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: 2538
Hash: 0c78b00ebfdb5a5691d5e6dc543a634ead6aff03c0e0dee218deabb12c8519d1
Previous block: 3a5a7be25a7441c5094900ff0087df111f2167c4dfc8a98b963444dea465b898
Next block: 6e7006b2d88ee314b21fa9739df8b728d214d7f94fbf72044b6df32ec3327e08
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847310
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 60a65655e19ffa9735b1711e5d27545a94276e5af17c1c7e8eb287de22bc7db2
Median time: 1743847309
Difficulty: 4.656542373906925e-10
Confirmations: 105
Chainwork: 00000000000000000000000000000000000000000000000000000000000013d6
Bits: 207fffff