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: 1470
Hash: 35ef08dd878cf71a27d3a4fe174d0e558c716afea105e4a37d3858909a76ce1d
Previous block: 31e07e7e315d7b22f46727d274538b4c4fe5e3f9d116c1d150de0e558cbae1e0
Next block: 2261eb3f0adffa747abd4e1b0dbe2a22acbed740654b425a666b15e06f82ebe1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697652
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 69b7e540080b4decb311713f8501e1f30a31c6c445ec03fd3ef923780a561d31
Median time: 1718697652
Difficulty: 4.656542373906925e-10
Confirmations: 774
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b7e
Bits: 207fffff