3 votes
Accepted

Legitimate merkle paths for SPV

If the calculated Merkle root doesn't match any of the block headers then the proof is invalid and the TX may or may not exist. That's the default verification state, same as if you never got any ...
bca-0353f40e's user avatar
  • 1,025
3 votes
Accepted

Who's exploiting Merkle Root?

Why don't just do a SHA256(SHA256(...ALL TXs IN A COMPACT WAY...)) nowadays ? Even if the premise of your question (that using the Merkle structure is useless) is true, this isn't something that can ...
Pieter Wuille's user avatar

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