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: 2116
Hash: 744a656e0c5b3f858db9a0fd91273d70c04f5113833ed489d789b5acc75e6f64
Previous block: 2041abb0967fe3f23b36b435d73a7b956b346e6ec9274a28b33c21ac88db8dfd
Next block: 258f5f5c59ae3fd8a83dfb57e6b34e6403c823952a8e26cf009cdb36dbd83bf5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964789
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: be3675a894f5832fa6a209879648a5433494e43ef296c564268c04646d605f11
Median time: 1728964788
Difficulty: 4.656542373906925e-10
Confirmations: 128
Chainwork: 000000000000000000000000000000000000000000000000000000000000108a
Bits: 207fffff