Some technical explanations:
- Address 1L1UduuGPZ8ttGe59F2w9tTEumQFhtxiuT, base58 decoded, separated the last 4Bytes checksum: 00d08175a8f7d52324279706dae9d132e17a1bfce8 8c7b316e
- The first 4-Bytes of the SHA256x2 hash of the above's left part should be equal to the right part (checksum): 8c7b316e.
- So let's get: SHA256[SHA256(00d08175a8f7d52324279706dae9d132e17a1bfce8)]: 8c7b316c28e25f67a1b027243d1b9558c15a7efb10e8e283c2ce9e12f89f794a
- The first 4-Bytes of the above are: 8c7b316c which isn't equal to 8c7b316e.
- With that, the address is invalid.
It's been proven beyond reasonable doubt by experienced forum members like you that the OP is a scammer, who obviously didn't know that we have extremely knowledgeable crypto geniuses who can detect a scam from milles. I wouldn't dwell on the OP bursted plans but on these technical explanations that you have outlined, this is my first time of seeing anything like it, and I'll like to learn about it. I'll be very grateful if you can share a link on how to learn and understand these technical calculations, thanks.