# 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/e853a1d93da8c983371ffce4424cdb8996cc06ff/packages/filecoin-encryption-envelope/src/cose/constants.ts#L108)

`typ` header value identifying this envelope format.