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: 103
Hash: 46b99bc37ecfb4c300d8ad32cfbb4850e525fd61980718db9b9657393abafa07
Previous block: 032ef4e249b0126a3899b55339bbe0694ecf80eaf047f07b352a02e7466abaa7
Next block: 725d6f55520d202ef307cb119393572253ab40c8feb6ace02466780e7e943c77
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597884
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: 05f12011167fb373642dffff1d12796bd9f35846963a095c95d6eebaf65e51f5
Median time: 1701597884
Difficulty: 4.656542373906925e-10
Confirmations: 2141
Chainwork: 00000000000000000000000000000000000000000000000000000000000000d0
Bits: 207fffff