Open metadata infrastructure

Knowledge deserves
careful verification.

Mond preserves verified mappings between MD5 fingerprints and Open Library editions. Every mapping is reviewed by a human moderator before it enters the public dataset.

— The record —

One mapping, from submission to seal.

This is the entire journey of a single record through Mond. Nothing enters the dataset without passing every stage.

MD5 record source

The Left Hand of Darkness

Ursula K. Le Guin · epub · 1969

md5  f2b4d1a9c07e83aa41c6…9e12

Metadata validation
  • Title normalized and matched
  • Author name matched
  • ISBN-13 checksum valid
  • Publication year consistent
Open Library edition target

OL7602281M

Ace Books · 1969 · ISBN 978-0-441-47812-5

Moderator review Verified
“Edition matches the first Ace paperback printing. ISBN confirmed against the Open Library record. Approving.”

reviewed by a community moderator

Verified Mapping

f2b4d1a9…9e12 OL7602281M

Entered into the public dataset. Permanent, attributed, and free.

— Why we work this way —

Slow, deliberate, and human.

Preserve

Metadata decays quietly. Titles drift, editions blur, links rot. A book that cannot be found is a book that is lost — no matter how many copies survive.

Verify

Automation catches errors; it does not create trust. Every mapping in Mond is read by a person before it is accepted. Careful eyes are the archive’s real infrastructure.

Publish

The dataset belongs to everyone. It is exportable in full, versioned in the open, and carries its provenance with it — so it can outlive any single server, or any of us.

“A library is only as durable as its catalog.”

— The workflow —

Four stages. No shortcuts.

  1. 01

    Submit

    Propose a mapping between an MD5 record and an Open Library edition.

  2. 02

    Validate

    Automated checks normalize titles, verify ISBN checksums, and compare fields.

  3. 03

    Review

    A human moderator reads every submission before it is accepted. No exceptions.

  4. 04

    Export

    Verified Mappings join the public dataset — free to download, forever.

— Open source —

Open by principle, not by fashion.

An archive you cannot inspect is an archive you cannot trust. Mond’s code, data, and moderation history are open — permanently.

AGPL-3.0 licensed

The code, and every improvement to it, stays free — even when run as a service.

Source in the open

Development happens in public. Issues, decisions, and history are visible to all.

Community maintained

No company behind it. Contributors and moderators keep the archive alive.

Transparent review

Every moderation decision is recorded.

Mond

Mond — German for “Moon.” A quiet archive of verified book metadata.

Built quietly. Maintained openly. Mond is free software under the AGPL-3.0 license.