Back in 1993, the Proof-of-Work (PoW) consensus algorithm was introduced and thrived in the blockchain space for 18 years. But in 2011, developers brought forward a more advanced concept – Proof-of-Stake (PoS). PoS aimed to tackle blockchain scalability issues and required significantly less energy to operate. More detailed comparison of these two algorithms can be found in this article.
By 2024, PoS had become the market leader, powering platforms like Ethereum (ETH), Cardano (ADA), Solana (SOL), and more. It seemed like PoW was on its way to becoming obsolete. However, there is a chance for a possible PoW revival.
The Kaspa Phenomenon: The Start of PoW's Transformation
In 2021, a new blockchain project called Kaspa emerged, sticking to the PoW algorithm instead of adopting PoS. This decision to improve upon Satoshi Nakamoto's original idea resonated widely, and Kaspa gained significant attention.
Kaspa's developers describe their project as a scalable, decentralized protocol with instant transaction validation. It builds on Bitcoin's protocol but with a tweaked version of PoW – Optical Proof-of-Work (OPoW). This allows it to overcome the scalability and performance limitations of earlier PoW versions.
Kaspa's high transaction throughput has given new hope to PoW. By the end of 2022, Kaspa's network nodes processed over 7,000 transactions per second (tps). In comparison, Ethereum handled 15 tps, Bitcoin 7 tps, and Solana – a leader in scalability – 60,000 tps.
Bitcoin Halving: A New Chapter for PoW
On April 20, 2024, Bitcoin underwent its scheduled halving, reducing the issuance of new coins. This event spiked interest in Bitcoin, driving its price up by 55% in the past three months – from $40,000 to $67,000.
This renewed attention on Bitcoin has also cast a spotlight on the PoW algorithm. It looks like PoW is experiencing a renaissance in 2024, significantly influenced by the halving event.
The Future of PoW in 2024
Just a few years ago, PoW was considered a fading model in the crypto industry. Today, abandoning it entirely in favor of newer algorithms seems unlikely. Several reasons point to a significant revival of the PoW mechanism.
- Security and decentralization
PoW was the first to introduce decentralization in the digital space. PoS lags behind in terms of decentralization and resilience against cyberattacks. Considering the blockchain trilemma – scalability, security, and decentralization – PoS excels at scalability but falls short on the other two fronts. Meanwhile, PoW maintains high security and decentralization but struggles with scalability.
- Integration of AI
The convergence of AI and blockchain technologies has been a hot topic recently. Leading the way are projects like Bittensor (TAO) and Clore.AI (CLORE).
– Bittensor (TAO). A peer-to-peer network combining PoW and AI technologies for mutually beneficial power and capability sharing. It aims to create a unique decentralized market for large AI models, fostering innovation and technology exchange.
– Clore.AI (CLORE). A platform for renting AI computing power. It provides access to nearly 6,000 Nvidia GPUs, which can be used for mining, rendering, AI model training, and more. Nvidia GPU owners can connect to the protocol and earn rewards for providing their computing power.
- PoW and the Internet of Things (IoT)
The PoW ecosystem aligns well with the IoT concept. IoT involves numerous physical objects connected to the internet, exchanging data. Decentralized and secure management is crucial here, making PoW a suitable fit.
Challenges Facing PoW
While PoW is growing and evolving, several long-standing issues remain unresolved. The success of its revival depends on addressing these problems in the near future:
- Low liquidity
- Security concerns
- Regulatory pressures on anonymous PoW cryptocurrencies
Conclusion
The evolution of the crypto industry, like any large and resilient system, involves transitioning from outdated models to more current alternatives with new, progressive ideas. It's also logical to upgrade these models if completely abandoning them is impractical. In 2024, PoW is undergoing such a transformation, which many analysts see as a period of resurgence.
If you want to learn more interesting facts about crypto then check out our blog! You might like our articles “Monthly Digest: May” and “Comparing the Current Crypto Bull Run to Historical Trends”.
