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: 2572
Hash: 09bd873add37b42e60bd3be0d98b954b3ef99ccbb83bfd0fb9ab5519fc208cc1
Previous block: 6afcdbca54051d3ffa5fd10d60c6c46f4bfd1cdf163c8bda0b8cf3442c4752bb
Next block: 18cfd0d91c5787694fe07618ff8c4e2d35c1cbf503f40bb8820c3790f2159d53
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847315
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f85de7ef59c37531045054d1985f86bcc48553a529e8b6e3682c331b004247b5
Median time: 1743847314
Difficulty: 4.656542373906925e-10
Confirmations: 71
Chainwork: 000000000000000000000000000000000000000000000000000000000000141a
Bits: 207fffff