Usage patterns
身分を明かすto reveal one's identity
He finally revealed his true identity.
身分を隠すto conceal one's identity
The prince walked through town concealing his identity.
身分が高いto be of high social standing
She was born into a family of high social standing.
身分を証明するto prove one's identity
You need to prove your identity to enter.
〈人〉の身分を保証するto guarantee someone's status
The company guaranteed his status.