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: 2519
Hash: 54daea0e3bccc343229c897628f4f5db16cb946bca923bdd951c30f485160cff
Previous block: 538cc99ea828498ec4ca157b5bbe5ef9d69e512fd3fb4409168e0f65ca501be6
Next block: 5e9fc4cb740f330c37cb7feddde32c7f47ac70f5a7c07f68083b32b80008f122
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847306
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 3f8702faf72a663d3af3276e938269293d89144df165745c4e546ff64bfbfbb7
Median time: 1743847306
Difficulty: 4.656542373906925e-10
Confirmations: 124
Chainwork: 00000000000000000000000000000000000000000000000000000000000013b0
Bits: 207fffff