Columbia University

Columbia Academic Commons

Columbia University's institutional research repository, holding the scholarly output, theses and research data of the university. Unusually for this cohort it is NOT a vendor tenancy: it runs on Hyrax/Blacklight — open-source repository software the Libraries help maintain — on Columbia's own host and hardware, with Columbia's own DOIs. The repository is therefore institution-operated in full. It could not be verified on this run: every request, including the OAI-PMH path and including requests presenting full browser headers, returns an Anubis proof-of-work interstitial with HTTP 200 and a bot-check body. No contract, schema or OAI Identify response is claimed for it, and no scored pointer is emitted to the host, because an Anubis-challenged host is indistinguishable from a soft-404 to an automated prober.

Documentation GitHub

Other Resources

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Conformance

https://raw.githubusercontent.com/api-evangelist/columbia/refs/heads/main/conformance/columbia-conformance.yml

API entry from apis.yml

aid: columbia:academic-commons
name: Columbia Academic Commons
description: 'Columbia University''s institutional research repository, holding the scholarly output,
  theses and research data of the university. Unusually for this cohort it is NOT a vendor tenancy: it
  runs on Hyrax/Blacklight — open-source repository software the Libraries help maintain — on Columbia''s
  own host and hardware, with Columbia''s own DOIs. The repository is therefore institution-operated in
  full. It could not be verified on this run: every request, including the OAI-PMH path and including
  requests presenting full browser headers, returns an Anubis proof-of-work interstitial with HTTP 200
  and a bot-check body. No contract, schema or OAI Identify response is claimed for it, and no scored
  pointer is emitted to the host, because an Anubis-challenged host is indistinguishable from a soft-404
  to an automated prober.'
humanURL: https://academiccommons.columbia.edu/
tags:
- Research Repository
- Institutional Repository
- Open Access
- Hyrax
- Blacklight
- Blocked
properties:
- type: Conformance
  url: conformance/columbia-conformance.yml
x-operator: institution
x-operator-evidence: academiccommons.columbia.edu resolves to ac-rails-prod1.cul.columbia.edu / 128.59.222.111,
  in Columbia University Libraries' own address space. No vendor CNAME. Columbia University Libraries
  maintains its own forks of hyrax, blacklight and blacklight_oai_provider in the cul GitHub organisation.
x-access: blocked
x-status: 200 Anubis proof-of-work challenge body, probed 2026-08-19