

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ΞϦε͕Ϙϒʹ#5$ΛૹΔ Ҏલड͚औֹ͍ͬͯͨΛ߹ࢉͯ͠ɺ૬खʹૹΓɺ͓௼Γ͸ࣗ෼΁ 59தʹهࡌͷͳֹ͍ ͜͜Ͱ͸#5$ ͸ޙʹϚΠφʔ΁ τϥϯβΫγϣϯ5SBOTBDUJPO59 9 ΞϦε Ϙϒ 5SBOTBDUJPO 59 */165 065165 ΞϦε νϟϯ ΞϦεˠϘϒ #5$ νϟϯˠΞϦε #5$ ΞϦεˠΞϦε ͓௼Γ #5$ #5$ σΟφˠΞϦε #5$ #5$ σΟφ ܭ#5$ ܭ#5$ ϚΠφʔ ωοτϫʔΫख਺ྉ #5$ ˞59ʹهࡌ͸ͳ͍ ൿີ伴Λࠩ͠ࠐΜͰ ϩοΫղআɿిࢠॺ໊ ΞϦεͷ ൿີ伴 ΞϦεͷ ൿີ伴 ΞϦεͷ ެ։伴 Ϙϒͷ ެ։伴 ΞϦεͷ ެ։伴 ΞϦεͷ ެ։伴

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ΦϯνΣʔϯεέʔϦϯά ೥݄೔ʹ#JUDPJO͔Β#JUDPJO$BTI͕ϋʔυϑΥʔΫ #JUDPJO$BTI͸ϒϩοΫαΠζΛ.#͔Β.#ʹҾ্͖͛ ݱࡏ͸.# ϏοάϒϩοΫͱ͍͏ߟ͑ 10 #JUDPJO #JUDPJO $BTI

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ΦϑνΣʔϯεέʔϦϯά ϒϩοΫνΣʔϯ֎Ͱෳ਺ճͷऔҾͷ݁ՌͷΈΛॻ͘ τϥϯβΫγϣϯͷૹ෇ΛݮΒ͢ ෳ਺ͷΞϓϩʔν αΠυνΣʔϯ w %#Ͱ΋ࢴͰ΋Α͍ OE-BZFSʢ#JUDPJOͷ৔߹͸-JHIUOJOH/FUXPSLʣ 11 ΞϦε Ϙϒ #5$Λ σϙδοτ ΞϦε Ϙϒ #5$ ˠ#5$ ࠷ऴ݁ՌͰ ਫ਼ࢉ #5$

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ϋογϡؔ਺ Մม௕ͷೖྗ஋ʹର͠ɺݻఆ௕ͷग़ྗ஋Λฦ͢ ཚ਺Ͱ͸ͳ͍ͷͰɺಉ͡ೖྗ஋͔Β͸ৗʹಉ͡ग़ྗ஋ΛಘΔ ग़ྗ஋͔Βೖྗ஋Λਪଌ͢Δͷ͸΄΅ෆՄೳ IUUQTXXXNPWBCMFUZQFDPVLTDSJQUTTIBIUNM   IUUQTHPPHM1PHF# 12 ೖྗ͸Մม௕ PQFOTPVSDF ग़ྗ͸ݻఆ௕ PQFOTPVSDJ CFBCCGCEBDFF DDCFBCBCCDDFCGDG CBEBEFBGCEC DBFDBEGDGFFB 4)" ϋογϡؔ਺ 4)" ϋογϡؔ਺ Ұจࣈ ม͑Δ શ͘ҟͳΔ ஋ʹ

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-JHIUOJOHͷνϟϯωϧ γϯϓϧʹऀؒ γϯάϧϗοϓ ͚ͩͷϚΠΫϩϖΠϝϯτΛߟ͑Δ 13 ΞϦε Ϙϒ ΞϦεͷެ։伴 Ϙϒͷެ։伴 PGެ։伴 ΦϯνΣʔϯ ᶃ'VOE5Y ࢿۚΛϩοΫ ΦϑνΣʔϯ ᶄ*OWPJDFൃߦ ᶅ1BZ ᶆ*OWPJDFൃߦ ࠷ॳͷϩοΫ࣌఺Ͱ͸ ΞϦε͕શֹ࢖͑Δ ᶇ1BZ ΦϑνΣʔϯ

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-JHIUOJOHͷνϟϯωϧ ΞϦεɾϘϒؒͷνϟϯωϧͷΩϟύγςΟ͸#5$ 14 ΞϦε Ϙϒ ΦϯνΣʔϯ ᶃ'VOE$IBOOFM ΦϑνΣʔϯ ᶄ*OWPJDFൃߦ ᶅ1BZ ᶆ*OWPJDFൃߦ ᶇ1BZ ΦϑνΣʔϯ #5$ ΞϦε Ϙϒ ᶃޙ ᶅޙ ᶇޙ ᶈ࠷ऴ࢒ߴ #5$ #5$ ΦϯνΣʔϯ #5$ #5$ ᶈ$MPTF PGެ։伴