diff --git a/blockchains/ethereum.md b/blockchains/ethereum.md
deleted file mode 100644
index ab31b48..0000000
--- a/blockchains/ethereum.md
+++ /dev/null
@@ -1,28 +0,0 @@
-## the ethereum blockchain tl; dr
-
-<br>
-
-* **[the ethereum yellow paper](https://ethereum.github.io/yellowpaper/paper.pdf)**
-* the ethereum roadmap:
-
-<br>
-<p align="center">
-<img width="400"  src="https://user-images.githubusercontent.com/1130416/234419153-76ab9f89-00e8-48e7-93c4-c8d880ec2007.png">
-</p>
-<br>
-
-----
-### mnemonics
-
-##### evm execution tl; dr
-
-* in native execution, evm will load the bytecode and execute the opcodes in the bytecodes one by one from the beginning.
-* each opcode can be thought as doing the following steps:
-  1. read elements from stack, memory, or storage.
-  2. perform some computation on these elements.
-  3. write back results to stack, memory, or storage.
-
-##### light clients tl; dr
-
-* light clients receive the block headers, which contain a merkle root (more on this later) that can be used to query full nodes to verify if a transaction is included in a particular block.
-