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: 38
Hash: 21dd5a1793791c512d052b7811c6ef952c5e5458ffff0780832689ad78592318
Previous block: 4965749ef0d46586a905a0de0774d56e0aca05e9270590fae4e567523a2c3de5
Next block: 49e27b5c73cf5a3f236a6759df428825b2550348fbdb450896b03843972ee233
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597874
Stripped size: 217
Size: 217
Nonce: 1
Merkle root: 6c514e82be13e1811982aade7308b131211cd349fccfaa34cd02b738b761dd70
Median time: 1701597873
Difficulty: 4.656542373906925e-10
Confirmations: 2206
Chainwork: 000000000000000000000000000000000000000000000000000000000000004e
Bits: 207fffff