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: 973
Hash: 4472111292919eff2bc953d90fad4d2f0fd0e6b129e8bfac4ffdb30723c3d7c5
Previous block: 72d24cd831b6813c434627975493afa7a442d6703fa34ec34e75720ba251de48
Next block: 6b01f4f627bffa957350b424a10887373a33b6dd4b29affe0af4e73a99903996
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857831
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: e2aef0c516416c524908f909e60654b7819ac2cd7ecead51fe3d525ebb634727
Median time: 1707857830
Difficulty: 4.656542373906925e-10
Confirmations: 1271
Chainwork: 000000000000000000000000000000000000000000000000000000000000079c
Bits: 207fffff