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: 2322
Hash: 533b421bf8e292b3276ecd8580ef5c6295170b60eb643526ae00be9a924cd880
Previous block: 184abbec0076455f6463e5ec3b0825c47898c5e5606dbe94ef0198f538df1768
Next block: 205c09bf8ddd6318aadee1fbf34eba3fd90f13033fe2a7223300958aa74c3e24
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847274
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 16623fd1535c580aff84ee88ed8a9e96f1f42dc52618285267fa5cbd8d0fb3f0
Median time: 1743847273
Difficulty: 4.656542373906925e-10
Confirmations: 321
Chainwork: 0000000000000000000000000000000000000000000000000000000000001226
Bits: 207fffff