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. mkrgsKuFE

Height: 1595
Hash: 1cb50b952702889b7938e57864a0ed65a624e07d2fe5048a7343a00c0839d997
Previous block: 29609ed184d172baa055ee119b3cb1e9d0dad4eb305fa3cc5462d6590208bd6d
Next block: 7daba2d416a0d31c0a6243e471ffb76a0bbd0850b7d78fe5eed74d879e46176a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1708932135
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 0f01af2a9ee46a2480438b58177f30531df20a19287f5934d39c9b18b0d4ecdc
Median time: 1708932134
Difficulty: 4.656542373906925e-10
Confirmations: 14
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c78
Bits: 207fffff