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: 127
Hash: 4e4530b6491345c42c4eb6bcd47a89acb503da1c4d77b680e54ff015a8002478
Previous block: 4bc5d9596cddc190bcdf296a6bb12c4734e6f4e0031fc3c899bf6149eabea12a
Next block: 6adc9eed13776dd3b7e511a81a5e6d7bfe75be8462b8b1ad63d156bb0c1f3f6c
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597888
Stripped size: 217
Size: 217
Nonce: 2
Merkle root: e8871c5afe0b1f904ec2a0182766d6de86faa3361047caf4cda69bea30e570f7
Median time: 1701597888
Difficulty: 4.656542373906925e-10
Confirmations: 2117
Chainwork: 0000000000000000000000000000000000000000000000000000000000000100
Bits: 207fffff