Try to reproduce—or disprove—the Rosenberg answer.

Frozen revision

Dossier SHA-256

8665919235be6c94b4d53fb123ed461e14672996e486eac08f9e404413ff103b

Primary receipts

aae5da6227419bf60dc922dd8dae1bd7ea53b9ab02b4154561258714f2c798d2

Manual receipts

74aae4199355e3b025522ec22180b15d6632b8e61a6124e17ae623866ea96076

1947 archive bridge

4b6d50fbe3c8bbbbbd11da7d9f5f3ca90c0f859454271e5d4861609714cb995e

If any digest differs, stop and request a newly frozen protocol. Do not mix evidence from different revisions.

Independent researcher return form

Confirm eligibility and attribution custody

The downloaded file is pseudonymous. The facilitator must separately retain your identity, affiliation, and conflict disclosure so the review is attributable during release approval.

Track 1

Independent dossier review

Without assistance from the producer, reproduce the bounded answer, verify the RBS primary entry, identify at least one disagreement or non-comparable result, and state what the evidence does not prove.

• answer reproduced
• primary evidence verified
• disagreement exposed
• claim boundary accepted or corrected

Minimum independently checked source URLs: 3.

Track 2

Researcher speed and reproducibility study

Eligibility: A genuine provenance researcher, curator, archivist, collections-information professional, or closely related practitioner who did not produce this case.

1. Using the listed external sources without Meta Museum's dossier or interface, answer the frozen question and retain the source URLs used.
2. After a washout or counterbalanced ordering, answer the same frozen question using /research/rosenberg and retain the source URLs used.

Timing: Start at first exposure to the task; stop when the participant submits an answer and citations. Cap each condition at 30 minutes.

• At least 3 genuine researchers.
• Median time improvement ≥ 20%.
• Reproduction rate ≥ 80% across at least 3 sources.

Run a researcher comparison session

Track 3

Non-specialist boundary comprehension

Eligibility: A genuine consented adult who does not work or study professionally in art provenance, restitution, museum collections, or art history.

1. In your own words, what does the evidence support about the Braque and Paul Rosenberg?
2. In your own words, name at least two conclusions the evidence does not establish.

Two independently identified human coders use the frozen rubric; disagreements are adjudicated before import.

Pass threshold: at least 80% of 5 or more participants correctly explain both claim and boundary.

Take the reader study