- `/r/children/<INSCRIPTION_ID>`: the first 100 child inscription ids.
- `/r/children/<INSCRIPTION_ID>/<PAGE>`: the set of 100 child inscription ids on `<PAGE>`.
- `/r/metadata/<INSCRIPTION_ID>`: JSON string containing the hex-encoded CBOR metadata.
- `/r/sat/<SAT_NUMBER>`: the first 100 inscription ids on a sat.
- `/r/sat/<SAT_NUMBER>/<PAGE>`: the set of 100 inscription ids on `<PAGE>`.
- `/r/sat/<SAT_NUMBER>/at/<INDEX>`: the inscription id at `<INDEX>` of all inscriptions on a sat. `<INDEX>` may be a negative number to index from the back. `0` being the first and `-1` being the most recent for example.

Note: `<SAT_NUMBER>` only allows the actual number of a sat no other sat
notations like degree, percentile or decimal. We may expand to allow those in
the future.

Responses from the above recursive endpoints are JSON. For backwards
compatibility additional endpoints are supported, some of which return
plain-text responses.

- `/blockheight`: latest block height.
- `/blockhash`: latest block hash.
- `/blockhash/<HEIGHT>`: block hash at given block height.