Arbitrary access to already confirmed transactions

Arbitrary access to already confirmed transactions

This link mentions that

"[getdata] can be used to retrieve transactions, but only if they are in the memory pool or relay set - arbitrary access to transactions in the chain is not allowed..."

But can't an SPV node do the following to have the arbitrary access to a transaction T (I am assuming that the SPV node knows the block hash H of the block B containing T):

  1. set a bloom filter using filterload for T at some full node
  2. send getdata request with type MSG_FILTERED_BLOCK and block hash H
  3. then in response, the full node will generate two messages for the SPV node: first, a merkleblock of B; and second, the transaction T (as mentioned here and here)

Doesn't this mechanism actually gives arbitrary access to transactions?

https://ift.tt/2TYWreS

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