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: 2495
Hash: 20f96dd0c1ca3cbaadaedabc69ffdfc04a5a0180aee039468d4d058a373cc984
Previous block: 386824e79c3df17586c99ef84ce2db0bbaf8532cb137bda81a960596f7adf5a0
Next block: 3b0b09aca9c9604f380a5645932da56386593c5dcfe5837f2ba448b0024d499a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847302
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 3172f4889acc52e12f0ed92771912f30137e1bca9c2a2c7e347732df7ee68e27
Median time: 1743847302
Difficulty: 4.656542373906925e-10
Confirmations: 148
Chainwork: 0000000000000000000000000000000000000000000000000000000000001380
Bits: 207fffff