[xvector]

How can physical deletion work with the Merkle Tree mechanics?

Do you just store the hash but not the underlying KV pair?

[jeroiraz]

the hash tree, transactions headers, payloads and index are all independently stored. So it will be possible to physically delete payloads and still be able to build all the proofs (but not being able to provide the actual values).

Truncating transaction headers should be possible, but each physical deletion will be associated to a real lost of data, so proof generation may be affected on deleted data.