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: 1026
Hash: 1fbaea830816694a176babe936e141d9e52b2dcbc64668da5e7e0dcc8355a57b
Previous block: 3197c7997010a92fcf4ae145c31fda5d28fccbef75b32b9270a32ab3f84c8237
Next block: 5a9d056a6fb51f298961b7aa2f9c8b672e1305d524321ac8d5baf605026a577d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857839
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: a27d5162d690861892b477f5994d9d4a0ad51a2187db32cd53430156d467e521
Median time: 1707857839
Difficulty: 4.656542373906925e-10
Confirmations: 1218
Chainwork: 0000000000000000000000000000000000000000000000000000000000000806
Bits: 207fffff