Which DNS Server is Incorrect for sigmaxi.org?

[Barry Finkel]

When I query one of my DNS servers for the address of

     realserver.sigmaxi.org

I get the unauthoritative (and incorrect) answer 192.154.45.128.

When I query the three authoritative servers for sigmaxi.org

     NCNOC.NCREN.NET
     NS2.OAR.NET
     REGGAE.NCREN.NET

I get the correct answer 192.154.45.6.
Is there a way of telling from a dump of the cache the DNS server that
put the incorrect answer into my cache?

     britaine% dig realserver.sigmaxi.org
     
     ; <<>> DiG 8.3 <<>> realserver.sigmaxi.org 
     ;; res options: init recurs defnam dnsrch
     ;; got answer:
     ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
     ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
     ;; QUERY SECTION:
     ;;      realserver.sigmaxi.org, type = A, class = IN
     
     ;; ANSWER SECTION:
     realserver.sigmaxi.org.  1d6h54m46s IN A  192.154.45.128
     
     ;; AUTHORITY SECTION:
     sigmaxi.org.            1d6h54m46s IN NS  NCNOC.NCREN.NET.
     sigmaxi.org.            1d6h54m46s IN NS  NS2.OAR.NET.
     sigmaxi.org.            1d6h54m46s IN NS  REGGAE.NCREN.NET.
     
     ;; ADDITIONAL SECTION:
     NCNOC.NCREN.NET.        37m55s IN A     192.101.21.1
     NS2.OAR.NET.            4h56m22s IN A   192.88.195.10
     REGGAE.NCREN.NET.       1d22h16m28s IN A  128.109.131.3
     
     ;; Total query time: 5 msec
     ;; FROM: britaine.ctd.anl.gov to SERVER: default -- 146.139.254.5
     ;; WHEN: Mon Feb 11 09:23:25 2002
     ;; MSG SIZE  sent: 40  rcvd: 176
     
     britaine%
     britaine% dig realserver.sigmaxi.org @reggae.ncren.net
     
     ; <<>> DiG 8.3 <<>> realserver.sigmaxi.org @reggae.ncren.net 
     ; (1 server found)
     ;; res options: init recurs defnam dnsrch
     ;; got answer:
     ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6
     ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4
     ;; QUERY SECTION:
     ;;      realserver.sigmaxi.org, type = A, class = IN
     
     ;; ANSWER SECTION:
     realserver.sigmaxi.org.  4H IN A  192.154.45.6
     
     ;; AUTHORITY SECTION:
     sigmaxi.org.            4H IN NS        ncnoc.ncren.net.
     sigmaxi.org.            4H IN NS        reggae.ncren.net.
     sigmaxi.org.            4H IN NS        ns2.oar.net.
     
     ;; ADDITIONAL SECTION:
     ncnoc.ncren.net.        4H IN A         192.101.21.1
     ncnoc.ncren.net.        4H IN A         128.109.193.1
     reggae.ncren.net.       4H IN A         128.109.131.3
     ns2.oar.net.            1d8h55m10s IN A  192.88.195.10
     
     ;; Total query time: 39 msec
     ;; FROM: britaine.ctd.anl.gov to SERVER: reggae.ncren.net  128.109.131.3
     ;; WHEN: Mon Feb 11 09:23:12 2002
     ;; MSG SIZE  sent: 40  rcvd: 192
     
     britaine%