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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 658
Hash: 7835f40bc2f93ea9e0579798b5b70025db1c9ac070660bd99891acc364e848c3
Previous block: 397552b636f3636f529a7d55919e3f5134be98e2b03af4db4099b6065c32f14f
Next block: 3cdaa4e3a62ff1bee914d69c1ad82fb5d12f9bb8567263daf81a559cf039f194
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864253
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 6af8451420570dec0e316ad6f7d55193ecfdc1bdba6010271fbbb8af99ead32f
Median time: 1701864252
Difficulty: 4.656542373906925e-10
Confirmations: 1586
Chainwork: 0000000000000000000000000000000000000000000000000000000000000526
Bits: 207fffff