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: 858
Hash: 0e82b1ec19c7bcfc0221aacf0bb84b91b0035ec5c1b9b36a1a8d2b02dba36946
Previous block: 73995f8080edc288721fa4f8bebe118f00451bb0ef04707cad7c30f639dd7bb0
Next block: 3730fdef1a65391796474ea78f82456d36341dcb4172fdb9a5ee47fe28ae0c8e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857811
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0ed5623759dcf630495e028e1e1a1f782dafa20664e240f6b9e64976c33e3582
Median time: 1707857811
Difficulty: 4.656542373906925e-10
Confirmations: 1386
Chainwork: 00000000000000000000000000000000000000000000000000000000000006b6
Bits: 207fffff