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: 1091
Hash: 666b370fdfcb4ebfb036665cddb67dce1a0b73e2d42794638786b72d6fe4d084
Previous block: 79889b9f66f6ff57b2f7794a010bab58a1cdc5c7b7075c360a69facf8a930388
Next block: 62a4fdc40ea5669730a5a8c844e1455f30aebdf46fb7bbd88b08d355c08c7803
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857850
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: df3e6fa132d5e3d8e8b4d300d5cc35ae0f742bed622d1f0bd0979d62d946ff74
Median time: 1707857849
Difficulty: 4.656542373906925e-10
Confirmations: 1153
Chainwork: 0000000000000000000000000000000000000000000000000000000000000888
Bits: 207fffff