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: 1878
Hash: 48f26cd67c48eaedd161c398d5eca0607d24f48d62d0b5bf8e7283eaa1718055
Previous block: 0756f92097cf53fb85a1d1c384caeb4f2fdbdc7385fc4b8a96de43ece2e4f73b
Next block: 6e1bb4ab7d3904a2fa5c99d8c574aa9c0b23fcb5e0e95e69a5f6d5195ba5a047
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159236
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 27eacb6ecb9a1eb3ae20ebb7508d122d2147763c872a79fcf6de5888991e9d7d
Median time: 1719159235
Difficulty: 4.656542373906925e-10
Confirmations: 366
Chainwork: 0000000000000000000000000000000000000000000000000000000000000eae
Bits: 207fffff