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: 1532
Hash: 79f5512ae8d1ff0e70637a3209edb16cf05cca410132be3896897249b77a8a98
Previous block: 0d3d520b49907fb96bf08520def7f27f8db78847de662f2af4ace95aee376d76
Next block: 0a46c3a9a065d59fda05115f83517d62da918e03e8d0237c9f2fc9f517284a17
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697663
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e257b068e562c0ecaefd8a818c7c963ec11f1f7756cbc9607a0646f5dba1750a
Median time: 1718697662
Difficulty: 4.656542373906925e-10
Confirmations: 712
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bfa
Bits: 207fffff