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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2063
Hash: 7d24d852f2b5130f0745a9bb0df85ea0b3fabc17948e16e692f8ce34a3e3dda1
Previous block: 4d2df0d28abd3bddad13517ef257a7e4cbfe9d83132d08c885c7a79f95f2a02d
Next block: 667a4fe3d82d4ebdecc87892e96186f2035fea75d46394fe546a228c6ac3002b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964780
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: e0bc636b6194f52d60a43e5ee45b4e748c7bd6f05a5fdaf17f8027b86f07992b
Median time: 1728964780
Difficulty: 4.656542373906925e-10
Confirmations: 181
Chainwork: 0000000000000000000000000000000000000000000000000000000000001020
Bits: 207fffff