The historical Landsat Level-1 Scene ID is in the EarthExplorer metadata. After entering a search using the historical Scene ID, the Landsat Level-1 Collection 1 Product Identifier will be returned in the search results. The results can be exported from EarthExplorer in a variety of formats for metadata parsing.
We also encourage use of the Bulk Metadata Service to download files that contain both the Collection 1 Level-1 Product Identifier and the corresponding historical Scene ID.
Explore Landsat data: Landsat Data Access