It existed since November. It is not only possible but I did such a search (and found one such transaction, from a developer at Etherscan, who had seemingly not

It existed since November. It is not only possible but I did such a search (and found one such transaction, from a developer at Etherscan, who had seemingly noticed something awkward but not realized it was broken). Search my post-morten for "etherscan" and it should come up!