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: 815
Hash: 7c93db3686f35af47a5806008912df35252a55b7efb71a1cf310282a0dc01348
Previous block: 60ba255c2cc4a979e88f83da906462542c60276f8f38f332761e76cb25128d74
Next block: 2d8dcb6aded2b173f941da6974395d39b74ede03fc2a3da751278a24baa09e94
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857804
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 273be7c61b1c293e75b5f5acce3469925f23bb8cb6dc8c07484b641c7766e5d4
Median time: 1707857803
Difficulty: 4.656542373906925e-10
Confirmations: 1429
Chainwork: 0000000000000000000000000000000000000000000000000000000000000660
Bits: 207fffff