This section is about partial implementations that are only able to read the blocks, ususally coming from Bitcoin Core, to interpret the data:
Interesting dude.
By the rich founder of Mt. Gox and Ripple, Jed McCaleb.
Obelisk is the Artificial General Intelligence laboratory at Astera. We are focused on the following problems: How does an agent continuously adapt to a changing environment and incorporate new information? In a complicated stochastic environment with sparse rewards, how does an agent associate rewards with the correct set of actions that led to those rewards? How does higher level planning arise?
Is it mega fast? Nope
Does it work? Yup.
"P2FMS" terminology mentioned e.g. at: Data Insertion in Bitcoin's Blockchain by Andrew Sward, Vecna OP_0 and Forrest Stonedahl.
This is a term invented by Ciro Santilli, and refers to a loose set of uncommon Bitcoin inscription methods that involve inscribing one or a small number of payloads per Bitcoin transaction.
These methods are both inefficient and hard to detect and decode, partly because Bitcoin Core does not index spending transactions: bitcoin.stackexchange.com/questions/61794/bitcoin-rpc-how-to-find-the-transaction-that-spends-a-txo. This makes finding them all that more rewarding however.
On the other hand, they do have the advantage of not depending on any block size limits, as their individual transactions are very small.
Cool data embedded in the Bitcoin blockchain Ordinal ruleset inscription porn by 
Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16These were found by running object detection software for some porn/nudity detection. We need to run some more, all sex was likely missed: github.com/GantMan/nsfw_model/issues/160
Vagina:
- ordinals.com/inscription/723d753d975cbae01b76fb09d827246ef023a46a408c6c452d22d63a6fed9e72i0 shaved closeup
- ordinals.com/inscription/7462bf4f967633efaaadf136c03bc2ad784941563330b593022d68a7c3460641i0 shaved from the front
- ordinals.com/inscription/8e92eb73fa2d0aa951cb860db29107f02d5c439e97254cde87679bb23fea9d27i0 stretch from the back
Dick photos:
- ordinals.com/inscription/3979478c4b9d0e008344cb7274b10ad9f5ea4d04604c97efc56909b825808d18i0 big white dick
- ordinals.com/inscription/8ae58911078f7aa0dfce457355498abc1a5bdd57f5b05525419466064c3e89c3i0 big-ish white dick small blonde guy. Likely gay porn.
- ordinals.com/inscription/dfb4213ac5a26d581cf6b6516bc8726e699ac632f0722c97eb48cfbe6b1e3eb6i0 hard dick
- big black dick Bitcoin memes
Anus:
- #668 ordinals.com/inscription/bb6f577e30e6840dce0474f3c3c55134404688e844982a49161502d3d69e322di0 male asshole open shock porn, this realtively early inscription got some attention:It happened soon after the notable Figure "Ordinal #652", and it likely tried to follow the surge of interest from its predecessor.
- ordinals.com/inscription/31d03361ca6bf998e0623763a87d2f776b33a50504bc3a9bbf128e96d97418b9i0 female open blackhole
Lingerie:
- bitcoinlambos.eth ads
- GenAI blondes in lingerie:
- ordinals.com/inscription/41250e039f9f1fdf9a05a3775d1a94a35bb46481a66687570f5db98ab7d00501i0 serious white bikini
- ordinals.com/inscription/bc361a8978e309d3c5b4212f35c48c74396315ee4c10a7e2f17427264d3178c6i0 Jenna Jameson 80's style photo shoot at at the beach. More at www.forumophilia.com/topic462690.html.
- ordinals.com/inscription/647b0cafe5a6fc545e40b6c1bab910c43adfe6b372fee0cc65d0aef9e470d820i0 Bitcoin carnival dress? What are the fruits behind and what is written in the back?
Sexy illustrations:
- ordinals.com/inscription/beeff78be2939caa9491b7588a6c3822b40b7e00d74190db1838ae9e0845b761i0 The Source by Jean-Auguste-Dominique Ingres (1856). Classical painting woman with pot.
- ordinals.com/inscription/890fc1226d6ac2dbcd54c8a9292581b903c2ab85f1eec8a0b0951bb32f88a173i0 genai cartoon futuristic big boobs
- ordinals.com/inscription/343699e12e3239357f42eab428a60591b9a40599ce57dfffe29709ed103f426di0 vagina apples
- ordinals.com/inscription/3bc21aa658a36c4e26a1c2631ac280e101d7167ee3fa19debadeb44cff0a9535i0 sexy drawing in lingerie
- ordinals.com/inscription/1a30aef623eac0dad6fc6759dc7c963266cda44ce43cece420bc41a07734b3cdi0 bikini selife onlyfans
- The "Astral Babes" Ordinal ruleset inscription collection magiceden.io/ordinals/marketplace/astral-babes hits positive for breasts and is a pain in the butt:
- ordinals.com/inscription/bd1705c52b601ab93b7e82c07477fed89568e3ebd4719ddf41d73c8be57c2d65i0
- ordinals.com/inscription/bd1705c52b601ab93b7e82c07477fed89568e3ebd4719ddf41d73c8be57c2d65i0
- ordinals.com/inscription/c7cd91355f7306c72d4d69f073f07f089689b7f790fb1c8595ac59eaed115af5i0
- ordinals.com/inscription/4322bcce78f05bb280337892954cce24948c9e0a90cb486c9734f90beae14811i0
Cool data embedded in the Bitcoin blockchain Ordinal ruleset inscription collection by Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16This section is about groups of ordinal ruleset inscription that share a theme and were presumably created by a single entity.
Cool data embedded in the Bitcoin blockchain Technically interesting ordinal by Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16This section is about ordinals that are interesting primarily due to technical reasons linked to edge cases of the protocol.
Interesting MIME types:
- ordinals.com/inscription/dad86d722156b8c384c1f3243e40aa7a0f6f5be496bc24e19485831584f9803fi0: mime type is an UTF-8 orange emoji "🟠"
- ordinals.com/inscription/bc7b86245159cdf8bc63489687909f766a0a0e08279d23fb077cdd60ab1e9f22i0: mime type is an XSS attempt:
<script>alert('xss in content type')</script> tx=bc7b86245159cdf8bc63489687909f766a0a0e08279d23fb077cdd60ab1e9f22 - ordinals.com/inscription/bc7b86245159cdf8bc63489687909f766a0a0e08279d23fb077cdd60ab1e9f22i0: mime type is "FuckYou"
- ordinals.com/inscription/00b0ece72217ce49b637b3f9bf5335bc245e588568aa0676581b40c1bedc521di0: the mime is a long JSON. However, it does appear to be a valid feature as it rendered specially on ordinals.com.
Different
ord markers:- 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5 uses
takingnames. Decode with:gives the PNG of the wireframe draing of a washing machine with transparent background.bitcoin-core.cli decodescript "$(bitcoin-core.cli getrawtransaction 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5 true | jq -r '.vin[0].txinwitness[1]')" | jq -r .asm | sed 's/.* 0 //;s/ OP_ENDIF//;s/ //g' | xxd -r -p > 71e85885522047240a9e70542145dbf2385e1bd468e6ac6002aa755422ea10f5.png
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.
Some examples:
- ordinals.com/inscription/4b9a822a057743813efbefa0dd21d0a01342ee793ce2ce5bd499a5f262187553i0 first inscription with no mime type.
- ordinals.com/inscription/2fa287270e4203ca2fc9f82ea3de7a0f7b785875791a76387ef6f4ccbb54eee2i0 is -38:is bugged because it is missing the mime type, on Python:because the
[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]1should instead beb'\x01.
Cool data embedded in the Bitcoin blockchain Ordinal ruleset inscription by Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16Ordinals are inscriptions created with the protocol described at: docs.ordinals.com/inscriptions.html The protocol was designed by developer Casey Rodarmor, and shares a few similarities with the AtomSea & EMBII protocol.
The protocol also includes a way to have ownership over inscriptions, effectively creating an NFT system on top of the bitcoin blockchain. AtomSea & EMBII also already had such a system however. In either case, Ciro Santilli couldn't give less of a fuck about who owns some random publicly viewable digital asset.
For whatever reason, orinals became extremelly popular compared to the AtomSea & EMBII format, leading to millions os inscriptions, and 10k+ images as of block 830k. They also started to take up a substatial portion of the available block space.
This in turn led to a lot of child porn rediscussion, and people linking back to this page to view earlier inscriptions: incoming links.
Unfortunately, unlike AtomSea & EMBII and even cryptograffiti.info uploads, most ordinals are designed to be just souless bulk collectibles, as with as much artistic merit as any random collectible card set or postage stamps you may find at a newpaper stall. To make things worse many of them are likely algorithmically generated. Eternal September had truly arrived to the Bitcoin blockchain. As a result, machine learning would be almost essential in order to find interesting uploads amidst such bulk.
Ordinal #0
. This is the first ordinal ruleset inscription: ordinals.com/inscription/6fb976ab49dcec017f1e201e84395983204ae1a7c2abf7ced0a85d692e442799i0. It was made on block 767430 (2022-12-14).The
i0 at the end of the URL above means "inscription 0". This is because a single transaction can have multiple inscriptions.
The ordinals also started taking up large portions of the Bitcoin blockchain:
Apparently the "Taproot" Bitcoin update made it easier to upload image-sized data once again, which had become prohibitively expensive 2023 and much earlier:
- protos.com/did-taproot-ruin-bitcoin-with-nft-inscriptions-of-monkey-jpegs/
- ordinals.com/ appears to index some types of ordinals
Bibliography:
- blocktelegraph.io/parent-child-bitcoin-inscriptions/ parent-child relationshipsi are possible between two ordinals
- ordinals.com/
- bitcoin.stackexchange.com/questions/117018/understanding-how-ordinals-work-with-the-bitcoin-blockchain-what-is-exactly-sto
- bitcoin.stackexchange.com/questions/118405/read-ordinal-transaction-data
- bitcoin.stackexchange.com/questions/118247/can-someone-explain-the-byte-composition-of-an-inscription-reveal-transaction
- nftnow.com/guides/bitcoin-nfts-most-notable-ordinals-inscriptions/
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