Number structure
IDN + 000001 + 2026 + 7
A three-letter ISO country code, six unique digits, a four-digit year, and one OPK category digit.
CIN — CULTURAL IDENTIFICATION NUMBER
Understanding the CIN system
CIN gives cultural works a consistent identity so they can be recorded, discovered, and checked publicly.
Identification, not certification
CIN identifies a record in the registry. Administrator approval marks public status, but does not replace community or national authority decisions.
Adaptation of UNESCO 2003
CIN adapts the 2003 UNESCO Convention through community-informed recording and respect for intangible cultural heritage.
Open verification
The public can check a CIN and open an active record without creating an account.