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. mgqFp9Dhy

Height: 2226
Hash: 0f7b59b8713ad65b12ad595b7bfc2679d876ca7aa13227f0b03f11dd7c07455c
Previous block: 63506ed1afd7444ed1d04ac817386f303bf1ac6b01055831b720294cae8698c8
Next block: 70c7ad2680ef8f43f2054fdaa61a870fca2a9503d1bb03b0028fb96fcadc4127
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964808
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: b5f6c9ce6d5c394eaf4ac594eab72b7f845cc9fd137c9f28f0b655eee3d5aea0
Median time: 1728964807
Difficulty: 4.656542373906925e-10
Confirmations: 18
Chainwork: 0000000000000000000000000000000000000000000000000000000000001166
Bits: 207fffff