
Ruthven Campbell Todd, known as R. W. Campbell, was a Scottish poet, artist, and novelist whose literary contributions spanned poetry, detective fiction, and children's literature. He gained prominence as an editor of the works of William Blake, showcasing his expertise in Blake's unique printing techniques and deepening the understanding of this influential poet's oeuvre. Campbell's scholarly work not only preserved Blake's legacy but also illuminated the complexities of his artistic methods, establishing him as a key figure in Blake studies. In addition to his editorial accomplishments, Campbell wrote detective fiction under the pseudonym R. T. Campbell during the 1940s, demonstrating his versatility as a writer. His children's fiction in the 1950s further showcased his ability to engage with diverse audiences. Through these various genres, Campbell left a significant mark on Scottish literature, blending artistic insight with narrative skill. His legacy endures in the realms of both literary scholarship and creative writing, reflecting a multifaceted career that enriched the cultural landscape of his time.
“Blockchains are possible because of consensus protocols – sets of rules that determine what kinds of blocks can become part of the chain and thus the “truth.” These consensus protocols are designed to resist malicious tampering up to a certain security bound. The blockchains we focus on currently use the proof of work (PoW) consensus protocol, which relies on a computationally and energy intensive lottery to determine which block to add. The participants agree that the longest chain of blocks is the truth. If attackers want to make a longer chain that contains malicious transactions, they must outpace all the computational work of the entire rest of the network. In theory, they would need most of the network power (“hash rate”) to accomplish this – hence, the famous 51 percent attack being the boundary of PoW security. Luckily, it is extraordinarily difficult for any actor, even an entire country, to amass this much network power on the most widely used blockchains, such as Bitcoin or Ethereum.””