Cool data embedded in the Bitcoin blockchain / Protests against larger block sizes Updated +Created
Protesters were posting large chunks of text multiple times into the blockchain as a way to protest against the controversial increase of block size.
tx 08893442680a20c4d0548dec2c8c421fa43336528b4e274dbf2652774f9c9f2d has the first copy of:
I like big blocks and I can not lie
which is the first line of a parody on:
I like big butts and I cannot lie
from the Baby Got Back hip-hop song.
tx 52159222289cd0a5afe0644150d0e23d5d272a57365627d5e869fdb458289858 has the first copy of:
Time to roll out bigger blocks
which is likely a copy of an email from the bitcoin development mailing list. This message is repeated dozens of times in other transactions.
Condensed matter Physics bibliography Updated +Created
Conglomerate (company) Updated +Created
Congruent matrix Updated +Created
Two symmetric matrices and are defined to be congruent if there exists an in such that:
Conjecture Updated +Created
A conjecture is an open problem in mathematics for which some famous dude gave heuristic arguments which indicate if the theorem is true or false.
Conjugate gradient method Updated +Created
TODO application.
TODO speedup over algorithm for general matrices.
www.studentclustercompetition.us/ comments:
The HPCG benchmark uses a preconditioned conjugate gradient (PCG) algorithm to measure the performance of HPC platforms with respect to frequently observed but challenging patterns of computing, communication, and memory access. While HPL provides an optimistic performance target for applications, HPCG can be considered as a lower bound on performance. Many of the top 500 supercomputers also provide their HPCG performance as a reference.
Connectome Updated +Created
Connectome scale Updated +Created
A Drosophila melanogaster has about 135k neurons, and we only managed to reconstruct its connectome in 2023.
The human brain has 86 billion neurons, about 1 million times more. Therefore, it is obvious that we are very very far away from a full connectome.
Instead however, we could look at larger scales of connectome, and then try from that to extract modules, and then reverse engineer things module by module.
This is likely how we are going to "understand how the human brain works".
Copley Medal Updated +Created
royalsociety.org/grants-schemes-awards/awards/copley-medal/ says it is now open to international citizens, but having a quick look at the 2010 awards still suggests that it is very British centric, or at least anglophone centric, much like the society fellowship itself. That's likely the reason why the Nobel prize won, being much more international from the start.
Cool data embedded in the Bitcoin blockchain / Interesting AtomSea & EMBII uploads Updated +Created
tx e3e37ed5c1de2631c147bd39429e42ff634e95b7d72423bc32d6c6b9d8eef8ee (2014-07-01):
For my first official Journal entry I've decided to archive some old poetry. Here are a few of the computational poems I've created using cyphers.
Figure 1.
Shiemaa&Vincent.jpg
. Source.
Message:
"Even if we tried to do it on purpose, never would have we succeeded." My beloved Vincent.
TODO identify Shiemaa and Vincent.
Figure 2.
BikeLady.jpg
. Source.
This seems to be a novel work uploaded by its creator artist Allen Vandever according to EMBII.[ref].
Figure 3.
Arecibo_message.svg
. Source.
An "artificially" colored visualization of the Arecibo message ripped from Wikipedia: en.wikipedia.org/wiki/File:Arecibo_message.svg (with attribution).
The cool thing about this image is that it highlights the striking parallels between the encoding of the Arecibo message with crypto graffiti, because in both cases people were creating undocumented new ways of communicating with strangers on a new medium in those early blockchain days.
The associated message contains the Arecibo message as ASCII 0's and 1's. When properly cut at the newlines, they draw the message as ASCII art, as the original Arecibo encoding intends, here's a version with the 0's replaced by spaces to make it more readabale:
      1 1 1 1
  1 1     1 1       1
1   1   1   1  1 11  1
1 1 1 1 1 1 1 1  1  1

            11
          11 1
          11 1
          1 1 1
          11111

11    111   11    11
1             11  1
11 1   11   11    11 1
11111 11111 11111 11111

    1                 1

    1                 1
11111             11111

11    11    111   11
1       1         1
11 1    11   111  11 1
11111 11111 11111 11111

    1      11         1
          11
    1     11          1
11111     11      11111
          11
  1        1        1
    1      11       1
    11    11      1
      11   1    11
          11  11
      11   1    11
    11    11      1
    1      1        1
  1       11        1
  1        11        1
  1         1       1
  1       1       1
    1            11
    11        11
  1   111 1 11
  1       1
  1     11111
  1    1 111 1  1 11 11
      1  111  1  111111
1 111    111     11 111
          1 1     111 11
  1      1 1     111111
  1      1 1     11
  1     11 11

  111     1
  111 1 1   1 1 1 1 1 1
  111         1 1 1 1
              1 1
        11111
      111111111
    111       111
    11           11
  11 1         1 11
  11  11       11  11
  1   1 1     1 1   1
  1   1  1   1  1   1
      1   1 1   1
      1    1    1
      1         1
        1  1 1
  1111  11111 1  1111
Figure 4.
He sleeps in a temple.jpg
. tx 460ed23bea89176cdfe18e13fce51ad5386ad8e3e1f7d6f5b4711b3be97b0502 block 360565 (2015-06-12). EMBII claimed on Twitter that he took this photo in Auckland, New Zealand. The shop on the right corner has a sign that starts with "Bo" and searching for "Auckland Bo" gave us the "The body shop" on the corner of Queen Street and Darby Street. Some things changed between 2015 and 2024, notably the bench is gone and the shop on the left corner changed, but we can go back in time in Google Street View to 2015 which further confirms the location.
Figure 5.
PIA17563.jpg
. Source.
Associated message:
NASA: A purple nebula, in honor of #Prince, who passed away today. Image: Crab #Nebula, as Seen by Herschel and #Hubble Image credit: ESA/Herschel/PACS/MESS Key Programme Supernova Remnant Team; #NASA, ESA and Allison Loll/Jeff Hester (Arizona State University) #PIA17563
Figure 6.
Dr_Craig_Wright.jpg
. Source.
The image is present e.g. at: www.kitguru.net/channel/jon-martindale/australian-man-claims-he-is-satoshi-nakamoto-bitcoin-creator/ It was inscribed about two months after Craig publicly claimed that he is Satoshi.
This is a relatively unusual AtomSea & EMBII upload as it does not have the common toplevel transaction, everything, text + image fits into a single transaction. This is perhaps why the image is relatively low resolution to have a smaller size.
Figure 7.
YellowRobot.jpg
. Source.
Photography by EMBII, original art by TODO.
The associated message reads:
Chiharu and I found this little yellow robot while exploring Chicago. It will be covered by tar or eventually removed but this tribute will remain. N 41.880778 E -87.629210
This is one of Ciro's favorite AtomSea & EMBII uploads. This is the cutest thing ever, and perfectly encapsules the "medium as an artform" approach to blockchain art. More Chiharu stalking at: ILoveYouMore.jpg.
At twitter.com/EMBII4U/status/1615389973343268871 EMBII announced that he would be giving off shares of that image on a Bitcoin-based NFT sale system he's making called Sup!?, and in December 2023 gave 2/300 shares to Ciro Santilli. Amen. The transaction list can be seen on the web UI at: p2fk.io/GetObjectByAddress/1KUyhHLrK1ckY8W7Qu31h6gFkXoihWHMzi?mainnet=true&verbose=true It had unfortunately never sold as of 2025, the only activity was EMBII giving off some shares and two listings of 1/300 for 1 BTC. Poor EMBII!
Other possibly novel EMBII street photography:
Audio:
Cool data embedded in the Bitcoin blockchain / Incoming links Updated +Created
By others:
Cool data embedded in the Bitcoin blockchain / Interesting transactions Updated +Created
This is about transactions that are interesting not because of their inscriptions, but for some other reason, such as transaction size, etc.
Cool data embedded in the Bitcoin blockchain / IRC log dumps Updated +Created
tx 210000d1392bec2505d1289e5c39c2039204ff1ecf7eef55f973ccd3111003e1, block 360235 (2015-06-10) and the following transactions have transcripts of a very long developer chat starting with:
jgarzik: if you aren't near one of the consulates there are some companies that will charge you money to do it...
TODO purpose? The transcripts are interspersed with developers likely voting for project leadership, and commenting on Gavin.
TODO find original discussion location, these are almost certainly from one of the Bitcoin IRC channels.
Part of the goal of this dump is that the Bitcoin developers have a policy of not allowing logging on their talk channel, and this released it all to the blockchain forever where it cannot be deleted. These might just be more of protests against larger block sizes.
Copyright Updated +Created
Coronavirus Updated +Created
youtu.be/oCelMyMtRCk?t=167 mentions that they get their lipid layer from the Golgi complex of the host, where they replicate.
Cool data embedded in the Bitcoin blockchain / Software Updated +Created
GitHub is for newbs.
  • 50002f38a40aeca96f7d03ceac1c62fc233b44207af99df8f1daddf03f6ef61c via cryptograffiti.info contains a Python script that starts with:
    #!/usr/bin/env python3
    #
    # This file is placed in the public domain.
    #
    # CryptoGraffiti tool
    #
    # Requires python-bitcoinlib-v0.2.1
    #
    # https://github.com/petertodd/python-bitcoinlib
    #
    # pip install python-bitcoinlib
  • 209c9106c7261582f5d0907819c6e10dea670c273133047d911be41f8a42d86f via cryptograffiti.info contains a Base64 encoded Python script starting in:
    #!/usr/bin/env python
    # brainwallet "base58"
    # v2015-05-18, fixed Tor DNS problem
    import binascii
    import hashlib
    Some related ones:
    • 25658f625c8f3964593b9e3c632040cb69aea9cf24403af33ab173d7cba7c42f
    • 7d188bd499137b5a0d68271ef8a4f3c4dc2f2b38bd03dfc913cb2b0be15b1e0d

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