Conjecture reduction to a halting problem Updated +Created
bbchallenge.org/story#what-is-known-about-bb lists some (all?) cool examples,
wiki.bbchallenge.org/wiki/Cryptids contains a larger list. In June 2024 it was discovered that BB(6) is hard.
Cool data embedded in the Bitcoin blockchain / 503: Bitcoin over capacity Updated +Created
Starting tx a87d406fae047258a12923b3c11a797a5765bd8f868df5c7e9b1cead0e92c9c1: the message:
503: Bitcoin over capacity!
appears about 13 thousand times. WTF happened?
Cool data embedded in the Bitcoin blockchain / Illegal content of block 229k Updated +Created
These can be viewed at bitcoinstrings.com/blk00052.txt and are mostly commented on the "Wikileaks cablegate data" section of Hidden surprises in the Bitcoin blockchain by Ken Shirriff (2014).
Soon after block 229991 uploaded the Satoshi uploader, several interesting files were added to the blockchain using the uploader, and notably some containing content that might be illegal in certain countries, as a test to see if this type of content would make the Bitcoin blockchain illegal or not:
So basically, this was the first obviously illegal block attempt.
None of this content is particularly eye-popping for Ciro Santilli's slightly crazy freedom of speech standards, and as of 2021, the Bitcoin blockchain likely hasn't become illegal anywhere yet due to freedom of speech concerns.
Furthermore, it is likely much easier to find much worse illegal content by browsing any uncensored Onion service search engine for 2 minutes.
Ciro Santilli estimates that perhaps the uploader didn't upload child pornography, which is basically the apex of illegality of this era, because they were afraid that their identities would one day be found.
Bibliography:
Domains by Proxy Updated +Created
vCPU Updated +Created
2D continuous AI game Updated +Created
Abelian an non abelian anyons Updated +Created
Amazon EC2 HOWTO Updated +Created
apport-cli Updated +Created
Astera Institute person Updated +Created
Cat qubit Updated +Created
Football simulation Updated +Created
Bitcoin daemon Updated +Created
Runs just a headless Bitcoin server.
You can then interact with it via the Bitcoin CLI client.
On Bitcoin Core snap 26.0, the executable is called bitcoin-core.daemon rather than bitcoind
CIA 2010 covert communication websites / Reuters article Updated +Created
This is our primary data source, the first article that pointed out a few specific CIA websites which then served as the basis for all of our research.
We take the truth of this article as an axiom. And then all we claim is that all other websites found were made by the same people due to strong shared design principles of the such websites.
Covalent bond Updated +Created
Duke ARTIQ extensions Updated +Created
Electron configuration Updated +Created
File signature Updated +Created
Molecule Updated +Created

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