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: 1230
Hash: 4574e6bebb9a2bb4e31dded9fa73aab1432f202f976870441825f3af83db95f3
Previous block: 106cc27234ec1e0d6aff1e367d8c065c607bc2c95904a703f36ac4da628d0ce5
Next block: 663f4685bfc692f90bcdb094a2eb619573f43f3f2ef9c9cfe762e9562cfdd12c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697612
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: fa476eff53d115afb79f39fbc253d3244d8d9f3c13182d3970d2faefc9a008e8
Median time: 1718697612
Difficulty: 4.656542373906925e-10
Confirmations: 1014
Chainwork: 000000000000000000000000000000000000000000000000000000000000099e
Bits: 207fffff