It's a simple BlockChain Demo. It contains mine and transefer function. This is test result:

/** Trying to Mine block 1... target:00000 Block Mined!!! : 0000080f570ee67ecb319aad3be21b1b49f29c020afc30e75e24ef58c00b8be9 Trying to Mine block 2... target:00000 Block Mined!!! : 0000006715e88491a3cb1ae90147ac51889131e759b498bc3c9ea1ce6fba586c Trying to Mine block 3... target:00000 Block Mined!!! : 0000058ccb599cdd4fa22eae9106533009ad17282ab8cd2ecd941cf116d6bd9d Successful transaction,hash:00000d12f940cb238df8fbd7ba9d458312da6bbfdea9e69865b0c1822743ab67 Blockchain is Valid: true The block chain: [ { "hash": "0000080f570ee67ecb319aad3be21b1b49f29c020afc30e75e24ef58c00b8be9", "previousHash": "0", "data": "Hi im the first block", "timeStamp": 1704769902419, "nonce": 1367155 }, { "hash": "0000006715e88491a3cb1ae90147ac51889131e759b498bc3c9ea1ce6fba586c", "previousHash": "0000080f570ee67ecb319aad3be21b1b49f29c020afc30e75e24ef58c00b8be9", "data": "Yo im the second block", "timeStamp": 1704769908331, "nonce": 389801 }, { "hash": "0000058ccb599cdd4fa22eae9106533009ad17282ab8cd2ecd941cf116d6bd9d", "previousHash": "0000006715e88491a3cb1ae90147ac51889131e759b498bc3c9ea1ce6fba586c", "data": "Hey im the third block", "timeStamp": 1704769909823, "nonce": 10141 }, { "hash": "00000d12f940cb238df8fbd7ba9d458312da6bbfdea9e69865b0c1822743ab67", "previousHash": "0000058ccb599cdd4fa22eae9106533009ad17282ab8cd2ecd941cf116d6bd9d", "data": "Try to transaction", "timeStamp": 1704769909858, "transaction": { "sender": "dsfalkjfdsa", "recipient": "daslfjklsdjaf", "amount": "100BTC" }, "nonce": 2533837 } ] ***/