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: 2000
Hash: 11f4c5a2fb9f564677acb1a126eec8685ec148f19783426bd1414d6deaee6390
Previous block: 4a0ad33b312f1d8ec9012f2b68f615c63bb81c62cb9888e91581fd3cdfd413c2
Next block: 6afb550f1cbda383543bf93685b8e552e1cdeb6fed0a0c68e7e9edd667b9013e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159257
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 660fb95dba505bf69c2c5ead70851894f2639b6e5e0dc80f44ebab1d1cfa7000
Median time: 1719159256
Difficulty: 4.656542373906925e-10
Confirmations: 244
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fa2
Bits: 207fffff