Essential Points
- Technical Differentiation: Bitcoin Cash is not just a currency; it is the implementation of an on-chain scalability vision that prioritizes its use as a medium of daily exchange over a store of value.
- Origin by Consensus: The birth of BCH marked a milestone in blockchain governance, demonstrating how a divergence in development vision can result in two independent and functional financial ecosystems.
- Network Capacity: With a block limit of 32MB, the network processes a significantly higher transaction volume than the main Bitcoin network, while consistently maintaining minimal fees.
- Ecosystem Versatility: Beyond payments, BCH has evolved to support basic smart contracts and tokens (SLP), expanding its utility into simplified decentralized finance (DeFi).
The origin of Bitcoin Cash (BCH): Evolution or disruption?
The cryptocurrency Bitcoin Cash (BCH) marked a turning point by becoming the first major hard fork of the network BitcoinThis fork occurred after reaching block #478558, at which point a portion of the community decided to split up to implement a different technical vision. It wasn't just a name change; it was a declaration of intent regarding how the technology should scale.
The battle for block size
Why break with the main chain? The conflict lay in Bitcoin's original design, which limits the size of each block to 1 MB. For proponents of Bitcoin Cash (BCH), this space is clearly insufficient if we expect the entire world to carry out transactions daily.
By performing the fork, they raised that limit to 8 MB. The logic is compelling: The larger the block size, the more operations fit in it and the smoother the network becomes. However, this decision is not without cost, as it implies a greater storage burden for those who maintain the nodes, a toll that the Bitcoin Core community was not willing to pay in favor of decentralization.
The dilemma of commissions and micropayments
When the main network becomes congested, the price to send your tokens skyrockets. This happens because users compete in a kind of auction to have their transaction included in the next block by miners. If you want to pay for a coffee with a digital asset, it doesn't make sense for the transaction fee to cost more than the coffee itself.
- Scalability: BCH aims to process thousands of transactions per second.
- Reduced costs: Maintain minimum rates to encourage everyday use.
- Philosophy: Reviving the idea of "peer-to-peer electronic money".
Why was an agreement not reached?
Dozens of [unclear] have been introduced in the Bitcoin ecosystem Improvement proposals (BIP)But many proposals end up shelved. The core development team and a large portion of the user base fear that such aggressive changes would compromise the network's security or immutability. In the end, the lack of consensus made the hard fork inevitable. They preferred to create a new chain from scratch rather than risk the integrity of the crown jewel. Currently, both projects coexist, defending seemingly irreconcilable positions.
Visible faces after the fork
The break from the main blockchain was not a spontaneous event. Several figures with a long history in the digital asset sector decided that Bitcoin's stagnation was too heavy a burden. Who were the architects of this schism?
Roger Ver: The evangelist turned dissident
Roger VerKnown in the beginning as "Bitcoin Jesus" for his staunch defense of the technology, Ver was one of the first to see the commercial potential of these assets.
Bitcoinstore.com was already operating in 2012, demonstrating that real goods could be purchased without going through the banking system. As an early investor in companies that now dominate the market, his support for Bitcoin Cash was a game-changer: for him, if a token can't be used to buy a coffee quickly and cheaply, it has failed in its purpose.
Jihan Wu: The mining muscle
From China, Wu provided the industrial clout. As co-founder of Bitmain and head of Antpool, he controlled a massive portion of global computing power. His interest was not only ideological, but also practical.
Miners need an efficient network and blocks that can process the highest possible volume of transactions. Their support ensured that, after the split, BCH had the necessary power to survive the market attack and initial volatility.
The case of Craig Wright and the drift towards BSV
Few names generate as much friction as that of this Australian businessman. Craig Wright he jumped into the spotlight claiming for himself the identity of Satoshi Nakamotoa claim that crumbled under the scrutiny of experts of the caliber of Vitalik Buterin or the ill-fated Dan Kaminsky.
- The break: Wright soon clashed with the Bitcoin Cash management as well.
- New fork: Its departure led to the creation of a new crypto asset called Bitcoin SV (Satoshi Vision).
Is a project that relies so heavily on the egos of its founders sustainable? History tells us that, in this sector, code often speaks louder than press conferences. Currently, the divide between these factions is complete, making it clear that consensus is the scarcest resource in blockchain technology.
Controversy
The changes introduced by Bitcoin Cash (BCH) have not been without controversy throughout the crypto world. This has led to a strong confrontation between users, miners and developers of Bitcoin and Bitcoin Cash. Certainly Bitcoin has fairly serious scalability issues but its developers believe that they need to be fixed by other means. This goes beyond breaking compatibility and introducing drastic changes to the code. For their part, the developers and the Bitcoin Cash community accuse developers of Bitcoin Core of having a development monopoly and not proposing concrete solutions.
The result of this was extremist and completely divergent viewpoints on who was right or wrong. This situation arises when a group of people is unable to reach an agreement. This leads to friction that can escalate and divide the group into two or more factions depending on the positions they take. This situation was fueled by the existence of both evidence and half-truths within both Bitcoin and Bitcoin Cash. This exchange of accusations between the main players and proponents of each inevitably led to the polarization of both communities.
Ultimately, what happened in Bitcoin was a lack of consensus on which way to go. The minority group that disagreed with the roadmap voted by the majority of the network, activated a plan to carry out a hard fork and create their own blockchain with their own currency in the image and likeness of Bitcoin but with the changes they considered the best for Bitcoin to scale as optimally as possible.
Technical specifications and mining
As a direct hard fork, Bitcoin Cash mining does not require operators to purchase new hardware. It uses the same consensus algorithm, the Proof of Work (PoW), and the hash function SHA-256This implies that any team ASIC Designed for Bitcoin, it can be switched to BCH with a simple configuration adjustment.
Initially, this led to a curious phenomenon: as the computing power (hashrate) of the new network declined, the mining difficulty plummeted, allowing many miners to quickly obtain rewards with little effort. However, that "idyllic" scenario vanished long ago.
- Profitability in question: BCH's economic model faces a constant dilemma. By maintaining extremely low transaction fees, miners rely almost exclusively on the block reward.
- Difficulty setting: Digital adjustment algorithms (DAAs) have been implemented to prevent the network from crashing when miners jump from chain to chain seeking higher profits.
- Risk of centralization: Since the token's value is significantly lower than that of the original chain, the cost of securing the network is lower, theoretically making it more vulnerable to double-spending attacks if a large mining pool were to act maliciously.
Block size: Useful space or digital desert?
Bitcoin Cash's defining characteristic has always been its throughput. What began as an 8 MB limit quickly rose to the current 32 MB. On paper, this allows for the processing of tens of thousands of transactions every ten minutes, dwarfing the capacity of the main network.
What's the real problem? The space is empty. Currently, the vast majority of BCH blocks occupy only a tiny fraction of their total capacity, often hovering around or below 240 KB. It's like having a ten-lane highway with only one car passing through every hour.
"Having 32 MB blocks is useless if there is no real demand from users who want to fill that space with transactions."
Furthermore, this massive scale carries technical risks that we shouldn't ignore. Transmitting such large blocks across the network requires considerable bandwidth and rapidly growing storage capacity. If the network were to reach its maximum capacity, home nodes (those running on a standard computer) would have serious difficulties staying synchronized, leaving network control solely to large data centers. Is that the decentralized future we're looking for? Probably not.
Is it really worth sacrificing ease of validation for a space that, as of today, no one uses? This is the question the community continues to debate while the market delivers its verdict through the price of the cryptocurrency.
0-conf transactions
One of the most vociferous features of BCH is its ability to accept 0-conf transactions. These make mention of transactions that are taken as made without having confirmations in the blockchain. This is an option that was possible to use in Bitcoin Core, you just had to issue a transaction and accept it without confirmation.
However, this poses a significant risk of double spending. Given this situation, Bitcoin Core and BCH have diverged at this point and have created tools to handle this situation. In the case of Bitcoin Core, the function has been created RBF (Replace by Fee)But Bitcoin Cash considers this an unnecessary risk.
In that case, Bitcoin Cash's response has been to allow miners to maintain mempool transactions with unique identifiers managed by the nodes and miners. This prevents, for example, a Bitcoin Cash user from sending a transaction and replacing it with another using the same coins. This would invalidate the first transaction and result in double-spending.
However, the functionality of 0-conf transactions has proven to be certainly risky and manipulable. In fact, Bitcoin Cash SV also has this functionality and the same flaw, as we will see in the next video.
This teaches us that although Bitcoin Cash supports these types of transactions, they are not entirely safe and it is always better to wait for them to have real confirmations, instead of fully relying on 0-conf.
Other projects within Bitcoin Cash
However, Bitcoin Cash has evolved to the point of being the epicenter of several other blockchain technology projects that are very striking. Among these projects, we can mention:
SLP, create your own tokens on Bitcoin Cash
SLP or Simple Ledger Protocol, is a project within Bitcoin Cash that seeks to allow developers to create their own tokens that work on the Bitcoin Cash blockchain. It is to some extent, a more advanced version than the colored coins Bitcoin, as SLPs add much more advanced and less complex programming features to achieve the desired performance.
In fact, SLP allows to create, issue and transfer tokens that enjoy the same security and network model as Bitcoin Cash. Users can associate the created tokens with assets and securities, and therefore use the blockchain as the public ledger to achieve the transparency and integrity of their transactions.
As we mentioned, SLP is an evolution of Colored Coins, so there are a series of formats that help to create the desired tokens. These formats are:
- GENESIS defines the SLP token and issues the first batch of tokens.
- MINT issues other batches of tokens.
- SEND indicates the number of tokens sent to each output.
- COMMIT is proposed to allow periodic confirmation of all transaction hashes in the token.
To maintain consensus in the system, the OP_CODE OP_RETURN is used with custom outputs as the case may be. Furthermore, SLP makes use of a construct DAG (Directed Acyclic Graph) to build a transaction and UTXO system that maintains security in the validation of transactions of this type of tokens. Thus, full nodes can build the DAG test for an SLP transaction by recursively iterating through the inputs of that transaction to trace their ancestral transactions. The idea with this is to make SLP transactions fast, inexpensive and extendable.
smartBCH, EVM and Web3 on a Bitcoin Cash sidechain
Another function built on Bitcoin Cash is SmartBitcoin Cash (smartBCH), which is a sidechain project that works on Bitcoin Cash and that aims to explore new ideas and unlock possibilities. smartBCH is compatible with the EVM and the Ethereum Web3 API, so it is possible to deploy Ethereum DApps on the network, and enjoy these applications on a BCH-based network, enjoying its scalability and low commissions.
SmartBCH capabilities include:
- It is a network compatible with EVM and the Ethereum Web3 APIs. In this way it is possible to move DApps to this new network and enjoy them much more economically.
- Greater scalability by enabling a spend equivalent of XNUMX billion Ethereum gas, in just 15 seconds.
- It has been developed from scratch and is comprised of several low-level libraries that take full advantage of the hardware's potential, especially its inherent parallelism.
- You get an extra reward for Bitcoin Cash miners and holders, who can choose Smart Bitcoin Cash validators with hashing power and locked coins, respectively.
- Developing trusted unguarded two-way gateways, which can support any kind of Bitcoin Cash sidechains to transfer BCH bi-directionally securely. This allows Bitcoin Cash to include more sidechains for a richer ecosystem.
Another function similar to smartBCH is CashScript, another function that seeks to improve the capabilities of smart contracts on Bitcoin Cash.
Technical roadmap: Towards gigabyte capacity
To make Bitcoin Cash competitive against newer Layer 1 networks, its development team is working on optimizations that go far beyond simply "making larger blocks." The current focus is on software efficiency and data propagation.
Network layer optimization and signatures
Security and ease of transactions are the cornerstones of the upcoming updates:
- Schnorr Signatures: This improvement is vital for privacy and efficiency. It allows multiple signatures to be combined into one, reducing the space occupied by multi-signature transactions and making the token more difficult to trace.
- Graphene protocol: What good are 32 MB blocks if they take forever to reach every node in the world? Graphene uses advanced compression techniques to make propagation almost instantaneous, drastically reducing the bandwidth required.
The ambitious path to the 1 GB block
Following in the footsteps of landmark proposals like Bitcoin XT, the possibility of allowing adjustable block sizes up to one gigabyte is being considered. This would give miners complete freedom to manage the flow according to actual demand.
"A 1 GB block could process millions of transactions, but the storage and connection costs would put any user without a professional server at home out of the game. Is that the price of scalability?"
Microtransactions and network economics
Other improvements under study seek to adjust the granularity of the system:
- Fractional Satoshis: Allowing even smaller divisions of the basic unit ensures that, if the cryptocurrency's value rises, the fees remain in the cents of a euro. The risk here is that if the fees are too small, miners could lose the economic incentive to protect the network in the long run.
- Pre-consensus systems: Implement mechanisms that allow for near-instant transaction validation, even before the block is included. This would provide additional security for businesses that accept in-person mobile payments.
Currently, Bitcoin Cash remains an experimental laboratory for scaling a blockchain without resorting to complex off-network solutions. The challenge is not only technological but also social: convincing users that its vision is more practical than that of its competitors. The code evolves, but the battle for market relevance is fought with every block mined.
FAQ – What is Bitcoin Cash (BCH)?
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