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: 770
Hash: 6a2def1c2b363f128e9246f57a1dc3a4ffccb82859179fd3bf17a1083342fb14
Previous block: 65d16fa7991464b585e287bf24b30b7f565140479976023bc96e89875be65a5e
Next block: 0b0568e0c7fe99023a6f9d84ca2355ae06eba5599adae455959ecdf5fc4f971b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864272
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: dfd6ba9b6be2ce5a347b52e0051b13388b8125824cb0951d2a2054b035a0f475
Median time: 1701864271
Difficulty: 4.656542373906925e-10
Confirmations: 1474
Chainwork: 0000000000000000000000000000000000000000000000000000000000000606
Bits: 207fffff