Impact of Omitting Merkle Trees in Blockchain Discussion

I’ve been digging into Merkle trees in blockchain recently. They seem super important for keeping transaction data organized and safe in the Bitcoin network. They help miners spot any tampered transactions and prevent duplicates. It also makes data transfer across the network pretty smooth.

Wait a sec, but Bitcoin doesn’t use encryption. And what do you mean by data identification? It’s more like pseudonymous, right? Without Merkle trees, wouldn’t SPV reading be harder since you’d be stuck downloading the whole block?

Without Merkle trees, the whole setup gets messier. Every transaction would need to be stored separately which bloats the blockchain. Plus, without them, verifying transactions means checking each one individually. Slows everything down, right? Merkle trees let us verify inclusion without exposing sensitive info, so we’d totally lose efficiency.

I’ve got a few questions about this: 1. Full nodes verify all transactions anyway, so how does removing Merkle trees slow down verification? 2. Pruned nodes just save the recent block and UTXO, so how does that change? 3. Why would fees go up without them if transaction and block sizes stay the same?

The thing is, Merkle trees help check and verify large amounts of data fast, and they make it easier for miners to detect tampering.

True, full nodes do verify everything. But without Merkle trees, they’d check the whole block instead of just the relevant transaction. Merkle trees create a structure where transactions are hashed together, which allows for quicker checks on only the parts needed.

I don’t get it. You’re saying full nodes need to check the whole block without Merkle trees, but isn’t that already what they do? Seems like a weak point since they check everything anyway.

Can you explain how not having Merkle trees leads to congestion and centralization? Merkle trees don’t change block size limits, right? And full nodes already handle the full block, so it shouldn’t slow things down much.

Merkle trees are there for transactions in each block. They make sure all transactions in that block are valid. There’s a specific process for ordering transactions before hashing them. That’s why we hash two at a time.

Looks like you missed my main point. Full nodes do utilize Merkle trees. ASIC miners are built for efficiency in hashing, meaning they use Merkle trees for verification too.

Each transaction stands alone. Bitcoin doesn’t use Merkle trees to eliminate transactions; they verify each one as it comes.

You sure you researched this? They’re essential. The Merkle root in the block header shows that all transactions remain unchanged after the block is made. A hash used for this is not forgeable and keeps the header size small.

I still don’t see your perspective. ASIC miners don’t verify stuff, they just do SHA-256 hashing. And full nodes do check transactions before they enter blocks.

Exactly. Without Merkle trees, you lose that summary info in block headers. It’s like trying to confirm if books are real when you don’t have the whole library list. Merkle trees let pruned nodes summarize data and save space.

Got it. Your view of verification seems broader than mine, that’s what caused the confusion.

Instead of a compact hash, you’d only have a transaction counter. With a hash function like SHA-256, there’re ways to optimize it for SPV. Like giving someone an initialization vector for verification.

Interesting point you bring up about hash construction. That could indeed play into how we deal with transaction validation.