In a recent high-profile event, Scarce City wrapped up an auction by cutting its fee to 15%, netting Christian Langalis around 13.6 Bitcoin, valued at $875,000. Notably, a notebook paper showcasing the famous "Buy Bitcoin" phrase, seen during a broadcast with Janet Yellen in 2017, sold for about 16 Bitcoins.

The auction, hosted at PubKey, a Bitcoin-themed bar in New York City, was arranged by Scarce City. The top bid came from someone using the pseudonym Squirrekkywrath, winning after a week-long open auction. Christian Langalis, also known as Bitcoin Sign Guy, personally conducted the auction, held on the Scarce.City platform.

The iconic "Buy Bitcoin" message on the yellow notebook represents Bitcoin's rise in the financial world. This physical relic, amidst Bitcoin's digital realm, stands as a notable symbol. Inside the auctioned notebook are Langalis' original notes and sketches from that historic moment.

Back then, Langalis was a 22-year-old intern at the Cato Institute. The proceeds from the auction will support his new venture, Tirrel Corp, focusing on a Bitcoin Lightning network wallet on Urbit.

Langalis, in 2019, made and sold 21 copies of the iconic Buy Bitcoin sign, each fetching an average of 0.8 Bitcoin. Today, they would be valued at around $51,300 each. These copies are displayed in various venture firms' offices, including Paradigm, Blockchain Capital, Castle Island Ventures, and Coin Center.

During a 2017 House Financial Services hearing, Langalis raised the sign, leading to his removal from the building for rule violation. However, the image spread rapidly online.

Since then, Bitcoin's value has soared from about $2,700 in July 2017 to over $73,000 last month, partly due to significant U.S. developments, including the approval of spot Bitcoin exchange-traded funds earlier this year.

In conclusion, the recent Bitcoin auction showcased notable sales, including the iconic "Buy Bitcoin" sign, underscoring the cryptocurrency's evolving prominence in the financial landscape.