Certificatul de autenticitate confirmă elementul de identificare.

Because -ul is the definite article in Romanian, attached to the end of the noun.

• certificat = a certificate
• certificatul = the certificate

Romanian usually puts the definite article at the end of the noun, unlike English, which uses a separate word such as the.

The same thing happens in:

• elementul = the element

So in this sentence, both the subject and the object are definite:

• Certificatul = the certificate
• elementul = the element

They both take the masculine/neuter singular definite article -ul.

Both certificat and element are neuter nouns in Romanian. Neuter nouns behave:

• like masculine in the singular
• like feminine in the plural

So in the singular definite form, they look masculine:

• certificat → certificatul
• element → elementul

This is very common with Romanian neuter nouns.

Here de means something like of or for, depending on how natural the English translation is.

So:

• certificat de autenticitate = certificate of authenticity
• element de identificare = identification element / element of identification

In Romanian, noun + de + noun is a very common structure.

It often works like English:

• carte de istorie = history book
• sală de clasă = classroom
• act de identitate = identity document

So in your sentence, both de autenticitate and de identificare are noun phrases built with de.

confirmă is the 3rd person singular present tense of the verb a confirma = to confirm.

The subject is certificatul, which is singular, so the verb must also be singular:

• eu confirm = I confirm
• tu confirmi = you confirm
• el/ea confirmă = he/she/it confirms

So:

• Certificatul ... confirmă ... = The certificate ... confirms ...

The final ă is part of the normal verb form here.

Because Romanian verbs agree with the subject, not with the direct object.

In this sentence:

• Certificatul de autenticitate = the subject
• confirmă = the verb
• elementul de identificare = the direct object

So the verb is singular because certificatul is singular.

English works the same way:

• The certificate confirms the element not
• The certificate confirm the element

Yes. It is the thing being confirmed, so it is the direct object.

You can identify the basic structure like this:

• Certificatul de autenticitate = subject
• confirmă = verb
• elementul de identificare = direct object

Romanian often allows flexible word order, but this sentence uses the standard subject–verb–object order, which is easy and neutral.

Because pe is usually used before specific human direct objects, not normally before inanimate things.

Compare:

• Văd profesorul. = I see the teacher.
  Here many speakers use pe profesorul because it is a person.

But with an inanimate noun like elementul, Romanian normally does not use pe:

• confirmă elementul de identificare

So the absence of pe is completely normal here.

No. autenticitate is a noun, meaning authenticity.

That means:

• autentic = authentic (adjective)
• autenticitate = authenticity (noun)

So certificat de autenticitate literally means certificate of authenticity, not authentic certificate.

If you wanted authentic certificate, you would use the adjective:

• certificat autentic

But that would mean something different.

Yes. identificare is a noun meaning identification.

It comes from the verb a identifica = to identify.

So:

• a identifica = to identify
• identificare = identification

That is why element de identificare means something like identification element or element used for identification.

Yes, but the meaning would become more general or less specific.

Compare:

• Certificatul de autenticitate confirmă elementul de identificare.
  = The certificate of authenticity confirms the identification element.

• Un certificat de autenticitate confirmă un element de identificare.
  = A certificate of authenticity confirms an identification element.

• Certificat de autenticitate without an article can also appear in titles, labels, or headings, but not usually as a normal complete subject in this kind of sentence.

So in your sentence, the definite forms suggest that both things are specific and known in context.

A rough pronunciation guide is:

cer-ti-fi-CA-tul de au-ten-ti-ci-TA-te con-FIR-mă e-le-MEN-tul de i-den-ti-fi-CA-re

A few useful points:

• ă is a central vowel, somewhat like the unstressed vowel in sofa
• ci in autenticitate sounds like chee
• ce usually sounds like che
• stress often falls near the end in longer words, but it is best learned word by word

Word-by-word rough guide:

• Certificatul ≈ cher-ti-fi-CA-tul
• autenticitate ≈ au-ten-ti-ci-TA-te
• confirmă ≈ con-FIR-muh
• elementul ≈ e-le-MEN-tul
• identificare ≈ i-den-ti-fi-CA-re

Yes, Romanian word order is more flexible than English, but the original order is the most neutral.

Standard order:

• Certificatul de autenticitate confirmă elementul de identificare.

You might sometimes see different orders for emphasis, but they are more context-dependent. For a learner, the safest pattern is:

subject + verb + object

So this sentence is a good model of normal, straightforward Romanian syntax.