Tapedrive content caches unusually well
Tracks are immutable. Replacing data means writing a new track, and a track-addressed URL can only ever serve one payload; its ETag is the track’s on-chain commitment (how tracks work). Cache invalidation, the classic operational headache of CDN setups, mostly disappears: track-addressed content can be cached indefinitely. The only mutable thing in the system is a name. Object names are pointers that can be re-aimed at new tracks (objects), so name-addressed URLs are the ones that need short TTLs.Two cache policies
The gateway already sends the right headers for the first row:
Cache-Control: public, max-age=31536000, immutable with the commitment as ETag (get object).