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: 1212
Hash: 67c2d5f31198b811ec0a9a6f258d06107b1b9807ba211b74289153fdd429d053
Previous block: 39672a5a1c433794512b1fc33472580ba9f21983aee8924b5c13e657fbc90950
Next block: 42e62ab354076172e1dc1e07712f41c6c6fe59722d5c029382f28c893f94fe02
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697609
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 881b8b6e15ece1deba620cb2342563990fa7779d48b07896191d9437f504d11d
Median time: 1718697609
Difficulty: 4.656542373906925e-10
Confirmations: 1032
Chainwork: 000000000000000000000000000000000000000000000000000000000000097a
Bits: 207fffff