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: 368
Hash: 53f0320ca6b3dcedf450f48d011679a9d6f9d9902fd6959485d3a5a34f654a7c
Previous block: 480207c11fca872c1a9d7290ca81d706d8ad4409dad1acc38732b75ac28bfa5b
Next block: 1640812190323ad16f42b7bfdd9103ca48af19c4a7039f0704c43119e4b8a369
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597929
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 4f189a8534f1021fa95220e79242b9dc7e837074280e91278538edc64e4ab4b7
Median time: 1701597928
Difficulty: 4.656542373906925e-10
Confirmations: 1876
Chainwork: 00000000000000000000000000000000000000000000000000000000000002e2
Bits: 207fffff