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: 1874
Hash: 2af6721f77cb58cb642f352d2279624fc4e763c1ce395a33599e283223f043d8
Previous block: 1b0e824ec8d61364b96ee08a3b891a4e8fcf674b2e62260530d2acec1a680577
Next block: 0a8e053a7960899ad45d3eadd6cc1af4c7673eecf3e4597cd03fec14ce302c65
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159236
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: c03c915702d3d1856584b2776c7e0a659de6912d967bfd25670869e93d51245c
Median time: 1719159235
Difficulty: 4.656542373906925e-10
Confirmations: 370
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ea6
Bits: 207fffff