{"source":"semconv","version":"1.44.0","attribute":{"id":"host.id","type":"string","stability":"development","brief":"Unique host ID. For Cloud, this must be the instance_id assigned by the cloud provider. For non-containerized systems, this should be the `machine-id`. See the table below for the sources to use to determine the `machine-id` based on operating system.","examples":["fdbf79e8af94cb7f9e8df36789187052"],"namespace":"host","definedIn":"model/host/registry.yaml","usedBy":[{"groupId":"entity.host","groupType":"entity","signalName":"host","requirementLevel":"recommended"},{"groupId":"host.zos","groupType":"attribute_group","signalName":"host.zos","requirementLevel":"opt_in"}]},"history":[{"version":"1.30.0","publishedAt":"2025-01-24T19:11:42Z","kind":"first-seen","detail":"Already present at v1.30.0, the oldest release tracked here (experimental)."},{"version":"1.31.0","publishedAt":"2025-03-11T00:53:13Z","kind":"stability-changed","detail":"Stability label respelled from experimental to development.","severity":"informational"}],"replaces":[]}