Ciro Santilli @cirosantilli 37

Mt. Gox was the first Cryptocurrency exchange in existence, and when it shutdowon in Febrauary 2014 because the website was crap and they got hacked, some people were not happy at all about their missing funds!

tx 0540b5dda23ee870330c6b1e18a88c592cf8d847c47f1dc1d5328f46115b12b3 (2014-02-25)

2014-02-25: The day Mt.Gox shut down. Farewell, may even you rest in peace!

tx 2374f8575f65763caf6909551c131d3ae45399a73aee638bcbccaebdb1219d67 (2014-02-25):

Fuck you MtGox
Fuck you MtGox
R

tx c00a4a04905a2e8d8dee8a768165aa6bdf842413a8a648462a6349db89cd77f2 (2014-02-27) has an ASCII art of a seal, TODO understand meme:

        o
      / |
      | \
  .   |  |
.'\`  | \|
  | \_/ \ \
  \____/\/
<3 You Seals!

There are also a few Base58 messages referring to Mt Gox, the nicest and most expensive one being to burn addres:

1FuckMtGoxFFFFFFFUUUUUUUUUUQXW5ik

which as of 2025 holds 0.014537 BTC burnt on:

14x 0.001 BTC transactions starting at tx b170551d4df68d714fa98189c73f61b0c2bc54cafe33a2953fcc0bc11f6aa72a block 287826 (2014-02-26)
plus one 0.001337 BTC transaction in the middle at tx 6b878716d1d9af0f50de441f318da68121261a5778fd541def4408c0aac531f6 block 287868 (2014-02-26), why not.

Many of these transactions also contain other quick messages, e.g.:

tx e6d4cfbbc45b5e3cfcfa36613b04a8732c7b4606f5dbbd8af3ba06d8f3899fc2 also features a Rickrolling instance.
tx 10a9bb0625447df044410cf9cd74742ec0bf334d48b4b1f93c10a4a60748bb5d also features Nigger inside a spendable vanity address: 1Niggerw15VezU6rA7jRBuJt9ceg9VL1jh

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g4ad.xlarge Updated 2025-07-16

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AMD GPUs as mentioned at: aws.amazon.com/ec2/instance-types/g4/

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GNOME Display Manager Updated 2025-07-16

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F2Pool Updated 2025-07-16

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www.f2pool.com/

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Cool data embedded in the Bitcoin blockchain / Other blockchains Updated 2025-07-16

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Namecoin
- nmc.vision/ by x.com/punk3606 is basically the same as this project but for Namecoin: the dude is trying to make database with all namecoin inscriptions ever.
- "Quantum" is an image created by artists Jennifer and Kevin McCoy which Kevin embedded on Namecoin in 2014. As such, it is a relatively early example of inscription. On June 2021 it sold for more than one million dollars at an auction at Sotheby's to NFT collector sillytuna. Bibliography:
  nftnow.com/art/quantum-the-first-piece-of-nft-art-ever-created/
Ethereum
- reidjs.medium.com/top-6-weird-innovative-and-hilarious-findings-in-the-ethereum-blockchain-83dbbca461ca Top 6 Weird, Innovative, and Hilarious findings in the Ethereum Blockchain by Reid Sherman (2018)
Monero: as of January 2024, Ciro downloaded the blockchain and strings -n20 -s didn't seem to have not even a single ASCII art, it is quite sad. Bibliography:

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Cool data embedded in the Bitcoin blockchain / Quotes and threes Updated 2025-07-16

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Starting tx 2f201c8518c7b012c03c2c82e40e86f6aaf616ea5fbe22570aac9d2c6611cb68 (2023-03-11), the chain is flooded with ASCII transactions containing many repeated double quotes " and digits 3, with some other characters interspersed in them without any clear pattern e.g. the first one:

""""""""""""""""""""""""""""""""jk""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""'}""""""""""""""""""""""""""""""""/D""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""q1""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""XK""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""

TODO what is up with that?

In that first trasaction the quotes appear as part of a multisig output script.

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Normalized DFT Updated 2025-07-16

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There are actually two possible definitions for the DFT:

1/N, given as "the default" in many sources:
$x_{n} = \frac{1}{N} \sum_{k = 0}^{N - 1} X_{k} e^{i 2 π \frac{kn}{N}}$
(1)
$1/ N$ , known as the "normalized DFT" by some sources: www.dsprelated.com/freebooks/mdft/Normalized_DFT.html, definition which we adopt:
$x_{n} = \frac{1}{N} \sum_{k = 0}^{N - 1} X_{k} e^{i 2 π \frac{kn}{N}}$
(2)

The

1/ N

is nicer mathematically as the inverse becomse more symmetric, and power is conserved between time and frequency domains.

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Yohei Nakajima Updated 2025-07-16

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He does lots of little experiments which is cool.

No research papers but has citations: www.yohei.me/publications which is cool.

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Amit Singhal Updated 2025-07-16

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Unfortunately accused of sexual misconduct: www.theguardian.com/technology/2019/mar/11/google-executive-payout-harassment-amit-singhal. But one can still do good despite our defects:

Pitched OurBigBook.com to him:

Idea: make all Sitare University materials open, and allow students to write the content
Also, allow anyone to take the exams without enrolling (possibly for a fee if they don't have scholarship).
This is the way to go if you really want to increase your impact/dollar and do something truly innovative that ill make a mark. Why just mirror existing university models that haven't yet caught up to the Internet Age?

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Knowledge graph Updated 2025-07-16

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Many people believe that knowledge graphs are a key element of AGI: Knowledge graph as a component of AGI.

Bibligraphy:

www.knowledgegraph.tech/ The Knowledge graph Conference

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Matthew Heaney Updated 2025-07-16

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github.com/matthewjheaney

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Tor.link Updated 2025-07-16

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tor.link/

Live January 2024.

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OurBigBook topic feature Updated 2025-07-16

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More info at: docs.ourbigbook.com#ourbigbook-web-topics

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Monero mining Updated 2025-11-05

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Cosmic microwave background anisotropy Updated 2025-07-16

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There is a slight variation in temperature of CMB across the sky of the order of 200 microKelvin. It is small to the ~2.7 K average temperature, but it can be measured.

If the initial conditions of the Big Bang and the laws of physics were perfectly symmetric, then we could expect the universe to just be one perfectly uniform boring soup.

But instead some asymetry made all the fun weird things we see today happen eventually, like galaxies and life.

And the cosmic microwave background serves as a way for us to look back in time to the early conditions of the universe, as it was set in stone as soon as the universe became transparent to this light during recombination.

Or if you want to get poetic, it is the closest we can ever get to listening to the original word of God when he setup the initial conditions of the universe.

The ansiotropies of CMB is the ultimate astronomical compass we will ever have, as it is the thing with the least proper motion.

Figure 1.
Cosmic microwave background anisotropy measured by the Wilkinson Microwave Anisotropy Probe
. Source.

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Cool data embedded in the Bitcoin blockchain / Cursed ordinal Updated 2025-07-16

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These were ordinals that were only indexed in later versions of the script. So to prevent changing the useless indices of existing ordinals, they gave them negative numbers.

The word "cursed" is a meme from the 2010/20s, e.g. knowyourmeme.com/memes/cursed-images--2.

Some examples:

ordinals.com/inscription/4b9a822a057743813efbefa0dd21d0a01342ee793ce2ce5bd499a5f262187553i0 first inscription with no mime type.
ordinals.com/inscription/2fa287270e4203ca2fc9f82ea3de7a0f7b785875791a76387ef6f4ccbb54eee2i0 is -38:
Hello World, this is a Rust Taproot test
is bugged because it is missing the mime type, on Python:
```
[b"'a\xf9\x19X%\xa8Q\x87SP\xe5\xf2H\xa6\xeew\x0e\x81\xa5hl\xcd\xaa\x97e\xfeqJ\x16\x12?", OP_CHECKSIG, 0, OP_IF, b'ord', 1, b'text/plain', 0, b'Hello World, this is a Rust Taproot test\xe2\x80\xa6', OP_ENDIF]
```
because the 1 should instead be b'\x01.

Bibliography:

decrypt.co/212908/mysterious-ordinals-inscription-teases-cursed-bitcoin-art-project

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