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: 1733
Hash: 565da696eef32725973036024bac83858b275a550641c761c884a79ed541fbb7
Previous block: 405c095d72d234d8fa7eed457023ce953be51a0c505de5d2d75e7f9ffd4132e8
Next block: 78634a574c5a75abe91a0dea5eefc926d06eaf22ddcf331d2e9e9599d5a2d563
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159212
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 09ed75819221a78c2bca92555558aefc263888d39f7157fdbf3b1fa14e04d80d
Median time: 1719159211
Difficulty: 4.656542373906925e-10
Confirmations: 511
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d8c
Bits: 207fffff