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: 967
Hash: 3d9b2efc1af1d94111b751925bb2a4491f4d0e1854b3f0807e5bc99098339af7
Previous block: 28fd6cf39067ac014590127efc77d01adf1d29415707f0a5fbcd8df156fee76d
Next block: 192519df204b1a943996a6dd1fd4c9551d34eb2e1c87bb92f56be8bdebe80a76
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857830
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: f2b38df51918bbb2cdbb4ce1b913bcdd45decc0d5ed522df0ac4c5b077a3b38b
Median time: 1707857829
Difficulty: 4.656542373906925e-10
Confirmations: 1277
Chainwork: 0000000000000000000000000000000000000000000000000000000000000790
Bits: 207fffff