Nervos Network aims to expand on Bitcoin’s core technological primitives with (Common Knowledge Base (CKB) a scalable Layer-1 blockchain that enables Layer-2 support for Bitcoin. CKB employs a Proof-of-Work consensus mechanism like Bitcoin but generalizes Bitcoin’s limited UTXO model and scripting capabilities by allowing more flexible data storage and verification. To improve Bitcoin’s arbitrary programming limitations, Nervos Network leverages a custom Cell Model for state storage and a virtual machine (CKB-VM) for transaction execution. The cell model is core to CKB’s data structure and features a dual script model that allows any data to be stored and verified onchain. CKB-VM is CKB's execution engine for running smart contracts and decentralized applications. The VM utilizes the RISC-V instruction set, a flexible and simple open-source hardware architecture set (ISA) that supports multiple programming languages, including popular ones like C and Rust.
Launched on mainnet in November 2019, Nervos Network has since evolved into one of the few independent blockchains scaling Bitcoin. Nervos scales Bitcoin through RGB++, an asset issuance protocol inspired by the RGB protocol. RGB++ allows users to issue assets on Bitcoin mainnet that are mapped to CKB cells through isomorphic binding. Although CKB serves as the data storage and verification layer for RGB++ assets and transactions, these assets inherit Bitcoin security. That is, these assets cannot be double spent as each asset is mapped to a UTXO on Bitcoin. Beyond asset issuance, Nervos aims to enable improved programmability for Bitcoin with the RGB++ layer, an extension of the RGB++ protocol that enables RGB++ assets to be mapped across other UTXO blockchains. The RGB++ layer serves as the smart contract and interoperability layer for RGB++ assets, enabling developers to build and deploy more flexible decentralized applications similar to those in EVM-compatible environments.
For a full primer on Nervos, refer to our Initiation of Coverage report.
Key MetricsFinancial AnalysisNervos Network’s native token CKByte (CKB) plays an essential role in maintaining the network’s security and incentivizing efficient storage. CKB serves the following key functions on the network:
In Q3’24, CKB’s marketcap rose 36% QoQ to ~$752 million, recovering from a 38% decrease in Q2’24. Despite broader market contractions and mixed price sentiments in Q3’24, CKB’s price remained resilient in Q3’24, with its price rising by 35% QoQ to $0.017. This growth in marketcap and price was largely fueled by CKB’s exchange listing event in mid-September by the South Korean exchange Upbit. The listing reignited significant market interest in CKB, especially from the asian market, driving the token’s price to a quarterly high of $0.018. Consequently, CKB’s marketcap ranking improved from 119 in Q2 to 89 by the close of Q3’24.
Secondary IssuanceCKB manages state bloat through two methods. Firstly, to store data onchain, users must lock CKB tokens. Rather than directly charging a fee for users locking CKB tokens to pay for state rent, CKB indirectly charges fees through an inflationary mechanism known as secondary issuance. Each year, 1.344 billion CKB tokens are minted through secondary emissions and distributed to miners, Nervos DAO depositors, and eventually, an onchain protocol treasury. As such, the network’s secondary issuance introduces inflation targeted at users storing data, as locked CKB tokens are automatically exposed to value dilution, which is an indirect way of paying for State Rent. As of Q3’24, over 700 million CKB tokens have been distributed to miners as state rent, ~1.20 billion CKB tokens have accrued to Nervos DAO depositors, and over 4.7 billion CKB tokens meant for the proposed Treasury Fund have been burned since the protocol’s treasury remains inactive as of Q3’24.
Nervos CKB revenue is measured as total transaction fees and is distributed to Miners through Nervos CKB”s Proof of Work mechanism (along with a portion of the network’s secondary issuance. In Q3 2024, network revenue increased by 47% QoQ to $568 million, driven by a 36% QoQ rise in circulating market cap. This growth was also fueled by CKB’s exchange listing on Upbit in September, which boosted trading activity and price, significantly increasing transaction fees in USD terms. Additionally, the launch of key infrastructure developments, including the RGB++ Layer and Fiber Network, further enhanced network activity by enabling more smart contract transactions, particularly for BTCFi applications.
Network AnalysisCommon Knowledge Base transactions and new addresses rose 34% QoQ to 37.6k, while new addresses rose 32% QoQ to 9.4k. This growth was largely driven by CKB’s exchange listing event in September and core development releases in Q3’24, including the launch of the RGB++ Layer and the unveiling of the Fiber network.
Cell activity is divided into live and dead cells. Live cells are available for future transactions, smart contract execution, and data storage. Whereas, Dead cells, are no longer usable as transaction inputs, still contain valuable data that can be accessed and referenced, contributing to the blockchain’s history and data traceability.
In Q3’24, CKB cell activity dynamics changed as live cells dropped 11% QoQ to 1.5 million, while dead cells rose 9% QoQ to 63 million, marking the first decline in live cell activity this year. This shift likely came from increased transactions tied to RGB++ asset issuances and smart contract use, which could consume live cells as part of updating states or transferring assets. The rise in dead cells reflects more network activity being finalized and stored permanently onchain as ongoing RGB++ releases continue to spur this growth.
As a PoW network, miners secure CKB by solving cryptographic puzzles to validate transactions and add new blocks to the blockchain. For every block mined, the miner receives that block's full 'base issuance' reward and a portion of its 'secondary issuance' reward. Miners also earn proposals or commit rewards from transaction fees for processing transactions on the network.
The hashrate measures the total computational power dedicated to mining on a Proof-of-Work (PoW) blockchain and directly reflects the security of the network. A higher hashrate indicates increased mining activity. In Q3 2024, the CKB network achieved a record mining difficulty of 4.4EH/s while the hash rate remained stable, declining by just 1.7% QoQ to 365 PH/s in September, reflecting heightened miner competition as CKB’s price appreciated. These increases were primarily driven by CKB’s listing on the South Korean exchange Upbit, which spiked its price and made mining more profitable. The improved profitability attracted more miners, intensifying competition, which elevated both the network’s hashrate and difficulty.
Additionally, sustained growth in hashrate and difficulty throughout the quarter was supported by ongoing developments and releases for the RGB++ protocol and Fiber Network.
RGB++ ProtocolNervos’ development efforts through 2024 have focused on scaling Bitcoin with the RGB++ protocol. Inspired by the RGB protocol, RGB++ leverages CKB as the client-verification and data storage layer for asset issuance. The original RGB protocol operates like a two-way payment channel built on Bitcoin Core that allows users to issue and manage assets without storing transaction data onchain for verification. Instead, users run client-side verification nodes to store RGB asset data offchain, bypassing Bitcoin’s consensus protocol. This system presents several limitations:
RGB++ addresses these limitations by leveraging CKB as a decentralized third-party indexer providing data verification and storage for RGB++ assets. This improved design enables features like onchain data attestation, independent asset issuance, and more programmable asset management, which is not possible with the original RGB protocol. The RGB++ protocol maps Bitcoin UTXOs to CKB Cells through isomorphic binding, enabling seamless integration with CKB's Turing-complete smart contracts. Isomorphic binding ensures that RGB++ assets are not double spent so long as the UTXO on Bitcoin cannot be double spent, hence inheriting the security of Bitcoin’s blockchain. Additionally, users can also issue RGB++ assets on the CKB blockchain and leap it to the Bitcoin blockchain without any cross-chain bridges, inheriting Bitcoin’s security. In April 2024, the RGB++ protocol went live on the CKB mainnet, enabling users to issue and manage RGB++ assets, leading to a resurgence in network activity.
RGB++ LayerIn July 2024, the RGB++ protocol was upgraded to the RGB++ Layer, extending the protocol’s roles beyond functioning as an asset issuance layer to include serving as:
To function in this capacity, the RGB++ Layer combines isomorphic binding with a “Leap” concept to provide a "bridge-free" cross-chain interaction experience for RGB++ native assets or inscriptions/runes between BTC, CKB, and other UTXO-based blockchains like Cardano.
When an asset “leaps” from Bitcoin to CKB, it effectively rebinds its control permissions to a cell on the CKB chain while its data remains securely stored within CKB’s structure. For example, if a user’s assets were previously bound to Bitcoin UTXOs, they can now be re-bound to UTXOs on Cardano or any other UTXO-based chains. As a result, asset control permissions are transferred from BTC accounts to Cardano or other accounts.
A typical asset leap operation across multiple UTXO-based blockchains is as follows
The RGB++ Layer also leverages CKB's Turing-complete smart contract environment (CKB VM) to enable decentralized application development. This spurred the emergence of BitcoinFi (BTCFi), similar to decentralized finance (DeFi) within the Bitcoin and UTXO ecosystem. As such, developers can build and deploy RGB++-compatible applications across several connected UTXO-based chains connected to the RGB++ Layer.
Fiber NetworkIn September 2024, Nervos unveiled the Fiber Network, a lightning network optimized to provide fast, low-cost, and decentralized multi-token payments and peer-to-peer transactions for RGB++ assets. The protocol’s design is inspired by Bitcoin’s Lightning network, building on two key technical concepts that compose the Lightning network stack:
In addition to the above, Fiber Network also introduces two additional capabilities to the lighting technology:
As of Q3’24, a prototype of the Fiber Network is live. It implements the basic functions of opening, updating, and closing channels between two nodes and also verifies cross-chain functionality with the Bitcoin Lightning Network.
Near-term future releases planned by the Nervos team include:
CKB tokenholders are natively protected against the dilutive impact of the network’s ongoing issuance model via the Nervos DAO. By locking CKB token holdings into the Nervos DAO smart contract, users can earn rewards from secondary token issuance, ensuring their holdings are hedged against inflation. Depositors receive rewards at an APR equivalent to the annual secondary issuance rate, although the rate will continue to decrease as the total supply increases. While tokenholders with a minimum balance of 102 CKB tokens can deposit to the DAO anytime, withdrawals can only occur at the end of the 30-day deposit cycle.
By Q3’24 ending, total quarterly Nervos deposits declined by 64% QoQ to 438 million CKB, bringing the total Nervos DAO deposit balance to ~8.5 billion CKB, roughly 19% of the CKB circulating supply. Over the past two years, the deposit-to-circulation ratio has continued to trend downloads, declining by 10% QoQ to 19.5% in Q3’24. The decline is likely driven by increased onchain activity from developments like the RGB++ protocol and Fiber Network, which encourage users to withdraw funds to participate in new asset issuance programs and smart contract operations. Additionally, CKB’s price surge following its Upbit listing likely incentivized users to trade their holdings for better short-term returns. Declining relative incentives for DAO deposits and the need to cover state rent may have further contributed to the trend, signaling a shift towards increased liquidity and active participation within the Nervos ecosystem.
Since its launch in April 2024, RGB++ has processed over 80,000 transactions on CKB, with activity peaking in Q2 at 78,000. However, Q3 2024 saw a significant contraction, with transactions declining 87% QoQ to just 10,000. A similar downtrend was observed on Bitcoin, where RGB++ transactions and newly mapped addresses peaked in April at 3,050 and 1,500, respectively, but declined by over 60% and 97% QoQ in Q3, respectively, to reach new lows.
Unsurprisingly, this decline occurred during a development-focused period marked by upgrades to the RGB++ protocol, the launch of the Fiber Network, and additional tooling aimed at laying the groundwork for a BTCFi ecosystem across UTXO-based chains. For instance, foundational releases like the RGB++ Layer enable cross-chain decentralized applications, programmable assets, and broader UTXO-based DeFi use cases beyond CKB and across several UTXO chains like Cardano. While the immediate impact on transaction activity has been muted in these previous quarters, these infrastructure investments position the Nervos CKB for a rebound as developers deploy new applications on the RGB++ layer. This strategic focus on infrastructure should drive renewed transaction activity growth in subsequent quarters, reversing the recent downtrend.
Nervos Network continues to promote ecosystem development with funding, infrastructure, and tooling support. At the mainnet launch in November 2019, ~5.7 billion CKB (17% of the Genesis allocation - $62.4 million as of writing) was set aside to fund these initiatives. Over the years, several ecosystem development programs have been seeded from this fund to drive the network’s growth initiatives. One such initiative is the CKB Eco Fund (prev. InNervation), an ecosystem fund focused on incubating and investing in pre-seed and seed projects connecting CKB and Bitcoin using RGB++. The fund supports ecosystem projects building critical infrastructure and decentralized applications across various sectors, including DeFi, gaming, tooling, NFT marketplaces, and more. Ecosystem projects building across eligible verticals can apply for ongoing grant programs organized by the CKB Eco Fund or the CKB Community Fund DAO.
BTCKBIn January 2024, the CKB Eco Fund launched BTCKB, a development initiative to enhance integration between the Bitcoin and CKB blockchains through shared PoW consensus and the UTXO model. BTCKB intends to advance the capabilities of the Bitcoin blockchain by introducing new smart contract functionalities and leveraging BTC, Taproot, and RGB++ assets into the CKB blockchain. As part of this initiative, CKB Eco Fund has also incubated CELL Studio, a blockchain software company led by Nervos’ co-founder Cipher Wang that also spearheads the BTCKB initiative. CELL Studio develops infrastructure and applications that enhance and expand the Nervos ecosystem, similar to how ConsenSys has built foundational tools for Ethereum, such as Infura and Metamask. As of writing, notable ecosystem tools developed by CELL studio include:
The RGB++ Layer extends smart contract capabilities beyond Nervos (CKB) and Bitcoin to other UTXO-based chains, positioning CKB as the verification and data storage layer for the entire UTXO ecosystem. Since its launch in Q3 2024, the number of RGB++ assets issued on CKB surged by 487% QoQ, increasing from 85 in Q2 to 487 in Q3. Additionally, over 35 ecosystem projects have utilized the protocol for asset issuance, with several projects actively building across diverse verticals, further demonstrating its growing adoption and versatility within the ecosystem. A few notable projects across different ecosystem verticals are detailed below.
Infrastructure and ToolingNotably, in September 2024, the Nervos developer relations team launched NervDAO, a wallet interface that streamlines and simplifies the user experience for CKB’s Nervos DAO. As such, users can easily interact with and initiate deposits and withdrawals from the DAO from any CKB-compatible wallet with support for NervDAO, like the JoyID wallet.
The launch of the RGB++ Layer in Q3’24 has spurred the emergence of a decentralized finance ecosystem on Nervos CKB and across other UTXO-based networks. As of Q3’24, notable projects building across DeFi (BTCFi) verticals like decentralized exchanges, non-custodial money markets, real-world tokenization protocols, and stablecoins on the RGB++ Layer include:
As of writing, users can currently open vaults to borrow RUSD against BTC or CKB collateral or redeem RUSD for CKB/BTC at a 1:1 USD value.
WORLD3 is an AI and blockchain-based gaming project that aims to merge autonomous virtual worlds with environmentally intelligent AI agents to create dynamic, interactive ecosystems. World3 is a blockchain-based platform designed to create interconnected ecosystems for digital goods and AI-driven virtual environments. WORLD3 leverages Nervos’ capabilities to automate economic interactions, ensure reliable data storage, and facilitate cross-chain transactions. WORLD3 operates a modular platform comprised of three layers:
WORLD3 executes its vision of autonomous worlds via an ecosystem of applications that include:
Other notable ecosystem applications include:
Notable ecosystem partnerships secured in Q3 include:
Q3 2024 marked a pivotal period for the Nervos Network, highlighted by the launch of the RGB++ Layer and Fiber Network, which solidified its position as an emerging hub for BTCFi within the UTXO ecosystem. These advancements catalyzed significant ecosystem growth, with the issuance of RGB++ assets surging by 487% QoQ to 487 assets and notable project integrations across DeFi, gaming, and real-world asset tokenization. Concurrently, network activity expanded as transactions and new addresses rose by 34% and 32% QoQ, respectively, fueled by September's Upbit exchange listing and sustained development momentum. Despite broader market contractions, CKB defied the downtrend with its price and market cap increasing by 35% and 36% QoQ, respectively, supported by record-breaking hashrate and mining difficulty levels.
Strategic ecosystem partnerships, such as those with GameBuild and ZenGate, expanded Nervos’s reach into gaming and real-world asset markets. While a temporary decline in transaction activity was observed due to infrastructure build-out, the investments in decentralized finance (BTCFi), scalable Layer-2 solutions, and cross-chain applications position Nervos for a strong rebound.
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