'Why do modern Merkle trees not include a hash at each node like in Ralph Merkle's original whitepaper?
http://people.eecs.berkeley.edu/~raluca/cs261-f15/readings/merkle.pdf
The above is a link to the paper in question. In the paper Merkle suggests attaching a message to each node. Thus the hash for each node would be a hash of the message as well as the hashes of the two leaf nodes. Why in modern implementations do only the leaf nodes hold messages?
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