markdown git是区块链吗？

Posted 2021-05-05

https://news.ycombinator.com/item?id=9436847  
https://www.google.com/search?q=git+vs+blockchain  
https://stackoverflow.com/questions/46192377/why-is-git-not-considered-a-block-chain  
https://medium.com/@shemnon/is-a-git-repository-a-blockchain-35cb1cd2c491  
https://stackoverflow.com/questions/46192377/why-is-git-not-considered-a-block-chain  
https://en.wikipedia.org/wiki/Merkle_tree  
https://en.wikipedia.org/wiki/Hash_chain  

```
wtf=navigaid
for((i=0;i<=999;i++)); do wtf="$(md5sum <<< $wtf | tr -s ' ' | cut -d ' ' -f 1)"; echo $wtf; done | cat -n | head
```

expression identity check && merkle tree: https://github.com/packagemain/expreduce