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
|
$0.00449 | -0.82% | $84.05 | $159.57万 | |
| 2 |
 AionAION
|
$0.0 | 0% | $0 | $0.0 | |
| 3 |
 BEAMBEAM
|
$0.006617 | -0.82% | $5.45万 | $78.62万 | |
| 4 |
 比特币BTC
|
$77,578.01 | +0.74% | $103.86亿 | $1.56万亿 | |
| 5 |
 比特现金BCH
|
$274.63 | -0.42% | $4.15亿 | $55.10亿 | |
| 6 |
 比特币SVBSV
|
$16.9223 | +1.85% | $516.19万 | $3.39亿 | |
| 7 |
 比特币钻石BCD
|
$0.0 | 0% | $0 | $0.0 | |
| 8 |
 达世币DASH
|
$46.1288 | -0.09% | $1,726.05万 | $5.89亿 | |
| 9 |
 DecredDCR
|
$12.8476 | -0.93% | $114.01万 | $2.23亿 | |
| 10 |
 极特币DGB
|
$0.003135 | -2.15% | $285.78万 | $4,882.82万 | |
| 11 |
 亦来云ELA
|
$0.5043 | -22.75% | $355.02万 | $1,026.09万 | |
| 12 |
 以太坊ETH
|
$2,290.19 | +1.68% | $39.80亿 | $2,795.58亿 | |
| 13 |
 以太经典ETC
|
$7.059 | +1.51% | $1,410.64万 | $11.12亿 | |
| 14 |
 古灵币GRIN
|
$0.0138 | +19.07% | $1.17万 | $233.96万 | |
| 15 |
 GroestlcoinGRS
|
$0.0 | 0% | $0 | $0.0 | |
| 16 |
 GUNZGUN
|
$0.001944 | -0.87% | $265.22万 | $117.51万 | |
| 17 |
 HyperCashHC
|
$0.0 | 0% | $0 | $0.0 | |
| 18 |
 莱特币LTC
|
$54.2367 | +0.49% | $1.22亿 | $41.99亿 | |
| 19 |
 门罗币XMR
|
$633.98 | +5.17% | $1.63亿 | $119.07亿 | |
| 20 |
 门罗经典XMC
|
$0.0 | 0% | $0 | $0.0 | |
| 21 |
 字节元CKB
|
$0.001163 | -0.77% | $83.85万 | $5,106.21万 | |
| 22 |
 质数币XPM
|
$0.0 | 0% | $0 | $0.0 | |
| 23 |
 RavencoinRVN
|
$0.001344 | +3.31% | $142.17万 | $1,633.87万 | |
| 24 |
 云储币SC
|
$0.000708 | -1.32% | $233.08万 | $3,663.73万 | |
| 25 |
 大零币ZEC
|
$1,208.84 | +4.38% | $11.18亿 | $202.87亿 | |
| 26 |
 HorizenZEN
|
$5.2183 | +2.31% | $375.05万 | $6,637.54万 |
