影響時代的參數？

來自官方乙太坊文件：

DAG 每 30000 個塊（一個 100 小時的視窗，稱為一個epoch ）完全不同，並且需要一段時間才能生成。

對於難度低得多的私有區塊鏈也是如此嗎？紀元週期是如何計算的？

紀元時間被硬編碼到乙太坊客戶端中。它不是從任何東西派生的，即不受任何參數的影響。該值代表在乙太坊協議上執行的任何區塊鏈（私有或公共）。

DAG 使用以下參數：

 "n": 4000055296 * 8 // NUM_BITS,  # Size of the dataset (4 Gigabytes); MUST BE MULTIPLE OF 65536
 "n_inc": 65536,                   # Increment in value of n per period; MUST BE MULTIPLE OF 65536
                                   # with epochtime=20000 gives 882 MB growth per year
 "cache_size": 2500,               # Size of the light client's cache (can be chosen by light
                                   # client; not part of the algo spec)
 "diff": 2**14,                    # Difficulty (adjusted during block evaluation)
 "epochtime": 100000,              # Length of an epoch in blocks (how often the dataset is updated)
 "k": 1,                           # Number of parents of a node
 "w": w,                          # Used for modular exponentiation hashing
 "accesses": 200,                  # Number of dataset accesses during hashimoto
 "P": SAFE_PRIME_512               # Safe Prime for hashing and random number generation

對於完整的文件和算法：

https://github.com/ethereum/wiki/blob/master/Dagger-Hashimoto.md

引用自：https://ethereum.stackexchange.com/questions/6850