tisonkun opened a new pull request, #85:
URL: https://github.com/apache/datasketches-rust/pull/85

   This follows 
https://github.com/apache/datasketches-rust/pull/84#discussion_r2764759992.
   
   I have two questions:
   
   1. Shall we check the seed when creating sketches? Currently, we check only 
when serde, thus if the sketch never serde, we don't have this guard. Not sure 
if check earilier helps.
   2. Since the serialized seed_hash occurs in the middle of the final result, 
I'm curious about the format of earlier serialized sketches. Do they have a 
placeholder 2-byte buffer that is fulfilled in later version? If we panic 
always when the computed seed = 0, then all those old snapshots cannot be read.
   
   cc @ZENOTME @leerho 


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