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: 741
Hash: 6fbba9e867c5d25987072b68d555a8c33c2d743e95bf6e91761ee78710258cde
Previous block: 7074ae2406b789133b06cbaca107222d1bb9108e9987f4bb2930c4827834b2d4
Next block: 523268aba656705deef476a06b94fc72ceeb0182ccb3f2723635932130d59d45
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864267
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 16072d56eca6da7d5f026c3d0915fd8d424014f62c07786374965246a0106297
Median time: 1701864266
Difficulty: 4.656542373906925e-10
Confirmations: 1503
Chainwork: 00000000000000000000000000000000000000000000000000000000000005cc
Bits: 207fffff