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. mupBAc74k

Height: 2244
Hash: 66c717a4bb1bedf5ffcec6fdac347b6ddd3442c38e8d948cbff36ca0f4e1c229
Previous block: 0f9404e0954a6fd65b04ad607dfaa609d59406b6fe4cd6579ed6cc77b9568326
Next block: 0ecc0435edaed93a18db808d43d993f7a460431565522f06ad78d993c9fe8de0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480983
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: bddf190ae60e8f620789b4a508538ce4df6eefc785ae13365d4f8a014b0a352b
Median time: 1719480982
Difficulty: 4.656542373906925e-10
Confirmations: 48
Chainwork: 000000000000000000000000000000000000000000000000000000000000118a
Bits: 207fffff