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: 812
Hash: 5c692b452e451bc9eaa7c13bc1df72f3be47c5cf3ac5070a1dfc92fd3d68d1ea
Previous block: 30cd4f88a3d20921fe84e591fff5c5fec651919e0025aa93cb25af7f9816d277
Next block: 6ba1abeb85de7b0a1db139524855a2172efd581a0d3a52afa54f190bdb0dd79a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857804
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: dff79243baad5bef6bc88771f0b0af87cc4ac152e5a4b2ebfb8c76f3b0057d1f
Median time: 1707857803
Difficulty: 4.656542373906925e-10
Confirmations: 1432
Chainwork: 000000000000000000000000000000000000000000000000000000000000065a
Bits: 207fffff