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: 1154
Hash: 4d30400045323b60447cd872291ae1b7a4f5a55f9819b27ecf48600cb6221f57
Previous block: 373dd91d19e9a2a0acbd62b9dadde85db46eff691cf19d164db9bee05c5a9210
Next block: 32cbfddf695b96b9646eee77e69e2a14fe034c5151dc3698765d896e1ce0b73d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857861
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f1f6b5dd921bf58cb866e3a2a84518bccce2ea7602cc358ae4fb3a27c0d3da82
Median time: 1707857860
Difficulty: 4.656542373906925e-10
Confirmations: 1090
Chainwork: 0000000000000000000000000000000000000000000000000000000000000906
Bits: 207fffff