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: 304
Hash: 6b3dce9d93cead027b3730a51d8ba3ef417908f9b0f4a18df6dd866efb1f231a
Previous block: 0e7afe9855b32908240cbfa47f2199f3c38161c9d0798e6f31d28c4fe430223c
Next block: 565366d1a33353ae2ae47fa91ff1c79c9940a577915a8f05e8e97b3136ac1a67
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597918
Stripped size: 218
Size: 218
Nonce: 2
Merkle root: 147665b6b58773a2d92d74b7f8dec251322a657ecd3a3eec26c2ed4ab094e03b
Median time: 1701597917
Difficulty: 4.656542373906925e-10
Confirmations: 1940
Chainwork: 0000000000000000000000000000000000000000000000000000000000000262
Bits: 207fffff