There is no relation between block and private keys.

But i can explain litlle about private key and public key
You know that you need a wallet to store your virtual coins. And just like a bank account, it has a unique address. It looks somewhat like this(15WrztREKezKUyfSrBwKAnNhq2k7Pnhp5U), depending on the cryptocurrency. It seems like a completely randomly generated a string of letters and numbers but in reality, there is a bit more going on. The first thing you need to know is how these
are created. Anyone can create a new wallet by generating a public and private key pair with a certain algorithm.In the case of Bitcoin or Ethereum that is via an elliptical curve digital signature algorithm.

That’s quite a mouthful, but the take away here is that the algorithm will spit out a private key and an associated public key. These keys are mathematically linked to each other. You can take the private key and derive the public key from it. But you cannot take the public key and turn it into the private one.

 These two keys serve a different purpose. The public key will become your wallet’s address, kind of like your bank account number. public keys can be shared with everyone And the private key is your way of proving that you are the owner of the wallet and thus that you can spend the money inside of it. Private keys must be kept to yourself.

It’s only limited by how fast your computer can generate key pairs. However, nobody will know about the existence of your wallet until it receives some coins.

If want to know more details you can read these four articles:

article 1: https://peakd.com/fortnite/@maxmados/how-bitcoin-wallets-work
article 2: https://read.cash/@Crypto.Maniac/how-does-your-bitcoincash-wallet-works-1644b8c8
article 3: https://www.geekersmagazine.com/everything-you-need-to-know-about-cryptocurrency-wallets-in-2020/
article 4: https://www.infocrusader.com/2020/10/What-is-Blockchain-Everything-Explained.html

I too wouldn't mind knowing this, I thought about it when I spotted this Block for sale in the Collectibles section.

That "block" is the physical representation of the private key containing the miner's reward plus fees for Block number mentioned. Those physical collectibles have their private keys laser-etched and with a hologram covering it. So if you peel it off, this reveals the private key which you can use to claim the "virgin" BTC which was mined in that old block.
This also means that it'll have a bunch of forked coins including 25 BCH, 25 BTG etc etc.

If i understand correctly, OPs question is whether the bitcoin blocks that are viewable on blockchain explorers contain the private key (in some form). The answer is clearly No. Also, Blocks don't have private keys. They have block headers and the all the transaction IDs.

WTF are you talking about? Nothing can control the ENTIRE blockchain my friend? Not the genesis block, not even Satoshi's private keys.

No. You can't even spend the block rewards from the genesis blocks.
Private keys do not have a nonce.
Blocks do not have private keys and blocks also do not have a public key. The main thing that uses a private-public key pair are your addresses, P2PKH, P2WPKH, etc.

People going in different directions. Your crazy if you think genesis keys don't control the chain. You can make any changes and implement new features mint new coins if you hold genesis keys.




 

Unless you have a working example of a genesis key, this is only a a fictional phrase invented for price manipulation

Google search Bitcoin genesis key I didn't make it up. When you create an alt coin you can have genesis block key which gives control tithe chain. I know I have done it 15 times. It's legit its not debatable

Geez someone woke up on the wrong side of the bed this morning. No need to take it personally. The question dies make sense. I asked if Bitcoin blocks have private keys. It is clear to a certain extent they do. When creating an altcoin base on bitcoin you generate a genius block private key which controls that chain. I assume it's the same for Bitcoin

If the alt-coin is based on Bitcoin then it will follow Bitcoin's data structures. In bitcoin, the only thing to "control" is a user's address and wallet using your private keys to sign transactions. Transactions only transfer UTXOs and don't change anything in a historic block. Protocol changes ("control that chain") means changes to the consensus rules. Those generally require an upgrade of the client you are running as well as what the majority is running.

I think you are talking about Ethereum based coins. There you have the concept of contracts that can be over-written by the developer that deploys them to change to whatever they want.

Not not tokens. Coins based on bitcoin