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: 1950
Hash: 2cbcfb71111b7da04f2baa10312d56b50a58f47bb601d7b3231ce77060fc7308
Previous block: 60f8424cb6884b3a721ddbaa9ec35e63f60682479c76a1d6aed5ae5600d1f70f
Next block: 1722ed54792c9e594d5b072412a76d68d625611820f7857608af1ccc6064e286
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159248
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 3a43674a82fa119c8d6e8c5254fdbc6792a01485d9e38b68cc62687261078860
Median time: 1719159247
Difficulty: 4.656542373906925e-10
Confirmations: 294
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f3e
Bits: 207fffff