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: 774
Hash: 1b64ab548c02212a8b6d029f84d6cf38280b83238b4f36b8bb58ea38a3a77d33
Previous block: 1a9faaf8912b8959189945b5e2c03ff5b8e569a53fd764b5d2bc61477d41f57d
Next block: 2c10aad15f3849d5490fedd7cd52dcdcd05a1dd2a4d69ebc964d7e99fd627759
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864272
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c191092f3c28106d1351d8028c07c1bdeac0e685dc66419c05c6c5bf4a22e341
Median time: 1701864272
Difficulty: 4.656542373906925e-10
Confirmations: 1470
Chainwork: 000000000000000000000000000000000000000000000000000000000000060e
Bits: 207fffff