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: 2001
Hash: 6afb550f1cbda383543bf93685b8e552e1cdeb6fed0a0c68e7e9edd667b9013e
Previous block: 11f4c5a2fb9f564677acb1a126eec8685ec148f19783426bd1414d6deaee6390
Next block: 21181db852f127108360e427bf74759948c8d9bc69d3aa8ae94d434555e9f362
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159257
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 1abcc28c8d57b4aa55056b948058d1e65ddcc1c5bde51498fb67473c92185db0
Median time: 1719159256
Difficulty: 4.656542373906925e-10
Confirmations: 243
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fa4
Bits: 207fffff