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: 124
Hash: 093af6bfc42028796e36b4602f01862c8d1b9346a5e0d66d554297400fd562af
Previous block: 2904fa41623e60de07b87030505f0fe5bd2c9f10df760eaee98ad8bb5d3d389a
Next block: 28ce4a5704f733fbaf5c5c5a092da9bbc19fb1046efa7af253fd3980d8f246cc
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597888
Stripped size: 217
Size: 217
Nonce: 3
Merkle root: e259a191657c92f5edf6e9546c694ab4539d5640af85c50abf491653b0090ca5
Median time: 1701597887
Difficulty: 4.656542373906925e-10
Confirmations: 2120
Chainwork: 00000000000000000000000000000000000000000000000000000000000000fa
Bits: 207fffff