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https://github.com/bstnbuck/simple-v-blockchain
The first Blockchain written in V!
https://github.com/bstnbuck/simple-v-blockchain
blockchain cryptocurrency pow v v-blockchain v-crypto vlang vlang-crypto
Last synced: about 1 month ago
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The first Blockchain written in V!
- Host: GitHub
- URL: https://github.com/bstnbuck/simple-v-blockchain
- Owner: bstnbuck
- License: mit
- Created: 2020-08-10T14:22:12.000Z (over 4 years ago)
- Default Branch: master
- Last Pushed: 2024-05-03T20:53:16.000Z (8 months ago)
- Last Synced: 2024-05-03T21:56:11.937Z (8 months ago)
- Topics: blockchain, cryptocurrency, pow, v, v-blockchain, v-crypto, vlang, vlang-crypto
- Language: V
- Homepage:
- Size: 28.3 KB
- Stars: 4
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
[](https://github.com/bstnbuck/Simple-Go-Blockchain/blob/master/LICENSE)
# Simple V Blockchain
>**Entering some transactions while executing now works! This program should only show the principle of blockchains.**
The Blockchain is written in Vlang. As hash algorithm is used SHA-512.
It is also written in Go: [**Simple Go Blockchain**](https://github.com/bstnbuck/Simple-Go-Blockchain)
## Requirements
- Installed [V-Compiler](https://github.com/vlang/v)
## Usage & Build
* Clone the Repo: `git clone https://github.com/bstnbuck/Simple-V-Blockchain.git`
* Build: ``` v -prod -cc {gcc, msvc, tcc} .```
##### Execute the Blockchain:
* If you want to execute the Blockchain run the program in console.
* After that enter the number of leading hex-nulls the hash should have. Should look like this: **4**
=> Otherwise an error will be printed and the program exits.
###### Example output:
```
Welcome to the first Blockchain written in Vlang!
Starting... How much leading hex nulls? 4
How many blocks should be generated? 2
Started: 2020-08-30 20:32:20
New Block Index:1 Timestamp:2020-08-30 20:32:20
HashPoW:000004de82aa861c494fc9d28bca98035fc829eec8c78b807cc73dead2d1e4b3086d856554781a1eba245fc6356db6ca472e0769fd0e65338eb6c9662551d5f5
Text&Nonce:W5EsII9d10693428218265332150
PrevHashHeader:e21b0b95ceca64fd49a17b04507e34ab77896855cffe5122c195d818d9ca393aedcc4d5644a2001cabd4ddcc2d57a88100b335d6ab90b01bb6ed7e9700b33804
BlockHash:56d73c8ba17aee888430c838d275f2cd41486378466a1edb972b02b23cb1f2479ea828249bb17e467bcb554ec6fa831aefe983da1e5e8b6aaced4700f12a5c5a
Data:
New Transaction Timestamp:2020-08-30 20:26:00
From:W38sILJd To:W78sIBNd
Transfer:1.96292
New Transaction Timestamp:2020-08-30 20:26:00
From:W78sIKBd To:W1AsID1d
Transfer:12.9919
New Transaction Timestamp:2020-08-30 20:26:00
From:WwosIJ1d To:W6ksIJRd
Transfer:31.3365
New Transaction Timestamp:2020-08-30 20:26:00
From:W0EsIBld To:WwwsIFpd
Transfer:32.717
New Transaction Timestamp:2020-08-30 20:26:00
From:W9AsIHFd To:W9ksIDFd
Transfer:75.9
>> Block is valid! <<
Stopped: 2020-08-30 20:32:20
Time to make new Block: 161ms => 0sec
Count: 7826
Hashrate: 48 H/ms (Hashes per millisecond)
All Blocks generated! Press ENTER to continue...
```
##### Execute addTransaction:
* If you want to make Transactions switch into addTransaction and run the program in console with `v run .`.
=> Enter the number of Transactions you want wo generate.
###### Example output:
```
Starting... Generate transactions automatically? [1] = automatically, [99] = Stop
1
[AUTO] How many Transactions should be generated?
10
[AUTO] Finished! Any more? [1] = yes [2] = no
2
Press ENTER to continue...
```
### Information
* The Proof-of-Work function uses a string with a incremented Nonce as hash operators.