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: 861
Hash: 57a0fb391da9aa6fd50ed9aae6029aa9213c47c9b00345bb99369357addafb11
Previous block: 7a53b353934e1edc54c333a2c00199cc7255831fdf844da37604a7c390b5c679
Next block: 66cf25cbc24c61e540d7dfbd23fab7baf35757e300e292ef68689aaa5d53a426
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857812
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1a257ccfa2c58b8b90c14896b6c9680e376164f32f08292bcedb3e150e1cbe08
Median time: 1707857811
Difficulty: 4.656542373906925e-10
Confirmations: 1383
Chainwork: 00000000000000000000000000000000000000000000000000000000000006bc
Bits: 207fffff