Issuer of 200103ffe3ff8

[Robert Moskowitz]

I am working on developing the X.509 certificates that can be used 
behind the IETF DRIP Drone Identity Tags (see rfc 9374).

There is a 2-level hierarchy under the prefix (so perhaps really 3 
levels) encoded within the DETs.

So the 'root' or apex is identified by 2001030000000

If the next level is 16376 then the identifier for this level is 
200103ffe (well actually more complex as 12 bits does not fit nicely 
into nibbles)

And if the lowest level is 16376 the identifier is 200103ffe3ff8

I would want the Issuer DN to be these values.  What might be the 
preferred DN field for encoding this?  CN? UNSTRUCTUREDADDRESS? (how is 
this abbreviated?) serialNumber (SN)? or something else?

I may decide to use the whole issuer DET (e.g. 
20010030000000052aeb9adc1ce8b1ec; and yes this is a valid IPv6 address) 
to know which key was used for signing (key rollover and other thoughts).

BTW to learn of the entity behind, say 200103ffe3ff8 check out 
auth.8.f.f.3.e.f.f.3.0.0.1.0.0.2.ip6.arpa.  for the URI (not working, yet.)

thanks.