diff --git a/docs/protocol-v0.md b/docs/protocol-v0.md
index 1f0cef5..412e489 100644
--- a/docs/protocol-v0.md
+++ b/docs/protocol-v0.md
@@ -145,6 +145,36 @@ A "block transfer" message is sent back in response to a "block request" message
 |---|---|
 | protocol version = 0 (BE) | 2 |
 | capable version = 0 (BE) | 2 |
-| type = 4 (BE) | 1 |
+| type = 6 (BE) | 1 |
 | list position (0 <= x < 1024) (BE) | 2 |
 | transaction | 148 |
+
+## Client to Node message packet formats
+
+### Mining task request (Client -> Node)
+
+| content | size (bytes) |
+|---|---|
+| protocol version = 0 (BE) | 2 |
+| capable version = 0 (BE) | 2 |
+| type = 7 (BE) | 1 |
+
+The node should answer to a "Mining task request" with a "Mining task response"
+
+### Mining task response (Node -> Client)
+
+| content | size (bytes) |
+|---|---|
+| protocol version = 0 (BE) | 2 |
+| capable version = 0 (BE) | 2 |
+| type = 8 (BE) | 1 |
+| timestamp (unix time in seconds, BE) | 8 |
+| previous hash | 32 |
+| difficulty sum (BE) | 32 |
+| transaction (optional) | 148 |
+
+The node tells the miner "timestamp", "previous hash", "difficulty sum" and "transaction" for the new block.
+
+The miner fills "nonce", "message" and "miner pubkey" on its own.
+
+When a miner finds a block, it sends a "block transfer" message to the node.