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: 220
Hash: 686d8af68bff4e663f686ac21f16d2985af9acabaa7037b18ab74d18906c3e4b
Previous block: 5b87959d4ee87a43eed44615f6a248f262a713489b91934af5be992aaf3a2784
Next block: 42303c1db81a5869938759fa0b04782c663db15fec6f831dfda34db33364ab6e
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597904
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: e43daa1ec6753460d69ed81b7fa42036b114f372f989e9d8f7091cb9fc9eb609
Median time: 1701597903
Difficulty: 4.656542373906925e-10
Confirmations: 2024
Chainwork: 00000000000000000000000000000000000000000000000000000000000001ba
Bits: 207fffff