What Is AOPP? And, Why Is The Bitcoin Community Up In Arms About It?
by Eduardo Próspero | Bitcoinist.com

The Address Ownership Proof Protocol or AOPP might’ve been the most sophisticated attack on Bitcoin so far. With a fairly benign protocol that only affected people in Switzerland, the powers that be infected some of the most respected wallets in the space. Only people who bought Bitcoin at Swiss centralized exchanges and were already fully KYC’d had to prove ownership of their wallet’s address, so it didn’t seem that bad. But it was.

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Quantum Computers Could Crack Bitcoin. Here’s What It Would Take

By |  SingularityHub

Quantum computers could cause unprecedented disruption in both good and bad ways, from cracking the encryption that secures our data to solving some of chemistry’s most intractable puzzles. New research has given us more clarity about when that might happen.

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BlackRock 2022 Letter to CEOs Highlights the Importance of Sustainability

By Latham & Watkins LLP | Lexology

On 17 January 2022, Larry Fink, the founder and chief executive of BlackRock, published his annual Letter to CEOs (the Letter), titled “The Power of Capitalism”. The Letter focuses on the importance of sustainability issues to companies from a financial perspective, and seeks to highlight the economic benefits of stakeholder capitalism.

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🌙 NASA - Best Photo from Last Week
The Colors of Water

Much like the sky, rivers are rarely painted one color. Rivers around the world appear in shades of yellow, green, blue, and brown—and subtle changes in the environment can alter their colors.

New research shows the dominant color has changed in about one-third of large rivers in the continental United States over the past 35 years.

The figure above shows data from a map of river color for the contiguous United States. The rivers are colored as they would approximately appear to the human eye. The map was built from 234,727 images collected by Landsat satellites between 1984 and 2018. The dataset includes 67,000 miles (100,000 kilometers) of waterways of at least 200 feet (60 meters) wide.

While is not unusual for rivers to change colors over time due to fluctuations in flow, concentrations of sediments, and the amount of dissolved organic matter or algae in the water, scientists have found that the most extreme changes often occur near man-made reservoirs. Around 56 percent of rivers were dominantly yellow over the course of the investigation, and 38 percent were dominantly green.

Want more? Read Amazing Earth: Satellite Images from 2021

Image Credit: NASA Earth Observatory image by Joshua Stevens, using data courtesy of Gardner, J., et al. (2020).

Last Updated: Jan 26, 2022
Editor: Yvette Smith

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