Source: /cirosantilli/cool-data-embedded-in-the-bitcoin-blockchain/rickrolling

= Rickrolling
{c}

</Rickrolling> lyrics were mined several times into the blockchain.

The first currently known instance is as a link right during the <prayer wars> on https://www.blockchain.com/explorer/blocks/btc/142573[block 142573] (2011-08-25) as the <miner message>:
\Q[Militant atheists, http://bit.ly/naNhG2 -- happy now?"]
which redirects to https://www.youtube.com/watch?v=mGDuExhS6Nw&blockchain

Around block https://github.com/cirosantilli/bitcoin-inscription-indexer/blob/master/data/in/0264.txt\#L28[block 246k] (e.g. https://www.blockchain.com/explorer/transactions/btc/27b7c526489dac8245747fa1c425a2e3eb07dea57b294eb4ae583fec9b859fcf[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 http://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 https://twitter.com/EMBII4U/status/1655831533750562816 EMBII mentions that this was part of an upload test.

https://github.com/cirosantilli/bitcoin-inscription-indexer/blob/master/data/out/0268.txt\#L1[tx d29c9c0e8e4d2a9790922af73f0b8d51f0bd4bb19940d9cf910ead8fbe85bc9b] (https://www.blockchain.com/explorer/transactions/btc/d29c9c0e8e4d2a9790922af73f0b8d51f0bd4bb19940d9cf910ead8fbe85bc9b[2013-11-13]) contains a plaintext Rickroll lyric in an <output script> via <OP_RETURN>.

https://github.com/cirosantilli/bitcoin-inscription-indexer/blob/master/data/in/0307.txt\#L61[tx 15b11e8d4e5b9425f024b381ba0cb7a54a35e52389bb4855f505772ce685b39c] (https://www.blockchain.com/explorer/transactions/btc/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 (https://www.blockchain.com/explorer/transactions/btc/62f8b228b6126354736d36d9f3b91882bb81eca7702b74fba6471abc7db96a03[2015-09-30])
They were mega obnoxious!!! Who does this kind of crap for more than one year!!!