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: 935
Hash: 508e752121bccb3e60c06c13410e7bb048d2ead3c66c3016f4be25f5e1cbef56
Previous block: 0e3b5cbcd09a5b408a78892cc5ef5e50b0d992ba8c4c88002d5d4331f5d673bf
Next block: 4257c4d43c7a8e0150488fd9e45627e79194de11e8bd787505d92dc5539dfcd0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857824
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: b6ae957a35d85f83c148ee8fdb72c6883c5a834fa1f288ff91ec5ef9d101801a
Median time: 1707857823
Difficulty: 4.656542373906925e-10
Confirmations: 1309
Chainwork: 0000000000000000000000000000000000000000000000000000000000000750
Bits: 207fffff