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区块链国际资讯

韩国即时通讯平台Kakao推出自有区块链平台Klaytn

区块链国际资讯

韩国即时通讯平台Kakao推出自有区块链平台Klaytn

6个月前,韩国即时通讯巨头Kakao宣布进军区块链领域。

今年3月,该公司的区块链开发部门Ground X正式成立,其最初的构想是通过区块链网络将Kakao现有互联网产品(如KakaoTalk)等都集成在一起。

近日,该部门宣布推出自有品牌区块链网络Klaytn的测试网络(testnet)。据悉,该网络现已向10个受邀合作伙伴提供。

来自项目白皮书的信息显示,Klaytn区块链将采用共识节点(CN)和游侠节点(RN)的混合方式概念来实现可扩展性和透明性,为分散的应用程序(dapps)奠定技术基础。

CN是网络上的合作伙伴,它们共同组成一个私有区块链,通过运行拜占庭容错(BFT)一致性算法来批量和确认交易。同时,来自公众的任何人都可以连接到网络并作为RN参与,其职责是双重检查已经由CN传播的区块。

“RN从CN中下载新创建的块,并在存储区块链的本地副本间进行定期交流。它们验证CN选择的新块并检查CN是否永远不会在给定区块高度的内容。任何人都可以作为RN加入网络,“Ground X在论文中写道。

通过这种混合方法,Ground X声称测试网络中的区块传播间隔已减少到每秒不到一秒,并且每秒可提供高达1,500次的吞吐量。

为了激励参与,该网络将根据他们的贡献按比例向这两类节点分发100亿“KLAY”令牌,但到目前为止尚未公布确切比例,预计该网络每年会发行额外的令牌作为区块奖励。

Ground X补充说,它将在稍后阶段向公众发布网络的源代码,Klaytn全网(或主网)将在2019年第一季度推出。CoinDesk曾向该公司提问,希望了解在网络正式推出之后KLAY令牌能否可以在交易所中进行交易,不过截至发稿时,该公司尚未对此做出回复。

 

Ground X, the blockchain development arm of the South Korean messaging giant Kakao, has launched a test network (testnet) of its proprietary blockchain network dubbed Klaytn.

The firm said in a press release on Monday that the testnet is now made available to 10 invited partners on the network. It has also published a white paper offering details of the platform, which seeks to lay the technological foundation for decentralized applications or dapps.

According to the white paper, the Klaytn blockchain takes a hybrid approach that adopts the concepts of consensus nodes (CNs) and ranger nodes (RNs) to achieve both scalability and transparency.

CNs are invited partners on the network that together form a private blockchain to batch and confirm transactions by running a byzantine fault-tolerant (BFT) consensus algorithm, according to the white paper. Meanwhile, anyone from the public can connect to the network and participate as a RN, whose duty is to double check blocks that have been propagated by the CNs.

"Ranger nodes (RNs) download newly created blocks from the CNs and periodically communicate ('gossip') among themselves while storing a local copy of the blockchain. They validate the new blocks chosen by the CNs and check that the CNs never equivocate on the content of a given block height. Anybody can join the network as an RN," Ground X wrote in the paper.

Via this hybrid approach, Ground X claims the block propagation interval in the testnet has been reduced to less than one per second and offers throughput of up to 1,500 transactions per second.

To incentivize participation, the network will proportionally distribute 10 billion "KLAY " tokens to both types of nodes based on their contribution, though an exact ratio has not been announced so far. The network is expected to issue additional tokens every year as block rewards.

Ground X added that it will publish the network's source code to the public at a later stage and the Klaytn full live network (or mainnet) will launch in the first quarter of 2019. At press time, the company had not responded to a CoinDesk enquiry on whether the KLAY token will be tradable on exchages when the network is official live.

The testnet launch comes roughly six months after Kakao revealed its plan to move into the blockchain space.

As CoinDesk previously reported, the firm confirmed the creation of Ground X in March and said at the time that the envisioned blockchain network will also be integrated with Kakao's existing internet offerings such as Kakao Talk messaging app.


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