SpinStream NFArtifact
One clean path from edit to proof.
Edit → Upload chunks → Preview → Product choice → Stripe Checkout → paid return → Mint → OnlyUno handoff.
Step 1
Edit
Step 2
Preview
No upload started.
Steps 3–4
Checkout → Stripe paid return
Waiting for Stripe paid return.
Steps 5–6
Mint → finalUrl/proof
Step 7
OnlyUno handoff
OnlyUno unlocks only after sealed_success.
Status report
Waiting for preview.