Check authority
Identify the signing entity and person authorised to act. Ask for ownership evidence, collection history, rights restrictions and any existing exclusive licences.
Check integrity
Use manifests, checksums, counts and reproducible samples to make the delivered collection auditable. Record transforms and exclusions.
Check the buyer
Confirm its legal identity, allowed users, security process, evaluation terms and payment obligations. Establish a written contact and escalation route before transfer.
Use this as a preparation framework. It is not legal advice, a valuation or a promise that a buyer will accept your data.