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: 767
Hash: 797d12f708b3a7b46cb327f437cee320668e30762d11205fd76a8d9d754ff892
Previous block: 16b0a6024c8b97f572ccb3cc9088b0d97cdaa19ec1fab42c55e754cddd3fab7e
Next block: 56db6c236aab5826c1c7b42350a365bf1fce362b95a992926116d81b5269c3d9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864271
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cdd8ea52660e7a447351eb2a21cf63bd9e100398808353fe30b5b43d5a933f98
Median time: 1701864270
Difficulty: 4.656542373906925e-10
Confirmations: 1477
Chainwork: 0000000000000000000000000000000000000000000000000000000000000600
Bits: 207fffff