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: 1593
Hash: 2336de3e25cca1fa9aa7a7c78af59ab1c1abc1bc897bec0bf6fabaef5d5d6d23
Previous block: 189a3b397bde9739bf9570dc6bf5a38edf283c5c4cab6aa6d5a34b86b434aaa3
Next block: 575b60fdc2cc0e3238385ddd5f52da44a9dd9fcd612301da88bf226c2f65ae1a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697673
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3c8ed0c27d5675ec732d534a5141d6ac2e1d6da4948be4d3d9500153e58b7f1d
Median time: 1718697672
Difficulty: 4.656542373906925e-10
Confirmations: 651
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c74
Bits: 207fffff