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: 1140
Hash: 3994d33d8ca341a311e4799002cf148a261c608b33f478f1f90a0986f1237c25
Previous block: 628d0d67c332fed225ec69204b2414b281eb283ffb2e206b11134faa5b25a3f9
Next block: 18e84c014ca429265eeb1cca72c4e61e435056a7382bdf9eed485111539b538d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857858
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b6de5f418936d00f20639f65c87936909d4228eebd0d5857c693fe1b874a7243
Median time: 1707857858
Difficulty: 4.656542373906925e-10
Confirmations: 1104
Chainwork: 00000000000000000000000000000000000000000000000000000000000008ea
Bits: 207fffff