user23123: I would like to prove that a certain transaction was in the mempool on a certain date before it got replaced via RBF with another transaction. Is there any service that provides this data?

user-1: 
I would like to prove that a certain transaction was in the mempool on a certain date before it got replaced via RBF with another transaction.

Consider Tx de8ba282831c6d645aa777a35a5b9f2107cbd96913a9cd4c5880420db092e399 as an example.
gettransactionin Bitcoin Core returns:
"time": 1615601043,
"timereceived": 1615601043,
"replaced_by_txid": "f77e6928c1c12bc91858c95b32dab1e493b24cdf3e19c02372aa11e6dc5ec3c9",

Time of this tx: Saturday, March 13, 2021 2:04:03 AM
Got replaced by another tx on: Saturday, March 13, 2021 2:04:11 AM
I am not sure but maybe this information is only available for transactions that belong to your wallet because no other RPC returns  replaced_by_txid.

Is there any service that provides this data?

Couldn't find such information in any of the famous bitcoin explorers. Best I could find was one explorer that shows invalid type for tx which got replaced:
https://tbtc.bitaps.com/de8ba282831c6d645aa777a35a5b9f2107cbd96913a9cd4c5880420db092e399

23123: <p>I would like to prove that a certain transaction was in the mempool on a certain date before it got replaced via RBF with another transaction. Is there any service that provides this data?</p>
 -1: <blockquote>
<p>I would like to prove that a certain transaction was in the mempool on a certain date before it got replaced via RBF with another transaction.</p>
</blockquote>
<p>Consider Tx <code>de8ba282831c6d645aa777a35a5b9f2107cbd96913a9cd4c5880420db092e399</code> as an example.</p>
<p><code>gettransaction</code>in Bitcoin Core returns:</p>
<pre><code>&quot;time&quot;: 1615601043,
&quot;timereceived&quot;: 1615601043,
&quot;replaced_by_txid&quot;: &quot;f77e6928c1c12bc91858c95b32dab1e493b24cdf3e19c02372aa11e6dc5ec3c9&quot;,
</code></pre>
<p>Time of this tx: Saturday, March 13, 2021 2:04:03 AM</p>
<p>Got replaced by <a href="https://tbtc.bitaps.com/c44cca7864271775d648ace0ccdb377247840000ed74a8af0301ce7cc92c3a29" rel="nofollow noreferrer">another tx</a> on: Saturday, March 13, 2021 2:04:11 AM</p>
<p>I am not sure but maybe this information is only available for transactions that belong to your wallet because no other RPC returns <code> replaced_by_txid</code>.</p>
<blockquote>
<p>Is there any service that provides this data?</p>
</blockquote>
<p>Couldn't find such information in any of the famous bitcoin explorers. Best I could find was one explorer that shows <code>invalid</code> type for tx which got replaced:</p>
<p><a href="https://tbtc.bitaps.com/de8ba282831c6d645aa777a35a5b9f2107cbd96913a9cd4c5880420db092e399" rel="nofollow noreferrer">https://tbtc.bitaps.com/de8ba282831c6d645aa777a35a5b9f2107cbd96913a9cd4c5880420db092e399</a></p>
