Ok. Así que una parte del problema con la creación de este servicio, es que el servicio podría haber recibido el doble pasar (visto desde el comerciante del punto de vista) y rechazó la transacción en la que el comerciante ha aceptado. Pero lo que si que reestructurar nuestro hipotético servicio web (que informa acerca de la doble pasa), por lo que el comerciante incluye la transacción (codificado en base64, por ejemplo) en una petición POST a la web del servicio? Sería este trabajo entonces? "Son conscientes de que cualquier transacción que intente pasar las mismas entradas como esta transacción no?" sería entonces la pregunta. también la api devuelve la cuota de las tasas. "... se entregó algo de valor a cambio de un pago con bitcoin no hay confirmaciones." Los clientes antiguos pueden validar las transacciones con comprimidos de claves públicas porque Bitcoin envía claves públicas de OpenSSL sin comprobar su formato y OpenSSL procesa automáticamente la clave pública de acuerdo con el byte inicial (0x04 para comprimir, 0x02/0x03 por comprimido).

Esto es un poco de una generalización, ya que la rentabilidad de la minería es diferente para diferentes personas en función de sus ventajas comparativas.

Pero la rentabilidad de la minería de datos se ve afectada por la dificultad, que a su vez está determinado por el total de hashrate de todos los mineros. Si en cualquier momento la rentabilidad es demasiado alto, esto atraerá a más mineros provocando que la rentabilidad disminuya. Si es negativo, se hará mineros para dejar de fumar, el aumento de la rentabilidad. El resultado es que habrá muy pocas oportunidades sin explotar para beneficio de la minería.

Tenga en cuenta que la rentabilidad es sólo cerca de 0 si todos los costos son considerados de hardware, electricidad, espacio, mantenimiento, riesgo y así sucesivamente. Cada potencial minero tendrá su propio costo/beneficio el análisis.

La causalidad en su cita es a la inversa - si bitcoins valen más, será más difícil que la mía. (Al menos, si ignoramos el efecto de la generación de recompensa reducir a la mitad.)

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