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: 1286
Hash: 4fba0ebf6132905c0804ea01302438573dbc2edda2f94f0355acc06d8c3a1231
Previous block: 40f219d304128a8666d3dc2798f5a1cffb4420244e93ed30b7c1392e48a6ffef
Next block: 7985de73451053ccac94c1d09cc2425c5a14a01ee25b0ae43f40c25efedbb712
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697622
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 6e8af33a595f497a017212034bca5cad92b88154687d16faa5b978e5f2fc1ff0
Median time: 1718697621
Difficulty: 4.656542373906925e-10
Confirmations: 958
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a0e
Bits: 207fffff