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: 1051
Hash: 7753ff8a0c0ed568bc479373b9e9a40a7cf69a6280b971d35da6b8e8facff0bb
Previous block: 2ac4eba0d857da8b10f2256ea62b98cbed2e20b3c8c8863c31b2503e1c5305c3
Next block: 263b969ecb18f2f63a03fbd5a52ed677641eb65ff7971738a683fccadb4b310f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857844
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ef2e2e1ae01c8b03d1896fa293dfde40f4f0706718c4168ecfab69ceaa15141e
Median time: 1707857843
Difficulty: 4.656542373906925e-10
Confirmations: 1193
Chainwork: 0000000000000000000000000000000000000000000000000000000000000838
Bits: 207fffff