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: 789
Hash: 1f622de2a1071ed62c358f79995f8c06f80181e98ea4510e498f6b0888275cfd
Previous block: 1c87ba1bc15428ef1a966afd98ca3ed60f18ba1fb1f65ca016b50f7d2fe1567d
Next block: 538fd95369d91fd8e659679aa89c7656c6c637841d4518d5f7ea5f54f16d4ff5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864275
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 60279c8d3161f3c14242d8cc43327d680d325e43ce5e1cfb9bf0bdf567c233ec
Median time: 1701864274
Difficulty: 4.656542373906925e-10
Confirmations: 1455
Chainwork: 000000000000000000000000000000000000000000000000000000000000062c
Bits: 207fffff