Each execution in an AgentPROV corpus has an identifier such as ex_7uz2oys57hugtsueixylme4fl5. The provenance graphs name the nodes of that execution with IRIs of the form https://w3id.org/agentprov/exec/<execution-id>#<local-id>.
These IRIs are identifiers. They are not individually dereferenceable. Each execution is described by the corpus that contains it; corpora are released on Zenodo with DOIs. The corpus manifest (corpus.json) and index (executions.jsonl) map execution identifiers to their records.