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: 1562
Hash: 5b95af03b16875446382ad679be05b00221a0bbaea7c6ba4b8a4d53fe33f6af4
Previous block: 2f5268419e322874f5520fbc7e8252f6aab82e41ad5b8f3ddca816a55b8a3fbd
Next block: 081d1804938c8e9b6ce620b486bd65986e0d50e05043ed6e09ba1eae2be9184e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697668
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8177ccfcc95e1a46097ac1ea92239aa3f79f66f921e40c7b46e7f3480a65cf7c
Median time: 1718697667
Difficulty: 4.656542373906925e-10
Confirmations: 682
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c36
Bits: 207fffff