# description
A stage boundary endpoint (entry or exit) within a fulfillment, such as pickup, handover, warehouse in/out, border crossing, gate entry/exit, security check, etc. May require one or more proofs/permits/tokens/documents. 

# properties.authorization.description
One or more credentials required and/or issued at this endpoint. Includes machine-readable tokens (QR/URL/OTP) and manual documents (IDs, permits). 