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: 1443
Hash: 17ccb850ccaf7ca4d703c56dac0e5a62eb5f62b0dd1545cad50e78e815ffbbe8
Previous block: 4579c6e430933083eb9501be64a5bdb5cf1568defb0e838569a8e1a31470ea92
Next block: 74f21784a31bcdc4761a085b2853191d524699393ed6f62221ce826f37de44a6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697648
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 45b7ef6983fb035ce6f25c75e949bed1fb0e6717fa09f5a947a8055cf91ad479
Median time: 1718697647
Difficulty: 4.656542373906925e-10
Confirmations: 801
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b48
Bits: 207fffff