JWT questiion, usage across different servers

JWT.io
1

Hi all,
we have a de-central system, mostly RDF based. We have different programs loading RDF (we wrapped them in docker) and a small community of people providing RDF data under different domains/servers.
It’s like a decentral huggingface, i.e. different softwares loading different distributed datasets.

The way we are thinking to implement this:

  1. Central keycloak: Each user get’s different attributes that manage what they are allowed to access.
  2. each user get’s a JWT token with this additional claim:
"access": [
    {
      "artifact": "https://example.org/dataset1",
      "until": "2025-04-01"
    },
    {
      "artifact": "https://otherdomain.org/dataset2",
      "until": "2024-10-01"
    }
  ],
  1. JWT tokens are valid for a couple of months, the “until” part is scoped to the individual servers/domain
  2. users take thier JWT Token and give it to their different softwares/docker that will consume different sources/datasets, getting access to different servers via the same JWT token
  3. datasets are published by different providers on different servers/domains, using nginx module, that does a verification request to the central keycloak (whether token is valid)

My questions: is this a JWT use case, i.e. was JWT designed to handle this? Is using the same JWT token across distributed servers bad?