The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2536
Hash: 48289f3283a35a9c758bf06565b805eef235820d3928de6be94f02a95a4a5e5c
Previous block: 22f700265fd094bf0c24ec20f7ad5c615905c4df500e749e5fdd6956f8be354f
Next block: 3a5a7be25a7441c5094900ff0087df111f2167c4dfc8a98b963444dea465b898
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847309
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 21355d2be1cbb0d47bc5f07f8df619fce91294792c7656bf120f6dbd6bf57577
Median time: 1743847308
Difficulty: 4.656542373906925e-10
Confirmations: 107
Chainwork: 00000000000000000000000000000000000000000000000000000000000013d2
Bits: 207fffff