A cheat sheet to illustrate details on Investors checklist for Blockchains . Data or stats are not authoritative and picked from scans of tweets, discord , telegram reddit etc 2021 Q4 and some references are provided. In case of any misses do let me know and I will update. These notes are more on under-the-hood engineering look. A separate article will cover the business development viewpoint
I use the trading ticker rather then name and for example for Axie Infinity blockchain game $AXS implies the coin or token and AXS implies the foundation/DAO/founders as appropriate
Status : DRAFT
Basics
Price Action
Stats and Links
Highlight Pro and Con
Technology
Apps Ecosystem
Funds and Promotions
Readings
Nervos Network ($CKB) was launched in 2018 by Cipher Wang Former Product Director at the Blockchain Lab of the China Banknote Printing and Minting Corporation, Terry Tai, Kevin Wang and others.Mainnet came in Nov. 2019. It is a public blockchain that uses a different architectural design by separating its infrastructure into two layers: a single base layer Nervos CKB (Common Knowledge Base) as Layer-1 and a high-performance application layer (Layer-2). Nervos developers are building a collection of protocols to provide the scalability and environment necessary to support applications.
Common Knowledge Base $CKB is a general-purpose, Proof-of-Work (PoW) blockchain that serves as the consensus engine for Nervos-based applications and application layers. This base layer also features a native utility token, the CKByte (CKB) for miner incentivization .
200 tps with NC-max (Nakamoto Consensus) on POW L1 and ~1K with POA Godwoken layer 2 or POS Polyjuice EVM L2. ttf under 2 minutes
893% Return from 2021 low to high.
0.00378USD ( Jan 1) - 0.0222USD ( Dec 31) 487.34% returns in 2021
Community Stats 16K+ Reddit 19K+ Telegram 83K Twitter
Links Discord Github Nervos Talk Forum Twitter Website Whitepaper Telegram Reddit
Modular POW for main chain nd POS for sub chains
EVM compatible
large scale bridges and links to other chains
Free NFT transfers features
Needs more apps and use cases
The Nervos Common Knowledge Base ( $CKB ) is the layer 1, proof of work, public permission less blockchain protocol of the Nervos Network. It allows any crypto-asset to be stored with the security, immutability, and permission less nature of Bitcoin while enabling smart contracts and layer 2 scaling. The mining algorithm is Eaglesong, and they have third party mining pools .
Nervos opted to host a mining competition on its testnet, where the top participants received real financial rewards in Nervos’ native CKB token upon mainnet launch (Nov. 15, 2019). This method helped familiarize miners with the nuances of Nervos’ blockchain and mining client design while facilitating token distribution. Current payout was 6 $CKB per 100MH/Sec/day. LINK.
CKB VM is just an implementation of the RISC-V Instruction Set Architecture(ISA)
Consensus
Lite Nodes initiate transactions which are cached and propagated in memory by full nodes and placed into blocks by miners and added to the chain using POW consensus. 4 subsequent blocks are used for TTF.
L2 Chain Godwoken works by having a set of aggregator nodes collect specially designed layer 2 transactions, then pack them into a CKB transaction, which they submit to layer 1 CKB for acceptance. In 2021 Godwoken uses Optimistic Rollup based design with A Proof-of-Authority and plans for A ZK Rollup based setup in future. There is an ETH compatible EVM Polyjuice with facilities to handle state in different shards ( L2 chains)
CKB uses a hybrid of UTXO and account based model with Cells acting as UTXO but state maintained at account level. Blocks have cells as trace of transactions. A state change on CKB is represented by a transaction destroying some cells from previous transactions, and creating some new cells. The concept of state, is reflected via a set of UTXO ie 'live cells' in CKB. A transaction is atomic, it either gets accepted, or rejected.
As an abstract state verification model, the Cell model offers an internally unstructured storage space (data) and supports any state verification rule (type) and ownership verification rule (lock). We can simulate how the UTXO model works in the Cell model (as seen in SatoshiCoin), or build the Account model in it.
The code is kept in 'live cells' (UTXO ) and referenced from the cell in a transaction. CKB charges a rent fee cost per byte used by smart code etc in CKbyte token.
Nervos uses Muta toolkit for creating a L2 chain with Overlord consensus providing parallel consensus and execution and Rust coding. sUDT are are ERC20 type user defined tokens and xUDT is an extension to support regulation compliance capabilities. It provides features such as transfer whitelists and black lists, emergency Halts and support for Security Token Offerings ( STO)
Interoperability with other L1 using bridge/routers and ForceBridge with ETH and BSC operational and Cardano ($ADA) under works. ckETH wrapped? Forcebridge avoids wrapping tokens and enables each chain to issue equivalent value tokens
Roadmap shows YokaiSwap Mimblewimble for enterprise users to hide amount and vendors transactions.Light client support. Payment channels. NFT with built in transfer fee enabling zero fee usage by collectors
Funding
2018 raised 30 Mill from 30 VC like Polychain, CMS, Dragonfly, Electric Capital, Multicoin, Huobi capital
Nov 2019 $72 million CoinList-hosted token sale. Included investments from China Merchants Bank International (CMBI), Polychain Capital, Blockchain Capital, Hashkey, MultiCoin Capital, and Distributed Global.
Promotions
Godwoken Whitelisting program and other initiatives. Ecosystem with Mining pools etc.