math.cat
Observed Aug 11, 2026, 06:42 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.
math.cat is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting math.cat under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch math.cat Watching a domain needs a DRM3 account. The reading above stays free and public either way.DNS Records
A 1
85.131.192.18
MX 2
10spool.mail.gandi.net50fb.mail.gandi.net
TXT 1
v=spf1 include:_mailcust.gandi.net ?all
NS 5
ns1.cloudfree.ne.jpns2.cloudfree.ne.jpns3.cloudfree.ne.jpryan.ns.cloudflare.comtori.ns.cloudflare.com
SOA 1
ryan.ns.cloudflare.com dns.cloudflare.com
SRV 2
mail.gandi.net:993 p0mail.gandi.net:465 p0
TLS Certificates (0)
None.
Subdomains (0)
None observed.
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_47a519c159099b7d- Output Hash
59cece69a39a96f7aa0f3bf9f49803ae2e727e70cc1cd4893b4184d21b9600dc- Signature
ed25519:638d5886a5014cd71718c3d90ca8804e52c8fd2ef17a2778b0c3cec2e0d1a51615ec92e8801298ec3a0ab70a7d44fcdf38223b2bab88ddb9e9db21e9d93b530a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast