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: 1244
Hash: 35397953a226dad92b245f3862312dca3669d3c3d90906e8b17b7f63e7aa1703
Previous block: 4886c27c66934a035d96e29c0ce154daf0f881ca92f57e02f5856a86396c0e32
Next block: 21ba69beb72cd07e972f153a889e0ca5ce4e65714927dca187b7ee2a3c4138ea
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697615
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d9d4067b4c89815d91c6b55974ab7c11d0fc9dba7baeca340de7b5ea52122cd8
Median time: 1718697614
Difficulty: 4.656542373906925e-10
Confirmations: 1000
Chainwork: 00000000000000000000000000000000000000000000000000000000000009ba
Bits: 207fffff