Is Nano a Blockchain?

I love how fast Nano is and the no fees, but how is Nano a Blockchain? If I'm right a Nanowallet is just personal database and the Nano network is linking all the personal databases together... it's great, but not a Blockchain. Or am I missing something?

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Lol LN claiming same things as Nano: "LN tx throughput is only limited by hardware upper bounds"

Correct.LN tx throughput is *only* limited by hardware upper bounds and understood laws of physics - both of which apply to everything else it could be compared to.It’s very exciting.— storms (@austor...

NANO -0.67% · techcrunch.com · 6h

Why are we not on this list?

Coinbase is the most conservative exchange in cryptoland, largely because it operates in the U.S. under the watchful eye of the SEC. The $8 billion-valued company trades fewer than ten cryptocurrencie...

NANO -0.67% · medium.com · 10h

Essentials of consensus in cryptocurrency

Central to all cryptocurrencies is their consensus algorithm: how do network participants agree on which transactions are valid and which are counterfeit. Cryptocurrencies achieve consensus through a…