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: 2104
Hash: 552348b654ab8b94a8b3d1b9b343829ec65545e9e4a37119fee6b1ffe101b89a
Previous block: 09db50e5a264f36e32ffdfca845fd404424211a0840fa3cc3c3fe1cc231c3925
Next block: 6b0423ebd6e264bbb73decc1899e75cf48ebb0743b6c34d9a843ec44f0426fcb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964787
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: ef2b80dcc3c0bf5f28809838964b1a5f90b5e8026acdf2a4968368493cc455b7
Median time: 1728964786
Difficulty: 4.656542373906925e-10
Confirmations: 140
Chainwork: 0000000000000000000000000000000000000000000000000000000000001072
Bits: 207fffff