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bb41a757f405890fb0f5856228e23b715702d714d59bf2b1feb70d8b2b4e3e08 999,657 bytes. Joins a bunch of tiny inputs into a single output
623463a2a8a949e0590ffe6b2fd3e4e1028b2b99c747e82e899da4485eb0b6be and 5143cf232576ae53e8991ca389334563f14ea7a7c507a3e081fbef2538c84f6e both have 3,075 outputs of 1 satoshi each and a single input. We were not able to identify any meaningful data in it, file just says data, and there aren't long ASCII strings. However, the outputs were unspent as of 2021, which suggests that they might actually be data.

Analysis of some of them follows.

dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 has 13107 with payload 256KB in size, but some of them at least have been spent: www.blockchain.com/btc/tx/dd9f6bbf80ab36b722ca95d93268667a3ea6938288e0d4cf0e7d2e28a7a91ab3 therefore it's not data. file says their payload is a DOS executable, but it must be a coincidence

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Cool data embedded in the Bitcoin blockchain / Interesting transactions by

Ciro Santilli 40 Updated 2025-07-16

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This is about transactions that are interesting not because of their inscriptions, but for some other reason, such as transaction size, etc.

github.com/kristovatlas/interesting-bitcoin-data

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Cool data embedded in the Bitcoin blockchain / China by

Ciro Santilli 40 Updated 2025-07-16

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China stuff is mentioned at: cirosantilli.com/china-dictatorship/bitcoin-blockchain.

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Cool data embedded in the Bitcoin blockchain / Politics by

Ciro Santilli 40 Updated 2025-07-16

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Cool data embedded in the Bitcoin blockchain / Rickrolling by

Ciro Santilli 40 Updated 2025-07-16

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Rickrolling lyrics were mined several times into the blockchain.

The first currently known instance is as a link right during the prayer wars on block 142573 (2011-08-25) as the miner message:

Militant atheists, bit.ly/naNhG2 -- happy now?"

which redirects to www.youtube.com/watch?v=mGDuExhS6Nw&blockchain

Around block block 246k (e.g. 27b7c526489dac8245747fa1c425a2e3eb07dea57b294eb4ae583fec9b859fcf, 2013-10-17) we note several transactions starting with a XML format <CG SZ="1156"><MG>... the first one being 0b4efe49ea1454020c4d51a163a93f726a20cd75ad50bb9ed0f4623c141a8008 As mentioned not very clearly at www.righto.com/2014/02/ascii-bernanke-wikileaks-photographs.html#ref12 the content of the first <MG><payload></MG> is a Base64 encoded string

Catagory: Poetry
Title: Never Gonna Give You Up
Performer: Rick Astley
Writer: Mike Stock, Matt Aitken, Pete Waterman
Label: RCA Records

followed by lyrics also base64 encoded as part of the XML metadata. Hidden surprises in the Bitcoin blockchain by Ken Shirriff (2014) was not able to identify the exact format either. At twitter.com/EMBII4U/status/1655831533750562816 EMBII mentions that this was part of an upload test.

tx d29c9c0e8e4d2a9790922af73f0b8d51f0bd4bb19940d9cf910ead8fbe85bc9b (2013-11-13) contains a plaintext Rickroll lyric in an output script via OP_RETURN.

tx 15b11e8d4e5b9425f024b381ba0cb7a54a35e52389bb4855f505772ce685b39c (2014-06-24): starting from this transaction, the lyrics were inscribed several times via input scripts. Then again:

8bb9db70e24202fdfd0e48b57a11a407e6c8c0e76d879634b801b4345b8810b2
b881afa519804a3c93a3c99481517ca8ae070b84c04e8e7a2bfb808e043f9771
70c8405bd0ec10bea49b78a819dfbf46c1082e7e620588f9da65a90b71e52bbd
fc4e382793757858bec4b87527caa4bf2e6f71bb2f5a77bb41a45ddb9ed9d409
f011e71b711aa54a0c824244fff83fb8b1e1921804624fa0523a6e61612b7f6f
a8691cdbca5b82e4e48812e48b7a09e4757801fd3909a09975de957d1bfb52dc
d8946aa464be464674bba6d15729d75572ec75dda49fe7ff0ede1a25ca054941
d02864cd57c9d041dbd9d6f24327f347b92697a8bc3c86cdf8b738063c6ad002
9b78962d840f1ff681e5042264e4d0359cda98ce49d97569df14ce956622b966
7bdc22fb35f0a8eb6241782a306a8904fb6f793126ff106a04a96f9f223cb8e1
e24a4085c54a6362e615f8eab758c12d80e488b73757e6d2b8ab6bfc8be7007e
4257f4980955d8376ee1c6bccb4396da726e4ae13d758e47dc4e0775019723f5
a09b49e9374d43386a6a986944e3dcf515c7e1c38324836df5333b8adbe57797
03096688dbb874f7c571691e4241a298284bf4184be339b148f1b48f383a1d7c
62f8b228b6126354736d36d9f3b91882bb81eca7702b74fba6471abc7db96a03 (2015-09-30)

They were mega obnoxious!!! Who does this kind of crap for more than one year!!!

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Cool data embedded in the Bitcoin blockchain / 503: Bitcoin over capacity by

Ciro Santilli 40 Updated 2025-07-16

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Starting tx a87d406fae047258a12923b3c11a797a5765bd8f868df5c7e9b1cead0e92c9c1: the message:

503: Bitcoin over capacity!

appears about 13 thousand times. WTF happened?

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Cool data embedded in the Bitcoin blockchain / Mt. Gox' shutdown by

Ciro Santilli 40 Updated 2025-07-16

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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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Linear function by

Ciro Santilli 40 Updated 2025-07-16

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The term is not very clear, as it could either mean:

a real number function whose graph is a line, i.e.:
$f (x) = a x + b$
(1)
or for higher dimensions, a hyperplane:
$f (x_{1}, x_{2}, \dots, x_{n}) = c_{1} x_{1} + c_{2} x_{2} + \dots + c_{n} x_{n} + b$
(2)
a linear map. Note that the above linear functions are not linear maps unless $b = 0$ (known as the homogeneous case), because e.g.:
$f (x + y) = a x + a y + b$
(3)
but
$f (x) + f (y) = a x + b + a y + b$
(4)
For this reason, it is better never to refer to linear maps as linear functions.

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Cool data embedded in the Bitcoin blockchain / ASCII porn by

Ciro Santilli 40 Updated 2025-07-16

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All found so far are also reproduced at: asciiart.website/index.php?art=people/naked%20ladies therefore not blockchain original.

Some of the very first ASCII art present in the blockchain besides BitLen is porn. Surprising?

tx 9206ec2a41846709a59cafb406dd7b07082bfc27664bbc5c6d4df310c1e1b91f block 290848 (2014-03-16) via cryptograffiti.info: sexually aroused naked woman sitting looking forward with legs open showing her vagina. Vagina row as an identifier for Ctrl + F:
```
.     `.    .\x./-`--...../'   ;   :
```
A bit bellow tx 8367a48e4a863e37b3749bc9c111327b07a7c383ec9b3e7ce8d41949e71e1c10 has a large hand showing the middle finger and wearing a watch:
```
         /"\
        |\./|
        |   |
        |   |
        |>~<|
        |   |
     /'\|   |/'\..
 /~\|   |   |   | \
[   |   |   |  |   \
|   |   |   |   |   \
| ~   ~   ~   ~ |`   )
|                   /
 \                 /
  \               /
   \             /
    |--//''`\--|
    | (( +==)) |
    |--\_|_//--|
```
Reproduced e.g. at: www.textartcopy.com/ascii-middle-finger.html
tx 0aab36554c2ac5ec23747e7f21f75dbe3f16739134cf44953ad7ac98927146d6 block 322920 (2014-09-28) via cryptograffiti.info: naked woman laying on her side showing her vagina from under her legs, signed fsc. Vagina row:
```
             `-:/"-7.--""            _::.-'P::..    \}
```
Fully reproduced e.g. at www.asciiart.eu/people/sexual/women which credits the art to a "Marcin Glinski" (Polish: Marcin Gliński), possibly this dude github.com/silentlamb/ASCII-Arts | www.linkedin.com/in/marcinglinski)
You may use any of them for any purpose, as long as my signature (fsc) stay untouched.
The signature is also listed at www.asciiart.eu/ascii-artists/who-is-who for example.
tx 66826fccef3e3ebb34abce25bfeff8f9dcaaf88e4707a5576c494d8a1cf1681a block 388714 (2015-12-16) has a one liner penis and breasts:
```
jEW B====D ( . Y . )
```
soon followed by more breasts at 37c1e90c6ce3e648c51bfa38cbb43e996cd46e038517596d4c90ca2a6425a701:
```
jEW ( . Y . )TIDDIES( . Y . )
```
Found by Messages from the mines.

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Cool data embedded in the Bitcoin blockchain / Porn by

Ciro Santilli 40 Updated 2025-12-01

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For now we are going to keep this site porn-free and only link to prevent bad things from happening, as it might violate GitHub porn policy depending on how it is hosted, and Google may dislike it. Video "What is more obscene: sex or war? scene from The People vs. Larry Flynt".

If illegal porn were to ever be found, we would be unable to acknowledge that, and would just have to silently remove it. Of course, the reproducible nature of Bitcoin Inscription Indexer means that anyone who regenerates the data would immediately see such entries in the diff.

Another issue is that it can be quite hard to determine if porn is legal or illegal, e.g. it can be hard to distinguish legal an illegal ages or revenge vs consensual porn, especially at the low resolutions that you may expect to find embedded in the blockchain. We are generally going to be quite strict about this, and in case of uncertainty on porn legality we will censor first.

OK the list:

tx 4c903a377addab7c1e35a685d3dabc664199e406374b1e5ce2fc59e78fb5b754 (2016-07-09) contains an animated GIF of a woman pole dancing. She is seen from behind, in revealing blue clothes that show her buttocks. Reproduced at: twitter.com/cirosantilli/status/1755378949117370668. The file contains the following strings embedded into it:
This GIF file was assembled with GIF Construction Set from:
Alchemy Mindworks Inc.
This comment block will not appear in files created with a registered version of GIF Construction Set
and:
Cryptograffiti.info messages now cheaper.

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Cool data embedded in the Bitcoin blockchain / Illegal content of block 229k by

Ciro Santilli 40 Updated 2025-07-16

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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:

tx 08654f9dc9d673b3527b48ad06ab1b199ad47b61fd54033af30c2ee975c588bd block 229999 contains a leaked private key and a link to: threatpost.com/en_us/blogs/ami-firmware-source-codAe-private-key-leaked-040513
tx b96af3b69b48a82c5eae3e44ebb6ef93f30d7764b1d5b40243e11b0d374ac1b7 block 230001 contains the link:
en.wikipedia.org/wiki/Illegal_prime
followed presumably by one such prime starting with:
4 85650 78965 73978 29309 84189 46942 86137 70744 20873 51357 92401 96520 73668
The number is quoted e.g. at: www.computerforum.com/threads/illegal-prime-number.67782/
- tx 237783998a6799264983150187a73ab6d116f2ba78d3e1f88529e95229f59d67 block 233620 contains another illegal prime starting with:
49310 83597 02850 19002 75777 67239 07649 57284
This one is quoted in a few places online in blockchain illegality discussions:
- www.reddit.com/r/Bitcoin/comments/1akyy4/comment/c8yel60 "What happens if someone inserts illegal content into the block chain?" (2013-03-19)
- news.ycombinator.com/item?id=8055243 "Filecoin – Data storage network and crypto-currency based on Bitcoin" (2014-07-18)
tx 54e48e5f5c656b26c3bca14a8c95aa583d07ebe84dde3b7dd4a78f4e4186e713 block 230009 contains the Bitcoin white paper: bitcoin.org/bitcoin.pdf More context: bitcoin.stackexchange.com/questions/35959/how-is-the-whitepaper-decoded-from-the-blockchain-tx-with-1000x-m-of-n-multisi
tx 691dd277dc0e90a462a3d652a1171686de49cf19067cd33c7df0392833fb986a block 230203 Cablegate index. The announced filename is cablegate-201012041811.7z. As mentioned in Hidden surprises in the Bitcoin blockchain by Ken Shirriff (2014), it has an ASCII list of several other transactions, which presumably when downloaded with the Satoshi uploader can concatenated lead to the full 7z file. Also as mentioned by Ken, it is infinitely easier for the average user to just access the cables directly on WikiLeaks :-) The data is preceded by the message:
```
sSEXWikileaks Cablegate Backup

cablegate-201012041811.7z

Download the following transactions with Satoshi Nakamoto's download tool which
can be found in transaction 6c53cd987119ef797d5adccd76241247988a0a5ef783572a9972e7371c5fb0cc

Free speech and free enterprise! Thank you Satoshi!
```
tx dde7cd8e8f073a525c16c5ee4e4a254f847b7ad6babef257231813166fbef551 block 230229 and tx 4a0088a249e9099d205fb4760c28275d4b8965ac9fd56f5ddf6771cdb0d94f38 block 230231 contain indexes of pages from The Hidden Wiki. These can be viewed at: bitcoinstrings.com/blk00052.txt. Not reproduced here because we are cowards.

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:

bitcointalk.org/index.php?topic=191039.0 "WTF - Kiddy Porn in the Blockchain for life?" (2013-04-29) on the Bitcoin Forum

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Chronic disease by

Ciro Santilli 40 Updated 2025-07-16

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Intelligent design by

Ciro Santilli 40 Updated 2025-07-16

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The exact opposite of argument from poor design!

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Cool data embedded in the Bitcoin blockchain / Prayer wars by

Ciro Santilli 40 Updated 2025-07-16

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Starting at tx cbbaa0a64924fe1d6ace3352f23242aa0028d4e0ff6ae8ed615244d66079cfb1 (2011-08-05), Catholic Bitcoin developer Luke Dashjr started to inscribe prayers in the miner messages of his mining pool "Eligius pool", usually one verse per message.

Figure 1.
Saint Eligius by Petrus Christus
. Source. Off-chain image for illustration. Eligius pool is named after Saint Eligius, patron of goldsmiths and miners^[ref]

These are some of the earliest inscriptions in the blockchain, and therefore extremelly visible.

Although the prayer verses appear contiguous in ASCII dumps, Eligius was not actually mining every block: it is just that in those early days, miners still hadn't started adding advertisement messages to every block, so only Eligius shows up and appears contiguous.

At some point, opponents noticed these messages, and started adding atheist mockery graffiti replies, which appear interspersed in ASCII dumps with the prayer.

The first prayer is the Latin version of the Divine Praises, a Catholic prayer composed in 1797 in Italian by Luigi Felici for the purpose of making reparation after saying or hearing sacrilege or blasphemy. Luke claims he was referring to anything in particular that came prior in the blockchain: twitter.com/LukeDashjr/status/1749182637569122434. There arent many earlier inscriptions at all to refer to in any case! The prayer and correspondong interrupts (in transaction outputs, not by other miners) ordered by block are:

139690 (2011-08-05) prayer: "Eligius/Benedictus Deus. Benedictum Nomen Sanctum eius."
139717 prayer: "Eligius/Benedictus Deus. Benedictum Nomen Sanctum eius.'
139758 interruption: ***************************************************. This is not a Coinbase message: www.blockchain.com/explorer/transactions/btc/23befff6eea3dded0e34574af65c266c9398e7d7d9d07022bf1cd526c5cdbc94. This Bitcoin input script appears to spend a standard P2PKH output, but it first adds an extra value to the stack which contains the ***.
139792 prayer: "Benedictus Iesus Christus, verus Deus et verus homo.'
139831 prayer: "Benedictum Nomen Iesu.'
139838 (2011-08-06) interruption: "I LIKE TURTLES" (tx 78eb16507b3d3df615e3b474e853db4667f4b11954ec6d918b1ded0fca7ad25a)
138898 prayer: "Benedictum Cor eius sacratissimum."
139904 prayer: "Benedictus Sanguis eius pretiosissimus."
139921 prayer: "Benedictus Iesus in sanctissimo altaris Sacramento."
139942 prayer: "Benedictus Sanctus Spiritus, Paraclitus."
139954 interrupion: "aC-C-C-COMBO BREAKER" (tx 138c024a76df99ecafd2236d5429cf574b7778a3c6508bd83f116c832f3c6980)
139960 prayer: "Benedictus Sanctus Spiritus, Paraclitus."
139977 prayer: "Benedicta excelsa Mater Dei, Maria sanctissima."
139990 (2011-08-06) prayer: "Benedicta sancta eius et immaculata Conceptio."

Then comes:

140181 Latin Trinitarian formula
In nomine Patris et Filii et Spiritus Sancti. Amen.
Act of Contrition
Act of Hope

and various others + output message interruptions.

Then at last come the first miner message interruptions. Luke explained on Twitter ^[ref] that they were also made by Eligius pool, as there was a system in which contributors besides Luke could submit their own strings:

142547: (2011-08-25) tx 8e1e44a48b5e79636675d1476f8e4add075bbeb7f49e00ec743eed56f17feaaa A yandere game is starting in 60 seconds! Please type "]yandere" to join. Yandere Simulator comes to mind, but it can't be because that was pitched 2014.
142550: "A yandere game is starting in 60 seconds! Please type "]yandere" to join."
142573: (2011-08-25) "Militant atheists, bit.ly/naNhG2 -- happy now?". A Rickrolling link. Perhaps one of the fist.
142596: (2011-08-25) "<cjdelisle> ran out of prayers?! That explains the price drop.". Possibly quoting this dude on som twitter.com/cjdelisle Bitcoin IRC channel givesn the <USERNAME> format?
142640: "an de ti go su by ra me ni ko hu vy la po fy ton": Tonal system numerals. Interesting.

followed by more prayers and interruptions such as tx ec92d245822fa1ff862f3314b9102f36fe1eb8bc055865674c75323540aedef6:

FFS Luke-Jr leave the blockchain alone!
Oh, and God isn't real

The last Luke prayer appears to be on block 143822 (2011-09-03)

... the Lord of the harvest, that he send forth labourers into his harvest.

Then there is a bit of radio silence, until finally Slush Pool started self advertising for the first time on block 163970 (2012-01-26):

/P2SH/BIP16/slush/R,

They had been mining for a long time by then (December 2010 according to en.bitcoin.it/wiki/Slush_Pool), but this is when they decided to add a human readable ASCII message as well.

From then on, miner messages would be forever polluted with ads, and Luke's multi-miner message feat would never again be reproduced.

The non-obvious interruptions are all well known memes/anime references:

"I like turtles": knowyourmeme.com/memes/i-like-turtles
Combo breaker: knowyourmeme.com/memes/combo-breaker
"Yukkuri Shiteitte ne": knowyourmeme.com/memes/yukkuri-shiteitte-ne
"kLhLUKE-JR IS A Pedophile! Oh, and God isn't real, sucka. Stop polluting the blockchain with your nonsense.", tx 9740e7d646f5278603c04706a366716e5e87212c57395e0d24761c0ae784b2c6, block 141460
"Help me, ERINNNNNN!!": touhou.fandom.com/wiki/Lyrics:_Help_me,_ERINNNNNN!!
"EASY MODO? How lame!F?": knowyourmeme.com/memes/kimoi-girls

Bibliography:

2011-08-19 bitcointalk.org/index.php?topic=38007.0 "Eligius miners aware of prayers in block headers?" from on bitcointalk.org by user "Graet" who quotes prior discussion from a Bitcoin IRC channel:
<luke-jr> cosurgi: by design, it contains "random" data-- I've just been setting some of that "random" data to prayers
<Graet> mm interesting luke-jr i understand you are strong in your faith but you dont think putting prayers in might alienate some ppl - after all btc is multidenominational
<luke-jr> Graet: Catholics do not believe in freedom of religion.
<Graet> and you make your non catholic miners aware of this?
2011-11-02 bitcointalk.org/index.php?topic=52979.0 "Mysterious transaction spotted in blockchain!"

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Amazon S3 by

Ciro Santilli 40 Updated 2025-07-16

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Cool data embedded in the Bitcoin blockchain / Encrypted data by

Ciro Santilli 40 Updated 2025-07-16

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Transactions such as tx fe37c7eee73be5fda91068dbe0eb74a68495a3fc7185712b8417032db7fc9c5e (2015-01-15) starting with

U2FsdGVkX1/4iSjLxQ5epo8eRSCOQLGgAsn1CucGii27k8ZyC7Jz6wxhYcevVmxi
6Q4ZFN04WDN0UhKqYardgQf26oeBMURupduDd0ZozxlgMrBkFOCaARqU7RABVWDO
/ruPUcOY0VC8p4lrMNqSdqvN7y6OWwOSH3c0duumZfFNZs9+BbtKCxtaqR5+RkUI

are Base64 encoded. Running them through base64 -d leads to starting output bytes Salted__ which as mentioned at security.stackexchange.com/questions/124312/decrypting-binary-code-from-a-base64-string is OpenSSL encrypted data. So hwerever we see the start:

U2FsdGVkX1/

we might as well give up. That string appears 26 times in our data currently, between 6c091e6152b83ec0df8d0d87c7c5f3da72a3328ed3a5d91768ba0ab899c16b9d (2014-09-28) and 84189c82995db355e92e37f8cfe8a9274e9a5d157f1f1658067672e707469a09 (2019-07-06)

The following via cryptograffiti.info get marked by file as "openssl enc'd data with salted password, Base64 encoded":

ad3d8a0a5d57114b1780341cb5104284f029bb01b1b3558f7c7b9ce51eb67e18
1cd0c631f444d664601468f644b70e0166019a54d8678de51310139b6c8b2bd7
ccc3fb2c9cb1c640b76645a8658693066fd63433ab17c318691ad5bd62601c0e
e6eb0cb8268a9b3d012d2957b32d4b28ccc3317593f54f4bfe4b387326588bd2
c40e322b198b715accc4a67fad244ed131b8cef0785070e06d10d56c4ab389f2
37a261ac6dbf59e3c9673a22028bcdbdd08926a9d32134ab8fba0897f6dcd196
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blockchain.news/news/mysterious-bitcoin-inscriptions-a-puzzle-in-raw-binary-data mentions a huge 9 MB Ordinal ruleset inscription that no-one managed to decode, and so people suspect is encrypted data. Seems to be split across transactions, starting at fed7de7fb75a3fe3c1acbbd8e19a4c540fb368474c8834e4ddb1d5bab764a767

 Read the full article

Cool data embedded in the Bitcoin blockchain / Quotes and threes by

Ciro Santilli 40 Updated 2025-07-16

 View more

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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 Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.

Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!

Video 1.

Intro to OurBigBook

. Source.

We have two killer features:

topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
Articles of different users are sorted by upvote within each article page. This feature is a bit like:
- a Wikipedia where each user can have their own version of each article
- a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
Figure 1.
Screenshot of the "Derivative" topic page
. View it live at: ourbigbook.com/go/topic/derivative
Video 2.
OurBigBook Web topics demo
. Source.
local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
- to OurBigBook.com to get awesome multi-user features like topics and likes
- as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
Figure 2.
You can publish local OurBigBook lightweight markup files to either https://OurBigBook.com or as a static website
.
Figure 3.
Visual Studio Code extension installation
.
Figure 4.
Visual Studio Code extension tree navigation
.
Figure 5.
Web editor
. You can also edit articles on the Web editor without installing anything locally.
Video 3.
Edit locally and publish demo
. Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
Video 4.
OurBigBook Visual Studio Code extension editing and navigation demo
. Source.
Internal cross file references done right:
Infinitely deep tables of contents:
Figure 6.
Dynamic article tree with infinitely deep table of contents
.
Live URL: ourbigbook.com/cirosantilli/chordate
Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade