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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 1869
Hash: 68cbff97f61684a4b9f9924375df4c27b75dc430b27ec2ac97d5ccb2f4c52792
Previous block: 4ab92d6c8082cbdd5963d47d8638d51e92470634eebfc132bb8677c585e2ea41
Next block: 08fb389fb4affff25f90cad25d8246f19b9c1d00708bfa45d14ad4c8249da9fb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159235
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d3a2a679523efe2472c67b747035291a0a2177eae2cf3e52b36c188d1f3af09a
Median time: 1719159234
Difficulty: 4.656542373906925e-10
Confirmations: 375
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e9c
Bits: 207fffff