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: 1173
Hash: 5f161ddca4ee66ff483848e4654fe8019001de99e0d5ffee804f4ab8425161d9
Previous block: 754715814d6602f7a963dbef4cc98d3b1dd146f9f65c75e33ae189fbffe6b489
Next block: 118782ffecd2976b088c1bfc38752e48c0578382d00378a6e0df2c648d61b505
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857864
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f05e5226e2d6147779f202789dbe84f02214b8cab73087d5883c2977b7597986
Median time: 1707857863
Difficulty: 4.656542373906925e-10
Confirmations: 1071
Chainwork: 000000000000000000000000000000000000000000000000000000000000092c
Bits: 207fffff