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: 1327
Hash: 59fb3e1ab8d2d8fdd29c11c2d9f6e3a8d57214aa24f9b74914c38321b870fa08
Previous block: 424e2ed19b2ac0ad22cad7926398063921b55a9c88522f89075811c90332a5f7
Next block: 627cfe28f7435bf9b0da366d1a98682cba112b4bab66de43a0c59aa4f37d07c1
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697629
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7ab9ed1783e13ed4b349aba88b590aa0bff2dbf6a2ac38abf5585f2772d19e82
Median time: 1718697628
Difficulty: 4.656542373906925e-10
Confirmations: 917
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a60
Bits: 207fffff