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That's not normally what people are currently calling blockchain. That's just chained hashing, which has been around for 30 years at least. You should look at
by jnwatson 8y ago
That's not normally what people are currently calling blockchain. That's just chained hashing, which has been around for 30 years at least.
You should look at Merkle trees. They are a component of Bitcoin and many other cryptocurrencies.