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: 75
Hash: 3ddbdddd0d0ef65a8da77f4593b839a0596d2945cf7d28858fb503041ed8f1d9
Previous block: 105b2c0450a55bdfb99d8a755c266fe2db65902755e58a39b2c8836fe8c5d103
Next block: 564f16bf5ac031ad7917b34e0f158c4340f2390b26cf7e6ae7e1c7ccae847559
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597880
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: f402eea7ed7ca098de6123b85fa6025bb5b6b98b7d44ca2c2aa2f9bac11198d0
Median time: 1701597879
Difficulty: 4.656542373906925e-10
Confirmations: 2169
Chainwork: 0000000000000000000000000000000000000000000000000000000000000098
Bits: 207fffff