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 -47
DS RDATA
n16 bits: key tag
n8 bits: algorithm
n8 bits: digest type
n20 bits: SHA-1 Digest
$ORIGIN ripe.net.
disi.ripe.net    3600 IN   NS   ns.disi.ripe.net
disi.ripe.net.   3600 IN   DS   3112 1 1 (
                                239af98b923c023371b52
                                1g23b92da12f42162b1a9
                                )
This field indicates which key is
the next in the chain of trust