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: 1104
Hash: 4c2f5542ff4cb67ac6d440128923b99004936e97e0e9c9f88bc47a018fc0de89
Previous block: 7207add492a6459035f080c6a7b4107623f2b9858e26524cbb25aeaf07be5201
Next block: 36ba0af0d3c1eb6ab680f663a45e21c9f824828b776906ddc2f6098f9202dffc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857852
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 6ae2bdbba31b2ee6684246a2bf5130458fb180b1a727c08a687016834c1823d7
Median time: 1707857852
Difficulty: 4.656542373906925e-10
Confirmations: 1140
Chainwork: 00000000000000000000000000000000000000000000000000000000000008a2
Bits: 207fffff