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: 1174
Hash: 118782ffecd2976b088c1bfc38752e48c0578382d00378a6e0df2c648d61b505
Previous block: 5f161ddca4ee66ff483848e4654fe8019001de99e0d5ffee804f4ab8425161d9
Next block: 140608ee6e80e23aefb23adb267af683554f0beaf70164881864957bf6188d08
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857864
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 5df56be74eb04d2f3054fa5cc65c113c35aa1a586ca316bee96231e7201c8c0c
Median time: 1707857863
Difficulty: 4.656542373906925e-10
Confirmations: 1070
Chainwork: 000000000000000000000000000000000000000000000000000000000000092e
Bits: 207fffff