Does the 100+ GB blockchain database contain every transaction since the beginning, or only a digest of them?

I've read Nakamoto's paper and I see:

the spent transactions before it can be discarded to save disk space [...] Merkle Tree [...]

thus this question: is the 100+ GB blockchain already the result of a space-saving lossy process?

1 Answer 1


Blockchain contains every confirmed transaction since the beginning. There are some tricks to save disk space of course.

  • What is discarded in the blockchain then, according to Nakamoto's paper?
    – Basj
    Commented Oct 11, 2017 at 12:28
  • In Bitcoin Core's database, there are no tricks to save disk space assuming you run a non-pruning node.
    – alcio
    Commented Oct 11, 2017 at 12:40
  • I mean pruning, but I do not want to mention complicated things in simple answer to a simple question
    – amaclin
    Commented Oct 11, 2017 at 12:53

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