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: 976
Hash: 15cbe92fb4f6f17cf69ca42b3c9cf1c842c0285d0d8b2935985fa2bac55612bc
Previous block: 32d9fd2ab197b5d20450493da4064fe238489bef815c6db5d590ee120a217f35
Next block: 0e3474b0be861e778ed00e8cbb4121a6a5d408f3b911244b669b57fc516156c6
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857831
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 6362c1ae0b4bcbcd55935093aaccccb3876bc6758897f3176a968b46d8ee14fd
Median time: 1707857830
Difficulty: 4.656542373906925e-10
Confirmations: 1268
Chainwork: 00000000000000000000000000000000000000000000000000000000000007a2
Bits: 207fffff