└── togett


/togett:
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 1 | use sha2::{Digest, Sha256};
 2 | use std::time::{SystemTime, UNIX_EPOCH};
 3 | 
 4 | #[derive(Debug)]
 5 | struct Block {
 6 |     index: u64,
 7 |     timestamp: u64,
 8 |     data: String,
 9 |     previous_hash: String,
10 |     hash: String,
11 | }
12 | 
13 | impl Block {
14 |     fn new(index: u64, data: String, previous_hash: String) -> Self {
15 |         let timestamp = SystemTime::now()
16 |             .duration_since(UNIX_EPOCH)
17 |             .unwrap()
18 |             .as_secs();
19 |         let mut hasher = Sha256::new();
20 |         hasher.update(format!("{}{}{}", index, timestamp, &previous_hash));
21 |         let hash = format!("{:x}", hasher.finalize());
22 | 
23 |         Self {
24 |             index,
25 |             timestamp,
26 |             data,
27 |             previous_hash,
28 |             hash,
29 |         }
30 |     }
31 | }
32 | 
33 | fn main() {
34 |     let genesis_block = Block::new(0, "Genesis Block".to_string(), "0".to_string());
35 |     println!("{:?}", genesis_block);
36 | }
37 | 


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