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: 1787
Hash: 2e0a3929fc2385b542c4c1c0a6f8699a8f1319c5ad2513d9ff568f9183494f09
Previous block: 1936b234d9c7e1d5785253153f674e1f27a5daac5b1cee49dc350a90b92e7cbe
Next block: 22b279cf0a4b71f3344306a35ca1ed61ac4b0df1daa44867c6b496c9a749bd6d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159221
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 64f66af37d9e5fea6aa5446bcfffe9100e44e1ce02933b83670845dc696c518e
Median time: 1719159220
Difficulty: 4.656542373906925e-10
Confirmations: 457
Chainwork: 0000000000000000000000000000000000000000000000000000000000000df8
Bits: 207fffff