Top-level
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Top Level Fields
These header fields uniquely define this BCO. These fields are required for every BCO and are represented at the top level object.
Condensed example:
{
"object_id": "https://example.com/BCO_948701/1.0",
"spec_version" : "https://w3id.org/ieee/ieee-2791-schema/2791object.json",
"etag": "d41d8cd98f00b204e9800998ecf8427e",
"provenance_domain": {
},
"...": { }
}
BCO version “spec_version”
The version of the BCO specification is used to define the BCO. It is recommended that this value is a permalink as defined in the w3id.org/biocompute repository.
"spec_version": "https://w3id.org/ieee/ieee-2791-schema/2791object.json"
BioCompute Object Identifier “object_id”
A unique identifier that should be applied to each BCO instance. These can be assigned by a BCO database engine or manually generated. IDs should never be reused. It is recommended that the BCO identifier is based on a UUIDs (sometimes called GUIDs) to ensure uniqueness, either as a location-independent URN (e.g. urn:uuid:2bf8397b-9aa8-47f2-80a7-235653e8e824) or as part of an identifier permalink, (e.g. http://repo.example.com/bco/2bf8397b-9aa8-47f2-80a7-235653e8e824). While the UUID is the preferred method, IDs expressed as a URN or URL will satisfy the standard.
The following is the recommended format for a BCO object_id, and what has been implemented by the BCODB:
The "object_id" consists of four different parts:
| <protocol> | <hostname> | <BCO accession> | <BCO version> | | ------------ | ---------------------- | ---------------- | -------------- | | https:// | biocomputeobject.org/ | /BCO_000001 | /1.5 |
- Protocol: It is recommended that this be HTTPS or at least HTTP see Scheme in RFC 3986 for more detail on protocols.
- Hostname: see Host in RFC_3986
- BCO Accession: composed of 2 parts separated by an underscore( _):
- The BCO Prefix: A 3-5 alphanumeric characters. Preferably one registered via the BioCompute Registry
- BCO identifier: a numeric identifier appended to the prefix
- BCO version: This is the version of the BCO, as recorded on the Provenance Domain
"object_id": "https://biocomputeobject.org/BCO_000001/1.5"