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: 259
Hash: 6af385c604714936d4d2d41e3c42b50576e24c8b38453abe43a3fa878b4c4960
Previous block: 6a3d2025cd92802f8a01be3b86ad610ec84e3bc086f179569ff4f52d8ffad6f8
Next block: 2dc02add355135b799c9b9316b56783fa9c31b5c474627ba744048ab0f7bcc44
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597910
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: e4b7d7e64ec19eebf7a066e8af92264be6d65fc51ae1d1fc850f8c527f37f292
Median time: 1701597910
Difficulty: 4.656542373906925e-10
Confirmations: 1985
Chainwork: 0000000000000000000000000000000000000000000000000000000000000208
Bits: 207fffff