Update to GTIN Checksum Audit
Snapshot Nov 2, 2026 · 06:11 UTC · version 1.0.4
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.
Up to 10 plugins free · no card required.
All fields and original values.
Full description
Oct 27, 2026 · 01:02 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.
Nov 2, 2026 · 06:11 UTC
Spot invalid product barcode numbers before you add them to a product list.
Long description
Oct 27, 2026 · 01:02 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...
Nov 2, 2026 · 06:11 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
Oct 27, 2026 · 01:02 UTC
GTIN Checksum Audit
Nov 2, 2026 · 06:11 UTC
Check product barcode numbers
Brand color
Oct 27, 2026 · 01:02 UTC
#1463EC
Nov 2, 2026 · 06:11 UTC
#8D1B42
Compare saved observations
Download comparison JSONFull technical diff · 14 changed fields
changed /release/description
"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."
"Spot invalid product barcode numbers before you add them to a product list."
changed /release/id
"pluginrel_0f342020243c8191bfa20ba579d723be"
"pluginrel_c1f97166f9fc8191a7536c7abb3c4813"
changed /release/interface/brand_color
"#1463EC"
"#8D1B42"
changed /release/interface/capabilities
[ "Prepare gtin checksum audit" ]
[ "Check product barcode numbers" ]
changed /release/interface/composer_icon_dark_url
null
"https://files.openai.com/content?id=file_00000000d9f082118e2b00caffe44bdb"
changed /release/interface/composer_icon_url
"https://files.openai.com/content?id=file_000000009e58820787bc67a747982be5"
"https://files.openai.com/content?id=file_00000000a210820788a5d34b28b4aac5"
changed /release/interface/default_prompt
"Help me prepare a gtin checksum audit."
"Check these product barcode numbers for errors."
changed /release/interface/default_prompts
[ "Help me prepare a gtin checksum audit.", "Review my inputs for gtin checksum audit." ]
[ "Check these product barcode numbers for errors.", "Which GTIN numbers have a wrong check digit?" ]
changed /release/interface/logo_url
"https://files.openai.com/content?id=file_00000000f0ec8211ad42cbdd88ce279d"
"https://files.openai.com/content?id=file_00000000a35482119e9cbdae03f987ec"
changed /release/interface/logo_url_dark
null
"https://files.openai.com/content?id=file_0000000001648211971e55df67a221fb"
changed /release/interface/long_description
"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."
"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
"GTIN Checksum Audit"
"Check product barcode numbers"
changed /release/keywords
[ "gtin checksum audit", "catalog and product data", "worksheet", "reviewed inputs" ]
[ "check product barcode numbers", "gtin checksum audit", "catalog and product data", "worksheet", "reviewed inputs" ]
changed /release/version
"1.0.1"
"1.0.4"
Full snapshot data
{
"canonical_app_id": "asdk_app_6ad1efe2047081919b5d44fbcc888e6b",
"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,
"is_v2_template": false,
"name": "duopore-public-gtin-checksum-audit",
"release": {
"app_ids": [
"asdk_app_6ad1efe2047081919b5d44fbcc888e6b"
],
"app_manifest": {
"apps": {
"duopore-gtin-checksum-audit": {
"id": "asdk_app_6ad1efe2047081919b5d44fbcc888e6b",
"required": true
}
}
},
"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"
],
"mcp_servers": [
{
"key": "duopore-gtin-checksum-audit",
"metadata": {
"extensions": {
"com.openai": {
"auth": {
"type": "none"
}
}
},
"headers": {},
"type": "streamable-http",
"url": "https://duopore-public-tools.ch-kae88.workers.dev/mcp/gtin-checksum-audit"
}
}
],
"onboarding_skill_name": null,
"requires_local_executor": false,
"skills": [],
"version": "1.0.4"
},
"scope": "GLOBAL",
"share_url": "https://chatgpt.com/plugins/plugin_asdk_app_6ad1efe2047081919b5d44fbcc888e6b?open_in_app",
"status": "ENABLED"
}SHA-256 of public snapshot: 2c313c095e72f2c1d18a02658772ae914539455feab5e6fda31d5caa514d226e