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: 1007
Hash: 444b98802637e12cf3703ceb74a5422426c4e921d5568eb9729a5506954dac51
Previous block: 75dd52ab03936a8ef0fd3f068bab60cf95f94287add2941ff5ff91be16d0500e
Next block: 15d98d1d81130cf1fdd69af122fc1e90fb869a918a1b66c8935736bfe971351f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857836
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5b8ed6eed8d5027b3e7d1af8875ff9015a0803fcd6ecb385d7af994590b64214
Median time: 1707857835
Difficulty: 4.656542373906925e-10
Confirmations: 1237
Chainwork: 00000000000000000000000000000000000000000000000000000000000007e0
Bits: 207fffff