Спасибо, значит даже с использованием протокола BGP маршрутизации` злоумышленник не сможет удержать блок только для подмножества сети? Спасибо @асами вы обратитесь к БТЦ. С ЕТН ситуация немного лучше сейчас. Можете ли вы объяснить, как работает блокчейн и преимущества его? Потому что, если вы могли бы обернуть их головы вокруг, что было бы выгоднее. Пожалуйста, укажите страну, если вы спрашиваете о налогах. Тридцать тысяч лет. Это не шутка, это реальное время. (Я не нашел статистики хэшрейт для этой карты, но я очень оптимистически предполагая одного гигахеша в секунду.) Как говорит Андрей, вы не можете эффективно майнить с помощью процессора или GPU. Хотя это было не спросил, я бы добавил, что DoS-атаки в результате наводнения htlcs вполне возможны, особенно при правильном

Вам не нужен доступ к предыдущей операции, чтобы найти ввода адреса.

Сделки b0dd3d915a568c9d48e37b3fbfca58ae3276a5dba176fdf30f18af794310cc02 является segwit сделки. И он содержит несколько подписей, так это multisig транзакции. Формально это называется P2SH-P2WSH сделки.

Есть два входа транзакции, которые тратятся в этой сделке. Каждой операцией ввода есть поле свидетелем. Каждое поле свидетелем содержит четыре элемента, фиктивное поле (потому что у биткоина есть некоторые устаревшие вопросы), два поля для подписи, и одного свидетеля скрипт, который содержит открытые ключи, которые используются, чтобы проверить, если предусмотрено подписи являются действительными.

Эти два элемента поля свидетеля (свидетель скрипты) выглядеть так:

52
21
0274ecb4e28e6b7be314d844bb7561b605d537106f7f5c3eaba31a8cd3dd0097c8
21
0343ed9c58350b4013b3c9a02da2148d59e8109a90f0fa0ea77d31b8570990d463
52
АЭ

и

52
21
03838edaeadeed0e9f660e725970787b69ad4926afe1f19626d5476d356cb3b472
21
03c37f3b264f674c6c2e273e06da7fb7fe720be6828f251c71d0cb10e349d0222d
52
АЭ

Каждый сценарий Свидетель имеет соответствующий адрес. Эти адреса мы ищем, входные адреса. Чтобы получить этот адрес, мы следовать рецепту описанному на биткоин ядра обособляется свидетель бумажник развития руководство. В основном, это говорит

redeemScript = "0020" + SHA256 и(witnessScript);
адрес = base58Enc("05" + RipeMD160(и SHA256(redeemScript)));

Который дает два ввода адреса, 38Rgbmaxitveg1S8UNbWjwV5UMoBt3Ptng и 3Bx1UMJieKFngvBA8m2VqE6s4wXYKWzhkp.

Следует отметить, что этот вывод был сделан гораздо более осложняется тем, что это была сделка multisig и segwit. В более обычный операции, как a4453c9e224a0927f2909e49e3a97b31b5aa74a42d99de8cfcdaf293cb2ecbb7 вы можете просто найти открытые ключи адрес и вычисления адресов, соответствующих открытых ключей:

Base58Enc(00 + RipeMD160(и SHA256(0x029774feb36d1af279b42a6414e9a702c5e451397671554792c00e5f14bcbce292))) = 1KuK7vSWJCKcidp6WU1Cj3csxKoeTiYYcs 
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