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: 297
Hash: 74e52124f2fdbc9f03f4017d01a033ba8761e14995c667b52ead3c85b8482acb
Previous block: 5c50cb72e22214f41148d328402215d6b0765b4a0f17d5ab44a3631992cf52d4
Next block: 6be8e8bacd12e3aae6d9868924e18df461bbdc397edd9fbeb53233bf2dda0212
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597917
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 37fdc9280e4b578e647227f10dc303628a92ad7babc6bf0af2d50028c08a1147
Median time: 1701597916
Difficulty: 4.656542373906925e-10
Confirmations: 1947
Chainwork: 0000000000000000000000000000000000000000000000000000000000000254
Bits: 207fffff