hmhco.com

Observed Jul 24, 2026, 17:45 UTC (2d 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.

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Up right now

Runs onIncapsula

Email byMimecast

Secured byGlobalSign

Registered withNetwork Solutions, LLC

Also usesAtlassianDocuSignFacebook/MetaGoogle Search ConsoleMiro

8 subdomains · education_expanded

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

No payload stored for this observation.

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 hmhco.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_10da323a63242e87
Output Hash: 1bc0b2512f4cb2005541af820a53b74bf22a66f774b404d8da8f9f6e2ce42dcc
Signature: ed25519:ba21bb9ccfa9a05724d3ec1d3b176033641d1d9439525e5f65034bf97e09d8dba8ae78664279f841b24ddaa3206ef6446a2030dc2f835983821dbccb60866c0b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/hmhco.com