Ciro Santilli  Sponsor 中国独裁统治 China Dictatorship 新疆改造中心、六四事件、法轮功、郝海东、709大抓捕、2015巴拿马文件 邓家贵、低端人口、西藏骚乱
A text/file upload system. 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:
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 where 78f0e6de0ce007f4dd4a09085e649d7e354f70bc7da06d697b167f353f115b8e is the toplevel transaction ID:
See Section 1.2. "Nelson-Mandela.jpg (2013-12-07)" for a detailed reverse engineering of the format, and Section 3. "AtomSea & EMBII data format" for a summary of it.
Holy crap, they actually support: is the system to upload/index locally, and therefore likely part of the backend of bitfossil:
The system shows the messages and the images on a single page: 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:
Tried saying hi to them at: and they replied:
Somewhat related projects:
At (2024) EMBII mentions that he was inspired by the Satoshi uploader.


  1. Images
  2. Media type
  3. Cool data embedded in the Bitcoin blockchain
  4. Bitcoin inscription
  5. Bitcoin
  6. List of cryptocurrencies
  7. Cryptocurrency
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  10. Social technology
  11. Area of technology
  12. Technology
  13. Ciro Santilli's Homepage