Coinbase message are messages that only miners can embed in the blockchain.
As such most of them tend to be boring ads for mining pools, but there are a few exceptions, especially in the early days.
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 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!!!
There's a bit of both sides in the 2016 race:
The list of minor planets numbered 55001–56000 includes various celestial bodies that are located primarily in the asteroid belt between Mars and Jupiter, as well as other regions in the solar system. This range includes both discovered asteroids and minor planets that have been charted and cataloged by astronomers.
Pandia is one of the moons of Saturn. It was discovered in 1980 using images from the Voyager 1 spacecraft. Pandia is classified as a member of the Inuit group of Saturn's moons and has a relatively irregular shape, which is common among many smaller moons in the outer solar system. It orbits Saturn at a distance of approximately 24,500 kilometers (about 15,200 miles).
The list of minor planets in the range from 563001 to 564000 includes various small celestial bodies that orbit the Sun. These minor planets (also known as asteroids) are identified by their provisional designations and numerical designations. Each minor planet has a unique number and often a name that is usually attributed after a certain period following its discovery.
The list of minor planets numbered from 567001 to 568000 includes a range of objects in the solar system that have been given specific designations by the Minor Planet Center (MPC). Each minor planet is usually named after a person, place, event, or concept, depending on the naming conventions set by the International Astronomical Union (IAU).
Pasiphae is one of the natural satellites of Jupiter. It was discovered in 1908 by astronomer Philibert Jacques Melotte. Pasiphae is notable for being part of Jupiter's irregular moon group, which consists of moons that have distant, eccentric, and often retrograde orbits.
The list of minor planets numbered between 578001 and 579000 includes objects that are part of the Solar System, specifically in the asteroid belt or other regions. They are cataloged by the Minor Planet Center, which is responsible for the designation of minor planets and comets. Each minor planet has a unique number and often a name if it has been officially designated.
The list of minor planets from 59001 to 60000 includes a sequence of numbered asteroids that have been cataloged by the Minor Planet Center. Each minor planet is given a unique number once it's confirmed, and they are often named based on various themes, such as mythology, history, or contributions to science. For example: - 59001 might be named after a notable person or event. - 59002 could follow a similar theme but with a different name.
The list of minor planets in the range of 596001 to 597000 contains a series of small celestial bodies that are primarily located in our solar system, particularly in the asteroid belt, but can also include trans-Neptunian objects and other small bodies. Each minor planet is assigned a unique number upon discovery, along with a provisional designation and, in some cases, a name.
Praxidike is one of the natural satellites of the dwarf planet Haumea, which is located in the Kuiper Belt beyond Neptune. It was discovered in 2003 and is named after the Greek goddess Praxidike, who represents the concept of vengeance. Praxidike is relatively small, with an estimated diameter of about 49 kilometers (approximately 30 miles).
The list of minor planets numbered 85001 to 86000 includes a variety of small celestial bodies orbiting the Sun, typically in the asteroid belt located between Mars and Jupiter. Each minor planet has a unique designation number, and many may also have a name associated with them. This list is part of the broader catalog of minor planets maintained by organizations like the International Astronomical Union (IAU).
The list of minor planets numbered 9001 to 10000 consists of various small celestial bodies that orbit the Sun. Each minor planet (or asteroid) is assigned a unique number once it has been confirmed, and many also have names that commemorate individuals, places, or events.
S/2003 J 23 is a small natural satellite, or moon, of Jupiter. It was discovered in 2003 and is part of a group of moons that orbit Jupiter in a retrograde direction, meaning they move in the opposite direction of Jupiter's rotation. These moons are typically irregularly shaped and are believed to have formed from captured asteroids or other celestial bodies.
The list of minor planets numbered from 99001 to 100000 includes various celestial bodies that have been assigned a designation by the Minor Planet Center. These include asteroids and other small objects in the solar system that have been observed and cataloged.
The list of unnumbered trans-Neptunian objects (TNOs) includes objects in the outer solar system, particularly beyond the orbit of Neptune. TNOs can be classified into several categories, including classical Kuiper Belt objects, resonant TNOs, and scattered disk objects. In 1999, several unnumbered TNOs were discovered, though the specifics of these objects would depend on the naming conventions and catalogs used at the time.
The "List of unnumbered trans-Neptunian objects: 2005" refers to a collection of trans-Neptunian objects (TNOs) that were discovered in 2005 but had not yet been assigned a permanent designation or number. Trans-Neptunian objects are celestial bodies located in the region beyond the orbit of Neptune, primarily found in the Kuiper Belt.

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!
We have two killer features:
  1. 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
  2. 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:
    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.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact