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: 886
Hash: 0711939ec922936d8a14722fdfd5322c69173073341da426f1dbd92c631ea30b
Previous block: 2889ba1f1629d521ebe0b8a07975f95987973728acbe6b40d13e05650c5b23e7
Next block: 098e7f1a47675b258e2a3dbf762306c7c6b1ee650b9ca859d4e40dfab027d106
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857816
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 30e44f03ebd21f1a247401c7512b4849e9f357c10c73653bbf5d4997ba0338e5
Median time: 1707857815
Difficulty: 4.656542373906925e-10
Confirmations: 1358
Chainwork: 00000000000000000000000000000000000000000000000000000000000006ee
Bits: 207fffff