BrettPhillips on Nostr: hzrd149 - question about blossom: If the unique identifier to a blob is the hash of ...

hzrd149 (nprofile…9a9l) - question about blossom: If the unique identifier to a blob is the hash of the blob, does this mean only one npub can upload a specific blob/hash? Meaning only one npub could have ownership over the blob storage for say the Bitcoin Whitepaper. Is there a way for copies of the same file to be attributed to multiple npubs?