math.ch
Observed Aug 10, 2026, 22:27 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.
math.ch is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting math.ch 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.ch Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Microsoft 365
Let's EncryptDNS Records
A 1
129.132.119.214
MX 1
0math-ch.mail.protection.outlook.com
TXT 1
v=spf1 include:_id.ethz.ch ~all
NS 2
ns1.ethz.chns2.ethz.ch
SOA 1
ns.ethz.ch hostmaster.ethz.ch
SRV 1
autodiscover.ethz.ch:443 p0
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
math.ch |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 02 Oct 2026 06:19:13 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +0000 |
Subdomains (1)
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_a29d5ecef043b94c- Output Hash
09b0c3aff02c8c1eb0e9ac8e945a9c9e5e30cef4a58c0cb531ca92d8f9111af9- Signature
ed25519:d34cfc0325d2d02106f1860cc627456bb7029e900ed1446ab221b7b2f1e594ae974b7c602be22c0c2f5cdded376667f74b8352ec91617fdf82f53233fc976a0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast