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: 1146
Hash: 37d8e09babb8ccb98363c9aea9f90037cb5ff0c16a320635c0baa0580ee2b6b6
Previous block: 4a955c62ca3f8c065f3b8a99dd5d493fe03186f1635e7b78f046636831fe80dc
Next block: 1deba862499b99c24f49de4ad1ca9c7c277211517b66c19922199304ffae5f22
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857859
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 81714de32231b1dfc0ae740c2729fa10bb01950166a325d22e30100811ebee39
Median time: 1707857859
Difficulty: 4.656542373906925e-10
Confirmations: 1098
Chainwork: 00000000000000000000000000000000000000000000000000000000000008f6
Bits: 207fffff