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: 1271
Hash: 024eaa4971f078a9e8fc37616840ecf243557a1b605ebb8d65d7b6ad8ae4fcf9
Previous block: 681d1454320b70eb16c43737134176251743fa973108ff7196f62411a645ee59
Next block: 321840d14ffed6865c50143c86416a988b5779ff4fa4ebf36070e0e9856b702e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697619
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 619e079ebccf11d0351bd43eba2fc129a8dfe29727bcd1fab59165599f71d6c4
Median time: 1718697618
Difficulty: 4.656542373906925e-10
Confirmations: 973
Chainwork: 00000000000000000000000000000000000000000000000000000000000009f0
Bits: 207fffff