Nur besonders vorsichtig sein.. kann mehr Probleme als Ihren Wert. Ich werde wählen Sie einen offline-desktop. :) @HenriqueBarcelos: Um es in einer anderen Formulierung: Die Transaktionen sind nicht geordnet in einer bestimmten Art und Weise in den Blöcken, Sie sind nur eine lineare Liste. Wenn Sie nicht wissen, wo Sie die Transaktion, und haben nur die id, Sie hätte sich auf alle Transaktionen, bis Sie es finden. Auch glaube ich nicht, haben eine international bank account, und der Saldo auf meinem PayPal-Konto ist sozusagen dort stecken, da kann ich es nicht verwenden, für zu viele Dinge (ich zahle Netflix, Spenden einige NRO, kaufen ein paar Sachen aus dem Walmart, wenn ein verwandter reist in die USA, und nicht viel mehr). Ich habe nicht ein passendes Bankkonto zu senden, den Fonds zu und kann nicht senden Sie Sie an ein anderes Konto entweder (ich bin aus Argentinien). Vermutlich ja, Sie verwenden die gleiche Codierung. Eine Geldbörse würde nicht wissen, ob die gleiche Kodierung verwendet; Sie vermuten nur, dass es ist und decodieren die Dinge als solche. Wenn es nicht die gleiche Codierung, dann ist die Dekodierung wird wahrscheinlich fehlschlagen.

Wenn Sie versuchen, zu erklären, Bitcoin zu jedermann, es macht sehr viel Sinn, einfach zu behaupten, dass die Ableitung der private-key > public key - > Adresse deterministisch ist. Allerdings, wenn Sie interessiert sind, schreiben Sie Ihren eigenen code oder das Studium der bestehenden code-Basis, die aus verschiedenen Bibliotheken, die Sie wünschen können, um zu wissen, dass ein privater Schlüssel kann tatsächlich führen zu zwei öffentlichen Schlüsseln (in komprimierter form und ein anderes in unkomprimierter form), die beide Codierungen der gleichen Stelle auf der secp256k1 elliptische Kurve, aber führt zu zwei verschiedenen hash-Werten. Daher haben wir zwei mögliche hash-Werte und jedem hash-Wert kann wiederum führen zu zwei verschiedenen (pay-to-public-key-hash) - Adressen (eine für die wichtigsten bitcoin-Netzwerk und eine für das Test-Netzwerk). Also alles in allem (aus Entwickler-Perspektive statt einer bloßen Benutzer von Bitcoin), einem privaten Schlüssel kann dazu führen, dass 4 mögliche Adressen. Ich lege ein java - snippet:

import java.math.BigInteger;
import org.bitcoinj.core.ECKey;
import org.bitcoinj.core.NetworkParameters;
import org.bitcoinj.core.Adresse;
import org.bitcoinj.params.MainNetParams;
import org.bitcoinj.params.TestNet3Params;

public class Test {

 public static void main(String[] args){

 // Ein Beispiel des privaten Schlüssels aus dem Buch "Mastering Bitcoin'
 String k = "1E99423A4ED27608A15A2616A2B0E9E52CED330AC530EDCC32C8FFC6A526AEDD";

 // Umwandlung unserer string-Codierung als eine tatsächliche Anzahl
 BigInteger priv = new BigInteger(k,16);

 // Erstellen eines key-Objekt aus unserem privaten Schlüssel, mit komprimierten öffentlichen Schlüssel
 ECKey k1 = ECKey.fromPrivate(priv, true);

 // Erstellen eines key-Objekt aus unserem privaten Schlüssel, mit unkomprimierten öffentlichen Schlüssel
 ECKey k2 = ECKey.fromPrivate(priv, false);


 // 03f028892bad7ed57d2fb57bf33081d5cfcf6f9ed3d3d7f159c2e2fff579dc341a
 System.aus.println(k1.getPublicKeyAsHex()); // komprimiert

 // 04f028892bad7ed57d2fb57bf33081d5cfcf6f9ed3d3d7f159c2e2fff579dc341a...
//...07cf33da18bd734c600b96a72bbc4749d5141c90ec8ac328ae52ddfe2e505bdb
 System.aus.println(k2.getPublicKeyAsHex()); // nicht komprimierte

 NetworkParameters main = MainNetParams.get(); // Haupt-bitcoin-Netzwerk
 NetworkParameters test = TestNet3Params.get(); // test bitcoin-Netzwerk

 Adresse addr1 = k1.toAddress(main); // main-Netz, komprimiert
 Adresse addr2 = k1.toAddress(test); // test der Netzwerk -, komprimierte
 Adresse addr3 = k2.toAddress(main); // main-Netz, unkomprimiert
 Adresse addr4 = k2.toAddress(test); // test der Netzwerk -, unkomprimierten

 System.aus.println(addr1.toString()); // 1J7mdg5rbQyUHENYdx39WVWK7fsLpEoXzy
 System.aus.println(addr2.toString()); // mxdivjAqQSQj4LrAMX1XLQidyfU3pCWes7
 System.aus.println(addr3.toString()); // 1424C2F4bC9JidNjjTUZCbUxv6Sa1Mt62x
 System.aus.println(addr4.toString()); // miY1V5L3QDaZVjrMT2Sw2WhHn63GzsNFqb

}
}
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