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: 2064
Hash: 667a4fe3d82d4ebdecc87892e96186f2035fea75d46394fe546a228c6ac3002b
Previous block: 7d24d852f2b5130f0745a9bb0df85ea0b3fabc17948e16e692f8ce34a3e3dda1
Next block: 3bf74216666836f9679a8bcc5a8666d510460b73f120dcee6c69bf11dba7ba88
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964781
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 977cc9085859ad949982933e1889b26ed2b852a8906aa7775b2adcb7e9bcf7d3
Median time: 1728964780
Difficulty: 4.656542373906925e-10
Confirmations: 180
Chainwork: 0000000000000000000000000000000000000000000000000000000000001022
Bits: 207fffff