Gracias por el enlace a Cambio. Yo era consciente de ello, pero el enlace que se proporciona una mejor explicación. Si todas las entradas son sumados, asumimos que todas las entradas son de la misma el titular de la cuenta/de la entidad? ok , entonces, ¿cómo el blockchain-explorador de sitios web de visualización de los bloques de datos ? Gracias por que, se puede ver si había una tarifa adecuada que se le atribuye? Soy propenso a ver que sentarse para siempre? ¿Cómo te imaginas el cumplimiento de un requisito para la retransmisión de las transacciones? Ya la tengo, pero te lo agradezco! El amor de tu YouTube, por el camino!

Mientras tanto la competencia de la cadena-consejos de cumplir con las mismas reglas, la cadena con la mayoría de los agregados de dificultad ("más pesado") va a ganar, independientemente de la altura. Los nodos de realizar la primera sincronización automáticamente terminan en la cadena más pesada comparando el total de la dificultad de la cadena-consejos ofrecidos por sus compañeros debido a los encabezados de la primera sincronización.
Sin embargo, la poda de Bitcoin Core nodos que ya están en sincronía con el "más claro" de la cadena no sería capaz de reorganizar a los más pesados si dejan de mantener todos los bloques hasta el ancestro común de las dos cadenas. En su lugar, una poda nodo tiene para sincronizar de nuevo desde cero.

Si un atacante controlado hashrate equivalente al 100% de la SHA-256d hashpower que hoy día ser capaz de reconstruir una blockchain de la misma agregado dificultad como Bitcoin en aproximadamente 186 días.

El punto de control del sistema está en desuso (ver, por ejemplo, este GitHub-debate), en lugar de las nuevas versiones de Bitcoin Core desde 0.14.0 por defecto, utilice un supuesto válido de bloque. El rendimiento de la sincronización inicial es por medio de la presente mejorado por el mismo mecanismo que los puntos de comprobación se utiliza: a la altura de la assumevalid bloque de la comprobación de secuencias de comandos/firmas se omite, sólo bloque de validez se comprueba, la UTXO Conjunto está poblada, y los datos sobre las transacciones que se refieren a la del nodo de la cartera se recoge.

La ventaja de assumevalid sobre los puestos de control, es que no fuerza el nodo en un predefinidos de la cadena. El usuario puede elegir otro bloque o desactivar la función por completo en la configuración de su nodo. Bitcoin Core por defecto usa un blockheight que precede a la liberación por varias semanas.

Como tal, la defensa contra este tipo de ataque podría ser colectivamente de acuerdo a sincronizar con assumevalid conjunto de cualquier bloque después de que el atacante de la cadena de bifurcada off.

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