Project PAI 混合共识与Decred (DCR)的共识机制比较研究

最近，Project PAI区块链已经升级到了新的基于PoW / PoS的混合共识机制，PAI的混合共识机制受到了Decred (DCR) 团队工作的启发。本文，我们将比较说明Project PAI和Decred共识机制的异同。

Coinbase

PAI

Decred

总代币供应量

2.1B PAI

21M DCR

代币可分性

是（9位小数）

有（9位小数）

市场流通供应量

1.496B PAI

12.454M DCR

共识算法

PAI

Decred

区块成熟

100个区块数

256个区块数

块查找目标

10分钟

5分钟

权益凭证成熟区块数

256个区块数

256个区块数

权益凭证(SV)池目标

40,960张凭证

40,960张凭证

权益凭证到期

40,960个区块

40,960个区块

单区块最多新凭证数

20

20

采矿

PAI

Decred

公共采矿

是

是

PoW哈希算法

SHA-3 / SHAKE-256

BLAKE-256

ASIC可用性

不可用

可用

PoW奖励比例

40％

60％

PoS奖励比例

60％

30％

项目补贴

0％

10％出块奖励补贴项目金库

端口信息

PAI（主网）

PAI（测试网）

Decred(主网)

递减(测试网)

守护程序P2P端口

8567

18567

9108

19108

Daemon RPC端口

8566

18566

9109

19109

钱包RPC端口

8566（paicoind的一部分）

18566（paicoind的一部分）

9110（单独的/ dcrwallet）

19110（单独的/ dcrwallet）

总结

我们希望通过本文比较Project PAI和Decred的共识机制，以便帮助您更好地了解Project PAI的区块链技术。

此外，PAI核心团队正在开发基于有用工作量证明的混合共识机制（PoUW），我们即将公布PoUW的最新发展路线图。相关信息请您查阅Project PAI 有用工作量证明 (PoUW) 的进展。

PoUW的目的在于使用AI的计算来替代传统的PoW哈希运算，使得在区块链上的算力能够用于实际的AI应用，让这些算力变得”有用”。未来，这些算力不仅可以用于机器学习训练，还可以拓展到通用的链上计算，如链上数据分析、基于密码学的链上隐私计算（如零知识证明、多方安全计算）等。

您也可以通过Project PAI每周的项目进度周报查看PAI区块链技术的最新进展，每周的周报将会提供最及时的信息，感谢您的支持！

Project PAI Hybrid Consensus Comparison to Decred (DCR)

Summary

The Project PAI Blockchain recently forked to a new PoW/PoS Hybrid that was greatly inspired by the work of the Decred team. This document attempts to lay out the similarities and differences between the two implementations.

Coinbase

PAI

Decred

Total Coin Supply

2.1B PAI

21M DCR

Divisible

Yes (9 decimal places)

Yes (9 decimal places)

Circulating Supply

1.496B PAI

12.454M DCR

Consensus

PAI

Decred

Block Maturity

100 Confirmations

256 confirmations

Block Find Target

10 Minutes

5 Minutes

Stake Voucher Maturity

256 blocks

256 blocks

Stake Voucher Pool Target

40,960 vouchers

40,960 vouchers

Stake Voucher Expiry

40,960 blocks

40,960 blocks

Max Fresh Vouchers per Block

20

20

Mining

PAI

Decred

Public Mining

Yes

Yes

PoW Hashing Algorithm

SHA-3/SHAKE-256

BLAKE-256

ASIC Availability

Not Available

Available

PoW Block Subsidy

40%

60%

PoS Block Subsidy

60%

30%

Project Subsidy

0%

10% — Decred Treasury

Port Details

PAI (Mainnet)

PAI (Testnet)

Decred (Mainnet)

Decred (Testnet)

Daemon P2P Port

8567

18567

9108

19108

Daemon RPC Port

8566

18566

9109

19109

Wallet RPC Port

8566 (Part of paicoind)

18566 (Part of paicoind)

9110 (Separate/dcrwallet)

19110 (Separate/dcrwallet)

Conclusion

We hope that this comparison between Decred and PAI will help you better understand Project PAI’s innovative technology.

In addition, Project PAI core team is developing a hybrid consensus mechanism (PoUW) based on Proof of Useful Work (PoUW). For relevant information, please refer to the latest development of Project PAI’s proof of useful work (PoUW).

The purpose of PoUW is to use AI calculations to replace traditional PoW hashing operations, so that the computing power on the blockchain can be used for actual AI applications, making these computing powers “useful”. In the future, these computing powers can not only be used for machine learning training, but can also be extended to general-purpose on-chain computations, such as on-chain data analysis, cryptographic-based on-chain privacy computations (such as zero-knowledge proof, multi-party secure computing), etc.

You can also check the latest progress of PAI blockchain technology through Project PAI’s weekly project progress report. The weekly report will provide the most timely information. Thank you for your support!

来源：PAI