Chain-of-custody evidence explains movement and control. Lithium Record preserves those files so origin statements do not stand alone. 1 2
This spoke belongs to the Lithium Provenance Due Diligence pillar at /lithium-provenance-due-diligence/.
Custody is movement evidence
A chain-of-custody file may include shipping documents, transfer statements, warehouse records, processor intake logs, lot references, or customer declarations. The record should state which portion of the chain the file covers. A custody document from processor to customer does not automatically prove mine-to-processor custody unless the uploaded evidence says so.
Custody and due diligence
Battery due-diligence records need more than a location statement. They need evidence showing how the material moved through the value chain and where risk information entered the file. Chain-of-custody pages help connect origin, supplier review, carbon evidence, and passport handoff. They are especially useful where lithium documents come from several upstream actors.
Vault limitation
Lithium Record can record the file, hash, issuer, and custody boundary. It does not authenticate every transfer, inspect storage, or certify custody. If a custody claim is disputed, the page shows the evidence record; it does not resolve the dispute.