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: 1024
Hash: 2786fb3389051f6cd68b894a1bf072d5fd57227a2e5d4b167b8fb49230f6b71e
Previous block: 446b4a30c3517bc9210ffa224ccbe839d108f038a6c42a0477a17a7e482b99cb
Next block: 3197c7997010a92fcf4ae145c31fda5d28fccbef75b32b9270a32ab3f84c8237
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857839
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 15148ec010b74806056f09050db22a0d6361f0bcf53802659d352da746f24c25
Median time: 1707857838
Difficulty: 4.656542373906925e-10
Confirmations: 1220
Chainwork: 0000000000000000000000000000000000000000000000000000000000000802
Bits: 207fffff