It looks very basic without bitcoin addresses on main page and without extra features we have today, but it was useful back in the days.
- theymos initially launched the Block explorer as a close source, and told that he maybe make the code public later which never happened.
- He run it for a long time till 2012 not sure because theymos announced the new domain in 2010, but Wayback machine shows it in 2012 when he switched the domain to blockexplorer.com [1], before selling it around Feb 2013 to Liraz.org. The owner of Liraz site is Lira Siri (Twitter/ X). His account on Bitcointalk is liraz.
- Lira Siri runs the Bitcoin block explorer for a while until May or June 2020 before made some change and later turned it to Joseon Explorer
- Source of the information
[1] https://web.archive.org/web/20120308072440/http://blockexplorer.com/
Some screenshots for above information.
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F12%2F19%2FE0Uzc.png&t=670&c=qY60I3ZbGZW10Q)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F12%2F19%2FE02d2.png&t=670&c=I5llF7z29Ge2dA)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F12%2F19%2FE0ahP.png&t=670&c=U1Q1d5Sylr8GDQ)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F12%2F19%2FE0X0q.png&t=670&c=lG6szIRFfuVRyg)
![](https://ip.bitcointalk.org/?u=https%3A%2F%2Ftalkimg.com%2Fimages%2F2023%2F12%2F19%2FE0umj.png&t=670&c=TOwjhs3dc38cPw)
Blockchain.info possibly a second Bitcoin block explorer in history.
It was run by piuk. Blockchain.info - Bitcoin Block explorer & Currency Statistics (announced in August 2011).