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: 315
Hash: 63741df77e826d8bf68debb44653ab44ee82c4821164f4fca2114b0f9f1dd355
Previous block: 3119378a6ce5f4e7f4d9feba4a84b828db2a92a14bd8d66651b3553b87a38fe5
Next block: 0e810852399c7c517bc4ac90c610ecc6d977c1b82ffb5b51e47640eeca9770ae
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597920
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 564c3ae1f60a61f770b1dd6b8e593034dfe43f95046523d65981ef0075b7d573
Median time: 1701597919
Difficulty: 4.656542373906925e-10
Confirmations: 1929
Chainwork: 0000000000000000000000000000000000000000000000000000000000000278
Bits: 207fffff