NKN Bi-weekly Report June 1–17, 2019

Posted on June 21, 2019

Highlights

Huobi Global selects NKN for Fastrack listing
Testnet token (tNKN) redemption starts June 17th
New all time high for public testnet: 12,280 nodes
Experimental D-Chat featuring NKN Messaging and Pub/Sub
PR: “NKN: The Primer” published on TheDailyChain
New “What is NKN” animated video
Node Scanner Available for Windows

R&D highlights

Github source code development progress

Our core developers are using the month of June for bug fixes, performance and security improvements, testing and more testing of mainnet (v0.9).

NKN testnet code development progress over the last two weeks is mainly reflected in nkn, nnet, nkn-wallet-js, nkn-client-js, and go-nat repositories and different branches.

Pull Request: 42

Commits: 63

NKN Testnet v0.8.3-alpha

Fixed a timestamp bug that caused some nodes stop

NKN Mainnet v0.9 (a long list)

remove orphan txn list from txpool
Upgrade protocol version
Differentiate between hard and soft timestamp check
Add http client timeout
fixbug: deadlock in BlockValidationState
fixbug: incompatible data in wallet.dat
Add random offset to timestamp tolerance
Check txn root for REQUEST_FULL_TRANSACTION
use GenerateID transaction to generate chordid
fixbug: check the return code of cs.spendTransaction
fixbug: cs.GetCurrentBlockStateRoot return wrong root when height is 0
pass to CleanSubmittedTransactions only txs that existed in local pool
try to refresh block validation state when clearing txs from the pool…
implement initial version of nano pay
Improve verification in txpool
defer changes to BlockValidationState until all verifications are passed
Add NumTxnPerBlock in config to control self proposed block size
Add max voting interval to prevent mixing votes between rounds
Upgrade db and protocol version
Pre-fill votes to neighbors before election starts
Set local consensus height when first get neighbor’s majority consensus height
Increase db and protocol version
Change txn verification to async to avoid msg congestion
Add Mining param in config to enable validator without mining
improve state db flow
unify and optimize tx validation
improve txpool memory usage
improve getrawmempool API
Add timeout for building block
Send i have block msg before verification for faster block propagation
Add txn signature verification cache
Add deadline for verify transactions
Upgrade protocol and database version
Prevent fetching the same non-optimal sigchain twice
Check if returned sigchain response is nil
Optimize sigchain verification logic to reduce verification cost
Verify sigchain txn after receiving it from neighbor
Increase db version and protocol version
Implement efficient sigchain broadcasting
Add transactions root check
Implement fast block propagation by only requesting txn hash
Use pb struct directly in message to avoid double unmarshal
Remove dot imports except for importing nkn/common
Change all msg type to unsigned
Implement hop by hop encryption for all node to node traffic
Verify node verison/id/port before dialing using the new nnet middleware
Remove wait after block persist due to block persist API change
add more information in JsonRPC
Rename ConsensusData to RandomBeacon
add API ‘getid’ and nknc command ‘id’
add verification in txpool, mining and tranactioncheck
add GenerateID processing flow in statedb and store
add GenerateID transaction in pb/payload.proto

Huobi Global selects NKN for FastTrack listing

On June 4, NKN was selected by Huobi Global as one of the first 5 Fastrack Projects for listing. This demonstrates the tremendous achievements by NKN project in terms of technology and product maturity, community support, and overall ecosystem strength.

This Fastrack listing of NKN will:

spread awareness of NKN project among Huobi Global’s millions of users in over 130 countries
improve the liquidity of NKN tokens

Huobi Global selects NKN for Fastrack listing

https://forum.nkn.org/t/huobi-global-selects-nkn-for-fastrack-listing/822

Testnet token (tNKN) redemption starts June 17th

NKN is happy to announce the redemption program to swap your NKN test tokens (tNKN) into ERC-20 NKN token starting Monday June 17th, 2019. The end date is to be determined and will be announced later.

The official tNKN testnet token swap tool is here:

Conditions and restrictions:

The minimal tNKN test token you can redeem is 100 from each wallet address, and the maximum is 500,000.
Conversion ratio is 5:1, 5 NKN test tokens will be converted to 1 ERC-20 NKN
The redemption period will start Monday June 17th, 2019 and the end date is to be determined.

There is a daily upper limit of 2,500,000 tNKN (equivalent of 500,000 NKN), for swap. It is designed to enhance swap system security and smooth out the impact on overall token supply. It will be replenished every day at around 10AM Beijing time (2AM UTC).

NKN testnet token (tNKN) redemption:

https://forum.nkn.org/t/nkn-testnet-token-tnkn-redemption/1027

New all time high for public testnet: 12,280 nodes

On June 7th, NKN reached a new all time high of 12,280 full consensus nodes running on our global testnet. NKN is the largest blockchain network based on number of full consensus nodes, surpassing Bitcoin, Ethereum, and Bitcoin Cash.

$btc: 9666 nodes
$eth: 8555 nodes
$bch: 1571 nodes

With our Mainnet launch soon as well as new flagship products nCDN and Pub/Sub messaging, we are on track to grow to more than 25,000 nodes by the end of the year.

https://twitter.com/NKN_ORG/status/1137030088224940032

Community contributions

Experimental D-Chat featuring NKN Pub/Sub

NKN Community member lynn has created an experimental D-Chat messaging app as a browser plug-in. It is based on the Web3Infra Alliance D-Chat app which was open sourced back on February 11th, 2019. NKN is a founding member of the Web3Infra Alliance and the D-Chat app showcases the use of blockchain based decentralized services in a real-world application. The experimental D-Chat app uses NKN’s new decentralized pub/sub messaging to manage message delivery across multiple users in a group chat. The App is available as a browser plugin on Firefox or Chrome.

Experimental D-Chat browser plug-ins:

https://forum.nkn.org/t/d-chat/1036

NKN: The Primer

On June 14th, NKN Community member gigamesh published on TheDailyChain the blog, “An Introduction to New Kind of Network, Censorship Resistance, and Cellular Automata” to serve as a non-technical primer for NKN. The article not only covers the need for a decentralized Internet, but also shares the underlying concepts of NKN’s network such as a Cellular Automata, Proof of Relay, and more. You can check it out here.

New “What is NKN” Video

Thank you to community member, ulimuli, for creating this “What is NKN” introduction video. Versions are available in English as well as German and Turkish.

English

https://forum.nkn.org/t/what-is-nkn-video/817

German

https://forum.nkn.org/t/was-ist-nkn-video/811

Turkish:

https://forum.nkn.org/t/nkn-nedir-video/812

NKN Node Scanner Available for Windows

Community member Allen from Shanghai has created the NKN Node Scanner, a tool to monitor all your local NKN nodes. This is very handy if any of the online web monitoring tools are not online. The tool is available as an executable for Windows and requires .Net Framework 4.6 if not using the tool on Windows 10.

NKN Node Scanner:

https://forum.nkn.org/t/nkn-node-scanner/968

About NKN

NKN is the new kind of P2P network connectivity protocol & ecosystem powered by a novel public blockchain. We use economic incentives to motivate Internet users to share network connection and utilize unused bandwidth. NKN’s open, efficient, and robust networking infrastructure enables application developers to build the decentralized Internet so everyone can enjoy secure, low cost, and universally accessible connectivity.