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: 947
Hash: 7ffe96b03195f155fee4d138a4d0a0fbb05f6b7e00e85221e1359cab8c3aa72c
Previous block: 7e795ec0c3baeae5790d6118d123c9ae7eb61d5d2961668d269fe204b04d88b1
Next block: 720e3b0631e972294376d60d13da1966701ea6879d0b132be6001cf903097c48
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857826
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ad5c9230b4d8ff30718d5bf074fd0136f7505218194f92eed3219a8fdcc039e7
Median time: 1707857825
Difficulty: 4.656542373906925e-10
Confirmations: 1297
Chainwork: 0000000000000000000000000000000000000000000000000000000000000768
Bits: 207fffff