So, I notarized a document via the notary.bitcoin.com service and it has received two confirmations. However, I don't see the hash of the document in the transaction record:
https://www.blocktrail.com/BTC/tx/9be7e28b50fe472c1b2fafe7b7032b0c2eba1098d1547b460a76f18218283ede .
Usually in OP_RETURN ...