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: 1406
Hash: 07db4119d56431be285878369442bc7c4cb8aa3be75edaad435de5201177b067
Previous block: 6e0bd3cbb9549560ec4270ecc633672278c7c2623d2f682a7fc8beb94f5ca464
Next block: 4e89cfb4fcd973578a6eaea3dfe770f78df7a1d2069e440093cbb5b18b4ecd41
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697642
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: da0ab6be86f611c13680941b8de77f5a615d376c9bcfeaa346d86f33bbca84e2
Median time: 1718697641
Difficulty: 4.656542373906925e-10
Confirmations: 838
Chainwork: 0000000000000000000000000000000000000000000000000000000000000afe
Bits: 207fffff