Contributor Rights Certification and Data License

Rarework Contributor Rights Certification and Data License Version: 2026-08-20-attorney-review-draft-v2 Last updated: August 20, 2026 This is the complete agreement for the submission identified in the offer. It is between Rarework and the person or company accepting the offer ("Contributor"). There are no other contributor terms incorporated into this agreement. By checking the confirmation box and accepting the offer, Contributor certifies that: 1. Contributor owns the submitted data or is authorized by the company or other owner of the data to enter into this agreement and grant the license below. 2. Contributor is permitted to disclose and commercially license the submitted data. The submission does not contain credentials, regulated sensitive personal data, or material that Contributor is prohibited by law, contract, confidentiality duty, employment duty, or company policy from disclosing or licensing. 3. If the submitted data belongs to a company, the person accepting this agreement has authority to act for that company. Merely having access to data or the technical ability to export it does not by itself establish that authority. 4. The ownership, authorization, task, outcome, and provenance information provided to Rarework is accurate. Rarework may request supporting information, reject the submission, or stop using it if Rarework reasonably believes these certifications are inaccurate. 5. If Contributor accepts an offer, then in exchange for the amount stated in that offer, Contributor grants Rarework a non-exclusive, worldwide, perpetual, transferable, sublicensable, royalty-free license to host, store, reproduce, review, clean, redact, de-identify, annotate, transform, combine, analyze, distribute, and commercially license the submitted data for machine-learning and artificial- intelligence research, training, evaluation, safety, dataset development, and related products and services. 6. Contributor keeps ownership of the underlying submitted data. The accepted offer is the complete payment for this license unless Rarework and Contributor sign a different written agreement. Contributor is not entitled to royalties or revenue from Rarework products or sublicenses. 7. Rarework may provide the submitted data or derived versions to its customers and licensees under the license above. 8. This license begins when Contributor accepts the offer. The license and sublicenses already granted survive account deletion. Rarework may stop future use or distribution when required by law or when it confirms a valid rights or privacy problem, but is not required to recall models, analyses, derived works, or copies already created or distributed unless applicable law requires it. 9. Contributor accepts this agreement electronically. Rarework records the accepting account, acceptance time, document version, and SHA-256 hash of this document. A copy may be downloaded or printed before acceptance. Questions or rights notices: legal@rarework.org.