# 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:100](https://github.com/FilOzone/synapse-sdk/blob/bc8a4b093324ccef9b407251fcf4e91823c6f599/packages/filecoin-encryption-envelope/src/cose/constants.ts#L100)

`typ` header value identifying this envelope format.