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: 1561
Hash: 2f5268419e322874f5520fbc7e8252f6aab82e41ad5b8f3ddca816a55b8a3fbd
Previous block: 792ec49f241230f1df22fa57bf50370b40201381d9cef9dc18ffc0082e27ad65
Next block: 5b95af03b16875446382ad679be05b00221a0bbaea7c6ba4b8a4d53fe33f6af4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697668
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 773391d9b9729d4ed6011b813f0d8d075a822d30ea74a01f385e828c74701d67
Median time: 1718697667
Difficulty: 4.656542373906925e-10
Confirmations: 683
Chainwork: 0000000000000000000000000000000000000000000000000000000000000c34
Bits: 207fffff