PoW（Proof of Work，工作量证明）是区块链领域最早且最具代表性的共识机制之一，其基本思想是通过竞争完成一个有难度的任务来决定区块记账权。任务的设计原则为：计算答案极其困难（需要大量算力和时间），但一旦得知答案，验证其正确性却非常简单且迅速。网络可根据整体算力动态调整难度，确保出块时间相对稳定。最早由中本聪于2008年在比特币白皮书中提出，并在2009年比特币主网上线时正式采用，以消耗大量算力竞争出块为主要特征。PoW机制以其去中心化程度高、安全性强、不易被攻击等优势，被比特币、莱特币、以太坊经典（ETHW）、门罗币（XMR）、狗狗币（DOGE）等众多主流加密货币广泛采用，是区块链发展史上最基础、最成熟、经过最多实战检验的共识机制。
| # | 名称 | 价格 | 24h涨跌 | 24h 成交额 | 市值 | 7日走势 |
|---|---|---|---|---|---|---|
| 1 |
 阿姨币AE
|
$0.004366 | -2.67% | $189.02 | $155.17万 | |
| 2 |
 AionAION
|
$0.0 | 0% | $0 | $0.0 | |
| 3 |
 BEAMBEAM
|
$0.006557 | -1.29% | $5.48万 | $77.91万 | |
| 4 |
 比特币BTC
|
$78,466.42 | +1.91% | $120.20亿 | $1.58万亿 | |
| 5 |
 比特现金BCH
|
$275.66 | -0.61% | $3.48亿 | $55.31亿 | |
| 6 |
 比特币SVBSV
|
$16.835 | +1.5% | $579.92万 | $3.37亿 | |
| 7 |
 比特币钻石BCD
|
$0.0 | 0% | $0 | $0.0 | |
| 8 |
 达世币DASH
|
$47.2676 | +2.95% | $2,355.84万 | $6.04亿 | |
| 9 |
 DecredDCR
|
$12.8741 | +0.92% | $191.05万 | $2.23亿 | |
| 10 |
 极特币DGB
|
$0.003154 | +0.16% | $302.27万 | $4,912.41万 | |
| 11 |
 亦来云ELA
|
$0.4482 | -36.34% | $151.94万 | $911.95万 | |
| 12 |
 以太坊ETH
|
$2,323.24 | +2.51% | $49.39亿 | $2,835.92亿 | |
| 13 |
 以太经典ETC
|
$7.1518 | +2.71% | $1,573.93万 | $11.27亿 | |
| 14 |
 古灵币GRIN
|
$0.0119 | +0.25% | $1.18万 | $201.07万 | |
| 15 |
 GroestlcoinGRS
|
$0.0 | 0% | $0 | $0.0 | |
| 16 |
 GUNZGUN
|
$0.00194 | +0.57% | $239.90万 | $117.27万 | |
| 17 |
 HyperCashHC
|
$0.0 | 0% | $0 | $0.0 | |
| 18 |
 莱特币LTC
|
$54.7493 | +1.16% | $1.38亿 | $42.38亿 | |
| 19 |
 门罗币XMR
|
$638.00 | +2.03% | $1.74亿 | $119.82亿 | |
| 20 |
 门罗经典XMC
|
$0.0 | 0% | $0 | $0.0 | |
| 21 |
 字节元CKB
|
$0.001172 | +1.56% | $87.35万 | $5,145.73万 | |
| 22 |
 质数币XPM
|
$0.0 | 0% | $0 | $0.0 | |
| 23 |
 RavencoinRVN
|
$0.001339 | +1.36% | $130.63万 | $1,627.80万 | |
| 24 |
 云储币SC
|
$0.000712 | +0.19% | $262.72万 | $3,684.43万 | |
| 25 |
 大零币ZEC
|
$1,282.76 | +11.79% | $13.70亿 | $215.27亿 | |
| 26 |
 HorizenZEN
|
$5.3266 | +4.13% | $486.54万 | $6,775.29万 |
