PHONE
Alex’s device
Ready
CWI COMMUNICATIONS LAB
Sent once.
Seen everywhere.
Message offline, retry freely, and read from another device. Every action keeps one stable identity and one server position.
ConnectingChecking isolated staging
0messages
0read receipts
0push jobs
Not runload proof
Not runpush proof
AUTHORITATIVE CONVERSATION
Alex ↔ Blair
No committed messages yet.
TABLET
Blair’s device
Ready
Local-first queue
Unsent work survives a reload and remains visible until the server accepts it.
One operation ID
Retries reuse the original identity, so a weak connection cannot duplicate a message.
Personal receipts
Read and archive state belongs to each recipient, not to a shared global switch.
Transactional push
The durable notification and its push jobs are created together or not at all.