feature request: create a dedicated verify transaction/prove sending page

[rating89us]

Currently it's possible to verify a transaction/prove sending in xmrchain.net when you are in a transaction page (for instance https://xmrchain.net/tx/0ce3f3f8efc32636adfb9dbe485f6171753174bf447291956ed9eaeb5730a742), and enters the destination address and transaction key.

But it would be nice to have a dedicated page for this feature, as you can see in https://www.exploremonero.com/receipt and https://xmr.llcoins.net/checktx.html
In the dedicated page, the user should enter the transaction ID, destination address and transaction key.

This dedicated verification/prove sending page could also be featured as a link in the home page.

[moneroexamples]

Hi
I think that current design is better than having it on separate page, since first you search for tx, get all its details and then decode the outputs. If tx does not exist, there is no need to provide any (sub)addresses and viewkeys. In other designs, you don't get any tx details, and you always have to provide (sub)address+viewkey even if tx does not exist in a blockchain.

There is also API that you can use to check verify/prove transaction in one go: https://github.com/moneroexamples/onion-monero-blockchain-explorer#apioutputstxhashtx_hashaddressviewkeytxprove01