osi.org

Observed Jul 21, 2026, 19:39 UTC (1d 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.

Verify this receipt yourself + Watch this domain

Up right now

Runs onDigitalOcean

Email byMicrosoft 365

Secured byLet's Encrypt

Registered witheNom, LLC

1 subdomain · push_legacy

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat osi.org actually stands on - every host below is a signed observation

osi.org

A / AAAA

174.138.112.6

DigitalOceanserves the site

henrik.ns.cloudflare.comkatja.ns.cloudflare.com

cloudflare.comanswers its DNS

osi-org.mail.protection.outlook.com

Microsoft 365receives its email

TLS

osi.org

Let's Encryptissued its certificate

DNS Records

A 1

174.138.112.6

MX 1

0osi-org.mail.protection.outlook.com

TXT 2

v=spf1 include:spf.rkd.ca include:spf.protection.outlook.com -all
v=DMARC1; p=none; rua=mailto:dmarc@osi.org

NS 2

henrik.ns.cloudflare.com
katja.ns.cloudflare.com

SOA 1

henrik.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`osi.org`	C=US, O=Let's Encrypt, CN=YR2	Sat, 26 Sep 2026 07:37:21 +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)

www.osi.org

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for osi.org. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/osi.org">
  <img src="https://domaindrift.io/badge/osi.org.svg"
       width="300" height="64" alt="DomainDrift signed observations for osi.org">
</a>

Ed25519 Receipt

Receipt ID: rcpt_cef23a69066720fb
Output Hash: 0544d6c346a15d71dda2fe809a5dae406c03d4f188f63410f2dd3baa95ec0c78
Signature: ed25519:781dcedffc2d0b2181815642954c22c465a0cae776c868c66314f2df83c9c88ab072ff56d4f13db8ef3baec15eccc912f1efc9cafbafe28cf3a57e46af88000b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/osi.org