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: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 stringfollowed 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: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:

Semi-boring academic overview, but without reproducibility, or in a way that is too hidden for Ciro to have the patience to find it out.

Claims 1600 files found.

Mentions some upload mechanisms, notably AtomSea & EMBII and Satoshi uploader.

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.