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. mkrgsKuFE

Height: 1599
Hash: 745b3901e58b3f7d01d1bdcbd34ddbb91c52795e6b058b1bd71c7a20d385e866
Previous block: 1974ec04513d1b51769ad0a1d015e5887e7eb96f14b34888f813db17b99dde6d
Next block: 266668af95e16736953f8084971e31b089972fbd0bbde22a68ec945b482de8a4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932136
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bed91e75d7aa19b1eed757dba7474edf14759b2c6076074646346259a7379acb
Median time: 1708932135
Difficulty: 4.656542373906925e-10
Confirmations: 10
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c80
Bits: 207fffff