Lotterie ROI ist consant. Bitcoin-Schwierigkeit ist nicht. Dass 80% Rendite Bitcoin ASIC mining 8% in den nächsten 6 Monaten. Eine persönliche Brieftasche für den gelegentlichen Einsatz. "Woanders" ist außergewöhnlich breit und schlecht definiert. "eine 3rd-party-service" ist eine schlechte Idee, denn das beinhaltet das Vertrauen der 3rd-party, und der ganze block-chain Theorie über das erreichen der Gruppe Konsens, und NICHT Vertrauen eine 3rd-party. Ein weiteres Beispiel ist das BIP 49 P2WPKH-nested-in-P2SH Tilgungen (derzeit von Trezor segwit-fähigen Geräten), d.h. ``OP_0 <HASH160(Pubkey)> `` </HASH160(Pubkey)> Andrew, nicht sicher, was block-explorer ist. Ich sehe die Transaktion auf Blockchain.info/address. Ist das die gleiche wie auf was Sie sich beziehen? Ist es gefährlich für mich den link, so dass Sie möglicherweise in der Lage zu überprüfen, was ich sehe und es korrekt interpretieren zu können? Sorry, ich bin nicht zu savy mit Bitcoin oder meine Electrum wallet. In anderen Worten bin ich in Gefahr, gibt die Empfängeradresse verwendet. Wäre jemand in der Lage zu stören, die mit dieser Transaktion?

Java-code tun, der eingefügt wurde hier, aber meist ohne Erklärung, so werde ich versuchen zu erklären.

Wenn ich war auf der Suche Informationen darüber, das beste Beispiel fand sich in BIP-49 text. Wir beginnen mit der folgenden Zeile:

// Adresse der Ableitung
keyhash = HASH160(account0recvPublickKeyHex) = 0x38971f73930f6c141d977ac4fd4a727c854935b3

Wir haben also 20 Byte public key hash: < keyhash >. Wenn wir wollen, zu erhalten legacy-Schlüssel, den wir einfach prepend < prefixByte > (prefixByte = 0 für BTC main) und get < prefixByte | keyhash > array. Dann sollten wir das tun HASH160(< prefixByte | keyhash >), und nehmen Sie die ersten 4 bytes als Prüfsumme. So wird die resultierende Adresse aussieht < 0 | keyhash | checksum > - 25 bytes insgesamt. Es ist eine Adresse, die in seinem hex-form. Um eine gemeinsame form, die wir sollten nur base58-Kodierung es.

Wenn wir wollen, zu erhalten segwit-Adresse, zuerst wollen wir erhalten < keyhash >. Wir sollten decodieren base58-codiert-Adresse ein < addressArray > und überprüfen Sie die Prüfsumme (die letzten 4 bytes sind gleich HASH160 der erste 21). Wenn alles richtig ist, sollten wir fallen erste und die letzten vier bytes von < addressArray > erhalten Sie ein < keyhash >.

Der nächste Schritt ist, um eine < scriptSig > einfach voranstellen, 0x0014 bytes zu einem < keyhash > array:

scriptSig = < 0 < keyhash > > = 0x001438971f73930f6c141d977ac4fd4a727c854935b3

Wir bekommen segwitBytes hashing < scriptSig >:

segwitBytes = HASH160(scriptSig) = 0x336caa13e08b96080a32b5d818d59b4ab3b36742

Und schließlich haben wir eine Adresse voranstellen p2shHeader (=5 für BTC MainNet, 196 für BTC-Testnet) zu segwitBytes, und fügt Ihre Prüfsumme:

// segwitBytes base58check kodiert für testnet
Adresse = base58check(p2shHeader | segitBytes) = 2Mww8dCYPUpKHofjgcXcBCEGmniw9Coaid2 (testnet)

HASH160 ist folgende: zuerst haben wir die Verwendung von SHA256-Funktion hash und als RIPEMD160 auf das Ergebnis. Das Beispiel in Java implementiert werden kann, findet sich zum Beispiel hier (Funktion org.bitcoinj.core.Utils.sha256hash160).

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