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: 367
Hash: 480207c11fca872c1a9d7290ca81d706d8ad4409dad1acc38732b75ac28bfa5b
Previous block: 19792bd4e1afb0dbfec20e96c60684d979ba036e62ec72fb220818f2c29b292b
Next block: 53f0320ca6b3dcedf450f48d011679a9d6f9d9902fd6959485d3a5a34f654a7c
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597928
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: eed59b829349de2d2f96784da80df9915cbefdea0f4e70faca316bcf155ec3f4
Median time: 1701597928
Difficulty: 4.656542373906925e-10
Confirmations: 1877
Chainwork: 00000000000000000000000000000000000000000000000000000000000002e0
Bits: 207fffff