Bitcoin’s Proof-of-Work Can Be Made More Efficient, IBM Research Claims

The problem they faced is that, unlike specialized PoW mining hardware for cryptocurrencies such as ASICs and GPUs, IoT devices vary widely in their computational power and energy resources. After all, IoT is a broad category that includes everything from pocket-sized temperature sensors to internet-connected automobiles.

https://www.coindesk.com/bitcoins-proof-of-work-can-be-made-more-efficient-ibm-research-claims/