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: 338
Hash: 5a80b3e362d930aa47189e89143cc24601089573aaa4fdfa5a8a3832990d9038
Previous block: 3b091a43371b33dffb9db28ae139305b61e7d3b6e80db5757f6d691a4444c73a
Next block: 43452ef66f9bad8bb1905fcd996e16d387d310969fa81d985ce2ef5589b5d63f
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597924
Stripped size: 218
Size: 218
Nonce: 4
Merkle root: 37900165c7ae27d2002479f6951a2c7e2504cf85c9caeca4aa2b63b7f7986b5a
Median time: 1701597923
Difficulty: 4.656542373906925e-10
Confirmations: 1906
Chainwork: 00000000000000000000000000000000000000000000000000000000000002a6
Bits: 207fffff