Hello.

How is possible to create new coinbase (new block) without any transaction?

Example:
https://www.blockchain.com/btc/block/0000000000000000001eccb495a1e7f5c5f61403a16bd1e4fa34f2b84f636ae1
https://www.blockchain.com/btc/block/0000000000000000001dff4f97a36d184dcc64e238f304b9f92e485c49de199b
https://www.blockchain.com/btc/block/0000000000000000001e70f6e3ccdce60ec21c3a3a2243c7b2ed8b4a0b84adb1

Any idea?

Thank you.