| Name | Type | Description | Notes |
|---|---|---|---|
| Checksum | string | The hex-string encoded checksum for the data | [default to null] |
| Type_ | string | The digest method used to create the checksum. The value (e.g. ```sha-256```) SHOULD be listed as ```Hash Name String``` in the https://www.iana.org/assignments/named-information/named-information.xhtml#hash-alg[IANA Named Information Hash Algorithm Registry]. Other values MAY be used, as long as implementors are aware of the issues discussed in https://tools.ietf.org/html/rfc6920#section-9.4[RFC6920]. GA4GH may provide more explicit guidance for use of non-IANA-registered algorithms in the future. Until then, if implementors do choose such an algorithm (e.g. because it's implemented by their storage provider), they SHOULD use an existing standard ```type``` value such as ```md5```, ```etag```, ```crc32c```, ```trunc512```, or ```sha1```. | [default to null] |