Deneb : Change description for blob

[kevaundray]

The current description of blob contains the word blob which seemed kida of recursive.

I changed it to note that its just a seuence of bytes which may uniquely encode the evaluations of a polynomial.

may: because the blob may be non-canonical. In this case when we convert it to a polynomial, it will fail.

[dankrad]

I'm not sure this is a problem. This is not the definition of what a "blob" is, but rather what the Blob data type is. But I think it should be "data blob" rather than "blob data".

In you new description, I am a little confused by "may uniquely encode the evaluations of a polynomial" -- why may? It does, right?

[kevaundray]

I'm not sure this is a problem. This is not the definition of what a "blob" is, but rather what the Blob data type is. But I think it should be "data blob" rather than "blob data".

In you new description, I am a little confused by "may uniquely encode the evaluations of a polynomial" -- why may? It does, right?

Ah fair point re description of Blob data type and not definition. I can change it to data blob.

The may part was to convey that blobs do not need to be canonical -- two blobs could map to the same polynomial if you don't correctly validate the blob

[dankrad]

The may part was to convey that blobs do not need to be canonical -- two blobs could map to the same polynomial if you don't correctly validate the blob

Actually we require them to be canonical in order to be valid Blobs.

[kevaundray]

The may part was to convey that blobs do not need to be canonical -- two blobs could map to the same polynomial if you don't correctly validate the blob

Actually we require them to be canonical in order to be valid Blobs.

Yep, though blobs are not valid/canonical by definition -- if this were the case we could skip the canonical/validation checks