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: 759
Hash: 4b1fbe6b55364a156572a92e44cf96f75295630222c1ffc64d5664b8d2327abc
Previous block: 60dfe28eb986c5176ff1723b3d1b11dd6aa8fd8a274b13589349a99339d2b643
Next block: 05cb746d587a7f9b1321d3a843fca28926f55d44b95465511225be3bdb63630a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864270
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 355632249ef052a22d390c4dbb76896ab3ce6226f3f71fe8b59282db9811ce61
Median time: 1701864269
Difficulty: 4.656542373906925e-10
Confirmations: 1485
Chainwork: 00000000000000000000000000000000000000000000000000000000000005f0
Bits: 207fffff