Ciro Santilli (@cirosantilli) - New articles

The #bitcoin channel on Freenode is "officially unlogged." That means we officially don't publish the logs anywhere, and if we find that logs are published somewhere, we ask that they be taken down

Some IRC logs were dumped into the Bitcoin blockchain at: IRC log dumps where they cannot be deleted.

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Bitcoin RPC command Updated 2025-07-16

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These are commands that e.g. the Bitcoin CLI client can make to the server.

bitcoincore.org/en/doc/22.0.0/rpc/rawtransactions/getrawtransaction/

The commands can be listed with:

bitcoin-core.cli help

and full help with:

bitcoin-core.cli help getrawtransaction

For example. to run the Bitcoin getrawtransaction command, first in one shell we start bitcoind:

bitcoin-core.daemon

and then on another shell:

bitcoin-core.cli getrawtransaction 75b431e0a8c4617ca8adefe593ba66aa30907742b6dc8772761bfe7edabd74b4 true

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Bitcoin script Updated 2025-07-16

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BitcoinStrings.com Updated 2025-07-16

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bitcoinstrings.com has all strings -n20 strings, we can obtain the whole thing and clean it up a bit with:

wget -O all.html https://bitcoinstrings.com/all
cp all.html all-recode.html
recode html..ascii all-recode.html
awk '!seen[$0]++' all-recode.html > all-uniq.html

awk to skip the gazillion "mined by message" repeats.

A lot of in that website stuff appears to be cut up at the 20 mark. As shown in Force of Will, this is possibly because they didn't use -w in strings -n20, and the text after the newlines was less than 20 characters.

That website can be replicated by downloading the Bitcoin blockchain locally, then:

cd .bitcoin/blocks
for f in blk*.dat; do strings -n20 -w $f | awk '!seen[$0]++' > ${f%.dat}.txt; done
tail +n1 *.txt

Remove most of the binary crap:

head -n-1 *.txt | grep -e '[. ]' | grep -iv 'mined by' | less

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bit gold Updated 2025-07-16

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Black-body radiation experiment Updated 2025-07-16

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The Quantum Story by Jim Baggott (2011) page 10 mentions:
Early examples of such cavities included rather expensive closed cylinders made from porcelain and platinum.
and the footnote comments:
The study of cavity radiation was not just about establishing theoretical principles, however. It was also of interest to the German Bureau of Standards as a reference for rating electric lamps.
1859-60 Gustav Kirchhoff demonstrated that the ratio of emitted to absorbed energy depends only on the frequency of the radiation and the temperature inside the cavity
1896 Wien approximation seems to explain existing curves well
1900 expriments by Otto Lummer and Ernst Pringsheim show Wien approximation is bad for lower frequencies
1900-10-07 Heinrich Rubens visits Planck in Planck's villa in the Berlin suburb of Grünewald and informs him about new experimental he and Ferdinand Kurlbaum obtained, still showing that Wien approximation is bad
1900 Planck's law matches Lummer and Pringsheim's experiments well. Planck forced to make the "desperate" postulate that energy is exchanged in quantized lumps. Not clear that light itself is quantized however, he thinks it might be something to do with allowed vibration modes of the atoms of the cavity rather.
1900 Rayleigh-Jeans law derived from classical first principles matches Planck's law for low frequencies, but diverges at higher frequencies.