How to decypher ordinals

I just noticed a very curious block being added to the blockchain just now. It seemed to have a abnormally low fee rate of 1 sat/vb, while the going rate is 80 about now. So I looked closer into it, and even though it had such a low fee rate it was paying around 700$ for the transaction. I noticed it was very large and it has some data in it. I believe I have just witnessed a real life ordinal out there in the wild.

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So how do I decypher it?

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The transaction ID is bd77f96589139cb5f26196d75744a7ce04aaa0f554cd646455b381dfb39930e9