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: 15
Hash: 193c0581718829d9523674b65253079b360071b3dadc5873e4d24305a94a95ad
Previous block: 1faec8423043ec98968608823620b36ae8bc8c7b5ef2c1485d17d90cef04569c
Next block: 68856deceb8a73483b87085ecee464fbbd13b45f8a6d076da385deb20f681ad0
Weight: 864
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597870
Stripped size: 216
Size: 216
Nonce: 0
Merkle root: fce56d1b7b3021067a6d6e69bdcbeb0d9007c665fe9b40984a31ed35ec7c5cdd
Median time: 1701597869
Difficulty: 4.656542373906925e-10
Confirmations: 2229
Chainwork: 0000000000000000000000000000000000000000000000000000000000000020
Bits: 207fffff