# ENVELOPE_TYPE

> `const` **ENVELOPE\_TYPE**: `"application/vnd.filecoin-encryption+cose"` = `'application/vnd.filecoin-encryption+cose'`

Defined in: [packages/filecoin-encryption-envelope/src/cose/constants.ts:108](https://github.com/FilOzone/synapse-sdk/blob/30608dd46e68d704a96d7ed7c24717c948ec4e4b/packages/filecoin-encryption-envelope/src/cose/constants.ts#L108)

`typ` header value identifying this envelope format.