This is supported by the subdomain protocol, but the subdomain registrar doesn’t yet broadcast zone file updates for subdomains (the code simply isn’t written).
However, any on-chain name can broadcast a newer zone file for an off-chain name. For example, you could:
- craft a zone file for
michaelfedora.id that includes a newer zone file record for
- send a
- broadcast the zone file
To do so, you simply create another
TXT record like the one that encodes your
.id.blockstack name, give it the next sequence number (the
seqn= field in the
TXT record), and sign the record with your private key. You can see a working example in this integration test.