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: 1471
Hash: 2261eb3f0adffa747abd4e1b0dbe2a22acbed740654b425a666b15e06f82ebe1
Previous block: 35ef08dd878cf71a27d3a4fe174d0e558c716afea105e4a37d3858909a76ce1d
Next block: 1602ff8efd7d435ec9d3b1b68143e76ec6609cc44dc9a372c8fd0c7322b68375
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697653
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 8292e24cdc8f52c5e43009bf886861fce4ce99300a1dafa78a8f21073f46120a
Median time: 1718697652
Difficulty: 4.656542373906925e-10
Confirmations: 773
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b80
Bits: 207fffff