jamstec.go.jp
Observed Jul 21, 2026, 19:42 UTC (8h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Not responding
Email byGoogle Workspace
Also usesGoogle Search Console
push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat jamstec.go.jp actually stands on - every host below is a signed observation
jamstec.go.jp
NS
dns-x.sinet.ad.jpmstip1.jamstec.go.jp
ad.jp + go.jpanswers its DNS
MX
alt2.aspmx.l.google.comalt1.aspmx.l.google.comaspmx.l.google.comalt4.aspmx.l.google.com+1 more
Google Workspacereceives its email
DNS Records
MX 5
5alt2.aspmx.l.google.com5alt1.aspmx.l.google.com1aspmx.l.google.com10alt4.aspmx.l.google.com10alt3.aspmx.l.google.com
TXT 6
v=spf1 include:_spf.google.com ip4:192.244.231.0/24 -allgoogle-site-verification=So0qRIi3ILlwA5do-wNMtKZIzv3BliWvorzi1PMvNk4v=DMARC1; p=quarantine; rua=mailto:dmarc-rua@jamstec.go.jp, mailto:rua000000242-27lhjom8j@bmscore.jp; ruf=mailto:dmarc-ruf@jamstec.go.jp, mailto:ruf000000242-b9s4rkddd@bmscore.jpv=spf1 ip4:192.244.231.0/24 -allv=spf1 ip4:192.244.231.0/24 -allv=spf1 ip4:192.244.231.0/24 -all
NS 2
dns-x.sinet.ad.jpmstip1.jamstec.go.jp
SOA 1
mstip1.jamstec.go.jp postmaster.mstip1.jamstec.go.jp
TLS Certificates (0)
None.
Subdomains (0)
None observed.
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_63b3c6c9983dc701- Output Hash
1538816d41839b25b96513aeae500c444cd93be450ae3409b30a25347ff14031- Signature
ed25519:fac52cdd935b1c09252edead93bc520997efd424ac83b0bbf9f850ec1a5d0f442aa05259a47dfd02aebcc8ad3837a2ac779f099644f1bb25c084a9594b881f0c- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast