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: 496
Hash: 69fdcd3f831451552f2df14abb630b03cbc2cbc30f76dc14a44e6d156f1d9965
Previous block: 523c552a00db85b7d5c997e7bee4e80ba2e829914b2df12614a08fcc9d66fd34
Next block: 65c71f5abf08d5265436e6427de58c6d06f67ca50707a15b9ac76d29ec535767
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864226
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d6189ad7460550ff292d6d4e6e5ca8fd202b73a0c0f5519827d07e041eeda257
Median time: 1701864225
Difficulty: 4.656542373906925e-10
Confirmations: 1748
Chainwork: 00000000000000000000000000000000000000000000000000000000000003e2
Bits: 207fffff