Satoshi says in his message that he has been connected to a different IP address since the previous day. This is where the address that Murray associated with Trammell comes into play.
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The email also reveals how few participants the Bitcoin network had in its early months. Bohm recounts that there were typically three to five connections previously, while Satoshi asks new users to keep their computers on so they can find someone to connect with.
Murray’s research highlights the association of the IP address with the Austin area and the fact that Trammell was working in the same region at the time. A later addition to the research revealed that another address Trammell had previously shared with Satoshi was also connected to the Roadrunner home internet service in Austin.
However, these matches do not definitively confirm that the node belongs to Trammell. The email does not specify the owner of the link by name; the Trammell connection is based on Murray’s assessment using geographical and technical traces.
Trammell’s direct communication with Satoshi is known through his own published correspondence. In his personal blog, Trammell stated that Satoshi sent him 25 BTC on January 14, 2009.
*This is not investment advice.