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: 2385
Hash: 25be1d89749f038c14537453d74c800bddcc8f03fec4144d5bdc27ad89b0f2ab
Previous block: 2696c3a6b8a3e8f9873083fd05a11298845c0d9f749f6b487ccc50e6a9cc0afc
Next block: 403709f7602486d9b06c24bc7d0e8b0aaca5ffaf6de8fa57bd873751797c744b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847284
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: a72df6effdc3243905e1fa20bcf255e511921925b7adfe59308f1328e39ae7a0
Median time: 1743847283
Difficulty: 4.656542373906925e-10
Confirmations: 258
Chainwork: 00000000000000000000000000000000000000000000000000000000000012a4
Bits: 207fffff