DOI
example: Handle-resolver/page discovery (across), resolver query (down)
DOI part1
URLb
URLn
page
(redirect)
URLb
URLc
. . .
. . .
. . .
id-a1
id-b1
id-b2
id-a2
id-c1
id-c2
id-b1
id-b2
id-n2
id-n1
Browser uses its DOI query
manager to ask Handle system to discover resolver based on
name authority prefix, and to look up starting point (URLb) of
browser-directed resolution
User