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: 486
Hash: 2303254e0ec5c02b0f45f133cd7e772d4110ef42b176e2eb734ba7172bbe6bc2
Previous block: 03f83832d3f3c613c3d51abb709074c6ef797dba03048e794241e74046499fed
Next block: 739a1d7af8f897c6c3517c87440b54e51efc28f156a251ebc2d827cb9a841426
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864224
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: dabe9670bb23ea8275404448e615021f3c69efe516945b761c42a3d60a46f4d1
Median time: 1701864224
Difficulty: 4.656542373906925e-10
Confirmations: 1758
Chainwork: 00000000000000000000000000000000000000000000000000000000000003ce
Bits: 207fffff