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: 348
Hash: 260b4ef39358b37826cc0020120faaf085fcb0ca090dc3d49dcd2c0b57a03f13
Previous block: 07d47722959d6d423a74d7b43568043bcb5d706481b4300ab77b65e9d7434d59
Next block: 5401ab0ebe089dc7fcc545ebde0fe149065dfddd218c612a13c0a4f886be1ce8
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597925
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: 477649309556757b01a6ddf8c88235a5167d81ee828b93fa1c03f6148873ebbd
Median time: 1701597924
Difficulty: 4.656542373906925e-10
Confirmations: 1896
Chainwork: 00000000000000000000000000000000000000000000000000000000000002ba
Bits: 207fffff