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0 pointsinter_netuser4y ago0 comments

> As for auditing the the integrity of the code or binary, it is signed by GPG keys > hosted on public key servers accessed using X509 certificates pinned by a a > couple of trust anchors preloaded in your OS. So much for distributed consensus...

You can literally validate the entire chain with a simple python script. Millions of those on github.

>Not to mention very few people actually bother to verify the full chain (360GB and counting) from genesis.

Absolutely wrong. The chain is validated in its entirety upon first sync. 100% from genesis to tip.

>Bitcoin for example still relies on a list of hardcoded nodes for bootstrapping clients.

It doesn't. Longest valid chain with most work is the canonical chain. Hardcoded seed nodes exist to speed up the discovery.

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tromp4y ago

> You can literally validate the entire chain with a simple python script.

I challenge you to present a "simple python script" that implements the exact bitcoin consensus rules (as codified in bitcoin core). Bitcoin is not all that simple and there's a nontrivial amount of complexity in bitcoin script alone [1].

> The chain is validated in its entirety upon first sync. 100% from genesis to tip.

The default behavior is to skip signature verification for all signatures before some relatively recent block [2].

[1] https://github.com/bitcoin/bitcoin/blob/master/src/script/in...

[2] https://github.com/bitcoin/bitcoin/pull/9484

Kranar4y ago

You're misunderstanding the default behavior which is fine becaue it's commonly misunderstood and discussed. At any rate signature verification is not skipped by default, what assumevalid skips is script verification. Everything else including UXTO, proof of work, the transactions themselves, are validated.

dlubarov4y ago

That seems a bit pedantic; the client itself prints

> Assuming ancestors of block %s have valid signatures.

when using -assumevalid. I agree it's imprecise, but it's not exactly wrong, since skipping scripts implies skipping signatures.

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