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: 2278
Hash: 1f89e85718420b65c6c4064d1bf7a65498b0ef6748073fe288915d66f5f03837
Previous block: 22d2990d6eb0111da8d4c2df8016ae835c83fe8e6e1c4c082ec4a003f73aa55d
Next block: 7485b0d5be12b23a5953c534b30031f56ad2fded667fe46b1f642d2b8be21c8d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847266
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: e5c1f3fa8f704fbb25b4d0c2f660cecc1093801d73aef382087a3a84579ca523
Median time: 1743847265
Difficulty: 4.656542373906925e-10
Confirmations: 365
Chainwork: 00000000000000000000000000000000000000000000000000000000000011ce
Bits: 207fffff