Debian developers web of trust

I would like to explore the other web of trust implementation like “debian developers web of trust” in order to document them on wikipedia (Web of trust - Wikipedia) and compare them with Ğ1 web of trust.

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Debian WoT in 2015

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showing signature age:
blue, ≤1 year
green, between 1 and 2 years
yellow, between 2 and 3 years
orange, between 3 and 4 years
red, ≥4 years

If someone has recent analysis on the Debian web of trust I would be very happy. I found this one which is from … 2010. And has a lot of dead links.

Trust analysis on the Debian Keyring