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: 275
Hash: 017b981370170dcb396a0563284748d4621e8dd6f3eea4dced77c0b8d16d25b5
Previous block: 76387b9afba97370f5fdd10611cdb9fe9e925fff9c3bf7653445cc0507c6eb0c
Next block: 40c8034bab85e0f5e955adbd67fa4fc976d699d8961205633d6e9fd282f29a6f
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597913
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: f845523d946feeb0b238deca9101247b77deafdc1ccc124cc1d7f716ec528604
Median time: 1701597912
Difficulty: 4.656542373906925e-10
Confirmations: 1969
Chainwork: 0000000000000000000000000000000000000000000000000000000000000228
Bits: 207fffff