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: 1102
Hash: 21b0b0f485d0cc054c8221f6793b2efb37ca71094f91653e4e4462883b37c69c
Previous block: 64017de95d426fffd6fb7b37b79a65ee55b79673e7e8f8e62f997101187f0e24
Next block: 7207add492a6459035f080c6a7b4107623f2b9858e26524cbb25aeaf07be5201
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857852
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d99fb737406cec738bed01c882b614a1b5834867bc6a934515e769d0d5be36b5
Median time: 1707857851
Difficulty: 4.656542373906925e-10
Confirmations: 1142
Chainwork: 000000000000000000000000000000000000000000000000000000000000089e
Bits: 207fffff