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: 2593
Hash: 4b1c7d93f772aaff4b7d7b18cd122531b8195331ba0540f0b0655f074babbe06
Previous block: 06eae2f6ec978b67a3009c43b68355cac8505d5f7a7f3075e1959da1a4206ce2
Next block: 3399bf6f3aadce0c01eb891677e42cd6096af3990f3d4a8578bb0d5eac1b48aa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847319
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 58fba6ce36e0ba0bb40fe469adc26c2b63b509a9532730d770d9429bff40def9
Median time: 1743847318
Difficulty: 4.656542373906925e-10
Confirmations: 50
Chainwork: 0000000000000000000000000000000000000000000000000000000000001444
Bits: 207fffff