Source: /cirosantilli/cool-data-embedded-in-the-bitcoin-blockchain/atomsea-and-embii

= AtomSea & EMBII
{c}
{title2=2013-}

A text/file upload system.

http://bitfossil.org/ an indexer website which interprets the format. Each page has an "abuse report" button to unindex presumably. TODO website source? Local indexer/extraction script? Ciro's indexer and its generated index can be found at:
* https://github.com/cirosantilli/bitcoin-inscription-indexer\#atomsea
* https://github.com/cirosantilli/bitcoin-inscription-indexer\#atomsea-index

Each AtomSea payload has a toplevel transaction which links to other transactions. All the linked transactions together make up the payload. The most common payload type is a text plus image, as is the case of <Nelson-Mandela.jpg>, which can be seen at http://bitfossil.com/78f0e6de0ce007f4dd4a09085e649d7e354f70bc7da06d697b167f353f115b8e/ where `78f0e6de0ce007f4dd4a09085e649d7e354f70bc7da06d697b167f353f115b8e` is the toplevel transaction ID: https://www.blockchain.com/btc/tx/78f0e6de0ce007f4dd4a09085e649d7e354f70bc7da06d697b167f353f115b8e

See <Nelson-Mandela.jpg>{full} for a detailed reverse engineering of the format, and <AtomSea & EMBII data format>{full} for a summary of it.

Holy crap, they actually support:
* multipage setups: `The Mahabharata` http://bitfossil.com/0618f12af65a4e82f8e7b41f8578721dfeb109e9a73ff71aebdbc982696e3720/
* image galleries: http://bitfossil.org/ae8d3b46b934bedc363e11abe8c8607171994470957c286274f699a0b3a9bbd7/index.htm
* audio: `Spock_Live_Long_And_Prosper.mp3` http://bitfossil.org/1bc87dbff1ff5831287f62ac7cf95579794e4386688479bab66174963f9a4a0c/index.htm
* author photo below post via signture!!! http://bitfossil.org/738ab32bf82e3e0d4d2b29e40ad194cbbef6685d0116e94371e3cef4992349c8/index.htm (testnet) See the `SIGNED BY` with EMBII's photo!

http://apertus.io/ is the system to upload/index locally, and therefore likely part of the backend of bitfossil: https://github.com/HugPuddle/Apertus

The system shows the messages and the images on a single page: http://bitfossil.org/4cbb32cd27b5b5edc12d3559bdffc1355ac2a210463d5cfaadc7ce9b06675b2b/index.htm It is basically a blockchain-based Twitter.

<Hidden surprises in the Bitcoin blockchain by Ken Shirriff (2014)> suggests that AtomSea & EMBII are the creator's aliases. The following online profiles of the creators feel authentic:
* AtomSea:
  * https://twitter.com/TheAtomSea
  * https://github.com/AtomSea
* <EMBII>
* HugPuddle
  * https://github.com/HugPuddle
Tried saying hi to them at: https://twitter.com/cirosantilli/status/1382080760774033415 and they replied: https://twitter.com/AllenVandever/status/1563964396656812034

Somewhat related projects:
* http://www.memorymatrix.org/

At https://twitter.com/EMBII4U/status/1762501350997233976 (2024) <EMBII> mentions that he was inspired by the <Satoshi uploader>.