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: 1454
Hash: 6641b37211c3f50279cedec09190ae8e4f67a6da688669dfee424727be20cdf6
Previous block: 397903abc1a599fa302c304878e1a5b613419fd669d7e124a2ff74a21861b0a4
Next block: 3e272ae5e29a672f57fae5b92869815d5a9b0d41960712681f14e8f6bad70951
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697650
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 87f7f09c0ca214e0ad12e21a901d05370b44e1dd1089ca75d46c83af6971cd46
Median time: 1718697649
Difficulty: 4.656542373906925e-10
Confirmations: 790
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b5e
Bits: 207fffff