Electronic Product Codes: GTIN, Serial Numbers, and RFID Encoding https://yenra.com/electronic-product-codes/ Updated September 11, 2026 Purpose: Diagnose identity and encoding discrepancies. Use licensed production identifiers and the current partner encoding agreement. The separately linked GS1 demonstration JSON is for tests only. Instructions: Preserve raw input first. Compare decoded fields with the authoritative source. Record pass/fail plus the evidence; never repair an identity by guessing. Object type / agreed identifier scheme: Source record and responsible organization: GTIN (preserve all digits): GS1 Company Prefix and explicitly confirmed length: Serial as text (preserve leading zeros): Supported tag encoding / serial constraints checked: Encoder and decoder versions: Filter value and reason: Tag/chip model / EPC memory capacity / other memory used: Reader export field containing EPC payload: Raw bytes or hex / reported bit length / decoder error: Expected pure-identity URI / actual URI: Expected GTIN and serial / actual values: Known GS1 demonstration passes round trip? Evidence: Physical label and source record agree? Evidence: Duplicate reports of one object or duplicate identity on multiple objects? Correction / affected labels / reconciliation owner: Retest and application acceptance result: Reference: https://ref.gs1.org/standards/tds/2.3.0/ Demonstration: https://rfidcoder.gs1.org/ui/apidoc Keep actual production exports private.