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← GTIN Checksum AuditCONTENT HISTORY

Update to GTIN Checksum Audit

Snapshot Nov 2, 2026 · 06:00 UTC · version 1.0.4

WHAT CHANGED

Product listing or positioning changed

Full description — Now says: Spot invalid product barcode numbers before you add them to a product list.

Observed in the public listing; claims come from the publisher.

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All fields and original values.

Full description

Before

Oct 24, 2026 · 12:40 UTC

Checks supplied GTIN-8, GTIN-12, GTIN-13 and GTIN-14 text for length, digits and checksum. A valid checksum does not establish ownership, assignment or a genuine product. No registry lookup.

After

Nov 2, 2026 · 06:00 UTC

Spot invalid product barcode numbers before you add them to a product list.

Long description

Before

Oct 24, 2026 · 12:40 UTC

Checks supplied GTIN-8, GTIN-12, GTIN-13 and GTIN-14 text for length, digits and checksum. A valid checksum does not establish ownership, assignment or a genuine product. No registry lookup. Uses explicitly supplied structured inputs. Se...

After

Nov 2, 2026 · 06:00 UTC

Spot invalid product barcode numbers before you add them to a product list. Paste your GTIN barcode numbers as text. Check their length, digits and final check digit. See which numbers need a closer look, while keeping any leading zeros....

Short description

Before

Oct 24, 2026 · 12:40 UTC

GTIN Checksum Audit

After

Nov 2, 2026 · 06:00 UTC

Check product barcode numbers

Brand color

Before

Oct 24, 2026 · 12:40 UTC

#1463EC

After

Nov 2, 2026 · 06:00 UTC

#8D1B42

Compare saved observations

Download comparison JSON
Full technical diff · 14 changed fields

changed /release/description

BEFORE
"Checks supplied GTIN-8, GTIN-12, GTIN-13 and GTIN-14 text for length, digits and checksum. A valid checksum does not establish ownership, assignment or a genuine product. No registry lookup."
AFTER
"Spot invalid product barcode numbers before you add them to a product list."

changed /release/id

BEFORE
"pluginrel_0f342020243c8191bfa20ba579d723be"
AFTER
"pluginrel_c1f97166f9fc8191a7536c7abb3c4813"

changed /release/interface/brand_color

BEFORE
"#1463EC"
AFTER
"#8D1B42"

changed /release/interface/capabilities

BEFORE
[
  "Prepare gtin checksum audit"
]
AFTER
[
  "Check product barcode numbers"
]

changed /release/interface/composer_icon_dark_url

BEFORE
null
AFTER
"https://files.openai.com/content?id=file_00000000d9f082118e2b00caffe44bdb"

changed /release/interface/composer_icon_url

BEFORE
"https://files.openai.com/content?id=file_000000009e58820787bc67a747982be5"
AFTER
"https://files.openai.com/content?id=file_00000000a210820788a5d34b28b4aac5"

changed /release/interface/default_prompt

BEFORE
"Help me prepare a gtin checksum audit."
AFTER
"Check these product barcode numbers for errors."

changed /release/interface/default_prompts

BEFORE
[
  "Help me prepare a gtin checksum audit.",
  "Review my inputs for gtin checksum audit."
]
AFTER
[
  "Check these product barcode numbers for errors.",
  "Which GTIN numbers have a wrong check digit?"
]

changed /release/interface/logo_url

BEFORE
"https://files.openai.com/content?id=file_00000000f0ec8211ad42cbdd88ce279d"
AFTER
"https://files.openai.com/content?id=file_00000000a35482119e9cbdae03f987ec"

changed /release/interface/logo_url_dark

BEFORE
null
AFTER
"https://files.openai.com/content?id=file_0000000001648211971e55df67a221fb"

changed /release/interface/long_description

BEFORE
"Checks supplied GTIN-8, GTIN-12, GTIN-13 and GTIN-14 text for length, digits and checksum. A valid checksum does not establish ownership, assignment or a genuine product. No registry lookup. Uses explicitly supplied structured inputs. Server computations are transient; the standalone website computes locally in your browser. Review the output before exporting it. No persistent account records, external source retrieval, sending, transactions or paid model calls. CSV/JSON review and export are available on the standalone website. MCP requests are capped at 128 KiB and computed responses at 256 KiB; individual field and record limits also apply."
AFTER
"Spot invalid product barcode numbers before you add them to a product list. Paste your GTIN barcode numbers as text. Check their length, digits and final check digit. See which numbers need a closer look, while keeping any leading zeros. This checks the number's maths, not who owns it or whether the product is real."

changed /release/interface/short_description

BEFORE
"GTIN Checksum Audit"
AFTER
"Check product barcode numbers"

changed /release/keywords

BEFORE
[
  "gtin checksum audit",
  "catalog and product data",
  "worksheet",
  "reviewed inputs"
]
AFTER
[
  "check product barcode numbers",
  "gtin checksum audit",
  "catalog and product data",
  "worksheet",
  "reviewed inputs"
]

changed /release/version

BEFORE
"1.0.1"
AFTER
"1.0.4"
Full snapshot data
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  "connector_id": "asdk_app_6ad1efe2047081919b5d44fbcc888e6b",
  "created_at": "2026-10-18T07:23:25.320920Z",
  "discoverability": "LISTED",
  "id": "plugin_asdk_app_6ad1efe2047081919b5d44fbcc888e6b",
  "is_template": false,
  "is_template_instance": false,
  "name": "duopore-public-gtin-checksum-audit",
  "release": {
    "app_ids": [
      "asdk_app_6ad1efe2047081919b5d44fbcc888e6b"
    ],
    "app_manifest": {
      "apps": {
        "duopore-gtin-checksum-audit": {
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          "required": true
        }
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    },
    "app_templates": [],
    "description": "Spot invalid product barcode numbers before you add them to a product list.",
    "display_name": "GTIN Checksum Audit",
    "id": "pluginrel_c1f97166f9fc8191a7536c7abb3c4813",
    "interface": {
      "brand_color": "#8D1B42",
      "capabilities": [
        "Check product barcode numbers"
      ],
      "category": "Productivity",
      "composer_icon_dark_url": "https://files.openai.com/content?id=file_00000000d9f082118e2b00caffe44bdb",
      "composer_icon_url": "https://files.openai.com/content?id=file_00000000a210820788a5d34b28b4aac5",
      "default_prompt": "Check these product barcode numbers for errors.",
      "default_prompts": [
        "Check these product barcode numbers for errors.",
        "Which GTIN numbers have a wrong check digit?"
      ],
      "developer_name": "DUOPORE VENTURES PTE. LTD.",
      "logo_url": "https://files.openai.com/content?id=file_00000000a35482119e9cbdae03f987ec",
      "logo_url_dark": "https://files.openai.com/content?id=file_0000000001648211971e55df67a221fb",
      "long_description": "Spot invalid product barcode numbers before you add them to a product list. Paste your GTIN barcode numbers as text. Check their length, digits and final check digit. See which numbers need a closer look, while keeping any leading zeros. This checks the number's maths, not who owns it or whether the product is real.",
      "plugin_category_id": "productivity",
      "privacy_policy_url": "https://duopore-public-tools.ch-kae88.workers.dev/privacy",
      "screenshot_urls": [],
      "short_description": "Check product barcode numbers",
      "terms_of_service_url": "https://duopore-public-tools.ch-kae88.workers.dev/terms",
      "website_url": "https://duopore-public-tools.ch-kae88.workers.dev/tools/gtin-checksum-audit"
    },
    "keywords": [
      "check product barcode numbers",
      "gtin checksum audit",
      "catalog and product data",
      "worksheet",
      "reviewed inputs"
    ],
    "onboarding_skill_name": null,
    "requires_local_executor": false,
    "skills": [],
    "version": "1.0.4"
  },
  "scope": "GLOBAL",
  "status": "ENABLED"
}

SHA-256 of public snapshot: adb8d15eeb1d367a619c7c2afe66ae048b5188ef19ec171886d6aeedb6171420