Software Preservation Network

The Software Preservation Network has two major interrelated achievements under its belt already:

• Best Practices in Fair Use for Software Preservation
• A Preservationist's Guide to the DMCA Exemption for Software Preservation

Below the fold I look at both of them.

Blockchain: What's Not To Like?

I gave a talk at the Fall CNI meeting entitled Blockchain: What's Not To Like? The abstract was:

We're in a period when blockchain or "Distributed Ledger Technology" is the Solution to Everything™, so it is inevitable that it will be proposed as the solution to the problems of academic communication and digital preservation. These proposals typically assume, despite the evidence, that real-world blockchain implementations actually deliver the theoretical attributes of decentralization, immutability, anonymity, security, scalability, sustainability, lack of trust, etc. The proposers appear to believe that Satoshi Nakamoto revealed the infallible Bitcoin protocol to the world on golden tablets; they typically don't appreciate or cite the nearly three decades of research and implementation that led up to it. This talk will discuss the mis-match between theory and practice in blockchain technology, and how it applies to various proposed applications of interest to the CNI audience.

Below the fold, an edited text of the talk with links to the sources, and much additional material. The colored boxes contain quotations that were on the slides but weren't spoken.

Irina Bolychevsky on Solid

Although I'm an enthusiast for the idea of a decentralized Web, I've been consistently skeptical that the products proposed to implement it have viable businesses. Two months ago, in How solid is Tim’s plan to redecentralize the web?, Irina Bolychevsky (@redecentralize founder and self-described "product person") made related points. Below the fold, some commentary.

Selective Amnesia

Last year's series of posts and PNC keynote entitled The Amnesiac Civilization were about the threats to our cultural heritage from inadequate funding of Web archives, and the resulting important content that is never preserved. But content that Web archives do collect and preserve is also under a threat that can be described as selective amnesia. David Bixenspan's When the Internet Archive Forgets makes the important, but often overlooked, point that the Internet Archive isn't an elephant:

On the internet, there are certain institutions we have come to rely on daily to keep truth from becoming nebulous or elastic. Not necessarily in the way that something stupid like Verrit aspired to, but at least in confirming that you aren’t losing your mind, that an old post or article you remember reading did, in fact, actually exist. It can be as fleeting as using Google Cache to grab a quickly deleted tweet, but it can also be as involved as doing a deep dive of a now-dead site’s archive via the Wayback Machine. But what happens when an archive becomes less reliable, and arguably has legitimate reasons to bow to pressure and remove controversial archived material?
...
Over the last few years, there has been a change in how the Wayback Machine is viewed, one inspired by the general political mood. What had long been a useful tool when you came across broken links online is now, more than ever before, seen as an arbiter of the truth and a bulwark against erasing history.

Below the fold, some commentary on the vulnerability of Web history to censorship.

Certificate Transparency

Today is 2018's World Digital Preservation Day. It might appear that this post has little to do with digital preservation. However, I hope that the long post below the fold is the start of a series asking the simple question underlying not just digital preservation, but many areas of the digital world, "how do I know this digital content is real?" It is another of the many problems for which blockchain is touted as a solution by people lacking real-world understanding of either the problem or the technology, or both.

Cryptocurrency Collapse

Bitcoin 2-year "price" history

In the second half of last year Bitcoin experienced a massive pump-and-dump. The (heavily manipulated) "price" was pumped from under $2K in mid-July to almost $20K in mid-December. Then came the dump. Hannah Murphy's Bitcoin: Who really owns it, the whales or small fry? reports, based on data from Chainalysis, that in the dump phase:

longer-term holders sold at least $30 billion worth of bitcoin to new speculators over the December to April period, with half of this movement taking place in December alone.

“This was an exceptional transfer of wealth,” says Philip Gradwell, Chainalysis’ chief economist, who dubs the past six months as bitcoin’s “liquidity event”.

This dump drove the "price" down to the mid-$6K region by mid-June, where it stayed until mid-November. But in the last two weeks, things have become "dynamic". At 4pm yesterday on Coinbase the price of a bitcoin was $3718.96. It has lost more than 80% of its value this year. Below the fold, I look at why this might have happened.

John Wharton RIP

My friend John Wharton died last Wednesday of cancer. He was intelligent, eccentric, opinionated on many subjects, and occasionally extraordinarily irritating. He was important in the history of computing as the instruction set architect (PDF) of the Intel 8051, Intel's highest-volume microprocessor, and probably the most-implemented instruction set of all time, and as the long-time chair of the Asilomar Microcomputer Workshop. I attended AMW first in 1987, and nearly all years since. I served on the committee with John from 2000 through 2016, when grandparent duties forced a hiatus.

On hearing of his death, I thought to update his Wikipedia page, but found none. I collected much information from fellow Asilomar attendees, and drafted a page for him, which is has been published. Most of the best stories about John have no chance of satisfying Wikipedia's strict standards for sourcing and relevance, so I have collected some below the fold for posterity.