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: 898
Hash: 1bf5776bba36e316d77df9817c0bd8976b5c87e235fb66a295753215e322aa0c
Previous block: 4147c18ed8f4a52890ca8d9305c77823f6a0211dd471582791e4ec9759293fcd
Next block: 2117cea5ec5948c2fcdc93f7015cb59e92bc168f4796dc5dca24185b14bad252
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857818
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5eb41120005f542141d065c19527bb0ba785ea1b853c57817f530670eb792136
Median time: 1707857817
Difficulty: 4.656542373906925e-10
Confirmations: 1346
Chainwork: 0000000000000000000000000000000000000000000000000000000000000706
Bits: 207fffff