Technical proof

Raw proof JSONThe full verification package

verification-package.json

{
  "schemaVersion": "2.0",
  "generatedAt": "2026-07-15T18:44:16.585Z",
  "publishedAt": "2026-07-15T18:44:34.479Z",
  "snapshot": {
    "nfc": {
      "nfcLocked": false,
      "nfcEnabled": false,
      "nfcWriteStatus": "not_programmed"
    },
    "name": "Testing Product V2",
    "batch": {
      "batchId": "cmqzf87g8000c1cqb50wbbxbj",
      "batchCode": "Test Batch Code",
      "batchName": "Test Batch Name",
      "batchStatus": "active",
      "batchExpiryDate": "2026-07-30",
      "batchManufacturingDate": "2026-06-30"
    },
    "brand": "Testing Company V2",
    "story": "lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum",
    "images": [
      {
        "url": "https://pub-e8a776b42dfb4f58a75ea949262e644e.r2.dev/f9f6131f-c929-4ebe-b82a-de0ed8015dc9.png",
        "altText": "HengFohTong_FB1.png",
        "isPrimary": true,
        "displayOrder": 0
      },
      {
        "url": "https://pub-e8a776b42dfb4f58a75ea949262e644e.r2.dev/cdcb3ad2-b987-483a-93e9-112232418df6.png",
        "altText": "What Is Traditional Chinese Confinement Blog Image.png",
        "isPrimary": false,
        "displayOrder": 1
      }
    ],
    "category": "Natural Food",
    "productId": "cmrmfijeu00061cov4rlo3wak",
    "expiryDate": "2026-10-31",
    "ingredients": [],
    "schemaVersion": "1.1",
    "publicVerifyUrl": "https://nfc-verify-production.up.railway.app/verify/c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf",
    "verificationCode": "c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf",
    "manufacturingDate": "2026-07-16",
    "verificationStatus": "verified"
  },
  "proof": {
    "sections": [
      {
        "hash": "58a7093e28fa5f0d75c126878bd41a6e561098257ee3d7a54a8b4e88bb645721",
        "name": "identity",
        "canonicalJson": "{\"name\":\"Testing Product V2\",\"productId\":\"cmrmfijeu00061cov4rlo3wak\",\"verificationCode\":\"c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf\"}"
      },
      {
        "hash": "6dda9ff732816d0eb6823042b6b2df6e1a0c3785f459a078a24000315e3eebc7",
        "name": "productDetails",
        "canonicalJson": "{\"brand\":\"Testing Company V2\",\"category\":\"Natural Food\",\"story\":\"lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum lorem ipsum\",\"verificationStatus\":\"verified\"}"
      },
      {
        "hash": "98137dd3d2bb45bf0251d95a6a1794745e6586752e5b50dc701f41b136fa5fd0",
        "name": "batchDetails",
        "canonicalJson": "{\"batchCode\":\"Test Batch Code\",\"batchExpiryDate\":\"2026-07-30\",\"batchId\":\"cmqzf87g8000c1cqb50wbbxbj\",\"batchManufacturingDate\":\"2026-06-30\",\"batchName\":\"Test Batch Name\",\"batchStatus\":\"active\"}"
      },
      {
        "hash": "53c5c3d0bec12e1e2dbe1c1913e3254992d982545255b06f366060a2c078b9e6",
        "name": "media",
        "canonicalJson": "{\"images\":[{\"altText\":\"HengFohTong_FB1.png\",\"displayOrder\":0,\"isPrimary\":true,\"url\":\"https://pub-e8a776b42dfb4f58a75ea949262e644e.r2.dev/f9f6131f-c929-4ebe-b82a-de0ed8015dc9.png\"},{\"altText\":\"What Is Traditional Chinese Confinement Blog Image.png\",\"displayOrder\":1,\"isPrimary\":false,\"url\":\"https://pub-e8a776b42dfb4f58a75ea949262e644e.r2.dev/cdcb3ad2-b987-483a-93e9-112232418df6.png\"}]}"
      },
      {
        "hash": "dbef5cfc60cc332c017762749d537fbb3a3de0ed046b1475f80040db12a70f02",
        "name": "certifications",
        "canonicalJson": "{\"certifications\":[]}"
      },
      {
        "hash": "10717539406ad6f7efc5af65389e5801664a1370b75222ec62f4d62872bb7014",
        "name": "dates",
        "canonicalJson": "{\"expiryDate\":\"2026-10-31\",\"manufacturingDate\":\"2026-07-16\"}"
      },
      {
        "hash": "49e92d46d9ad4036e819ac08e3d90ade365ecf7defa73ca7baca875d70775bcb",
        "name": "nfc",
        "canonicalJson": "{\"nfcEnabled\":false,\"nfcLocked\":false,\"nfcWriteStatus\":\"not_programmed\"}"
      },
      {
        "hash": "3067e2d792ad1e5aa5635539664b588b5181efcfdf4ef05b35459af98cbde9c3",
        "name": "verificationUrl",
        "canonicalJson": "{\"publicVerifyUrl\":\"https://nfc-verify-production.up.railway.app/verify/c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf\"}"
      },
      {
        "hash": "c7e725d0eee05eb47d57093a99fd2ceced82f35f78e6c405137006135b260dd7",
        "name": "ingredients",
        "canonicalJson": "{\"ingredients\":[]}"
      },
      {
        "hash": "bd70bf0ce3161c6d92a6b2745e417b84973f74e667cd0d819b1468fc32ca66ec",
        "name": "passport",
        "canonicalJson": "{\"blockchainProof\":{\"publicVerifyUrl\":\"https://nfc-verify-production.up.railway.app/verify/c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf\",\"verificationCode\":\"c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf\"},\"certifications\":[],\"ingredientSources\":[],\"productId\":\"cmrmfijeu00061cov4rlo3wak\",\"productionBatch\":{\"batchCode\":\"Test Batch Code\",\"batchName\":\"Test Batch Name\",\"batchStatus\":\"active\",\"manufacturingDate\":\"2026-07-16\"},\"qualityAssurance\":{\"expiryDate\":\"2026-10-31\",\"verificationStatus\":\"verified\"},\"schemaVersion\":\"1.0\",\"verificationCode\":\"c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf\",\"verifiedProduct\":{\"brand\":\"Testing Company V2\",\"category\":\"Natural Food\",\"name\":\"Testing Product V2\",\"primaryImageUrl\":\"https://pub-e8a776b42dfb4f58a75ea949262e644e.r2.dev/f9f6131f-c929-4ebe-b82a-de0ed8015dc9.png\"}}"
      }
    ],
    "productId": "cmrmfijeu00061cov4rlo3wak",
    "merkleRoot": "e27d2953dcba388dadd6302aeae9081ddd221228558a9cde5f9f659f6f05c6de",
    "generatedAt": "2026-07-15T18:44:16.579Z",
    "snapshotHash": "c70bccde2d720a5925e759a3630737bde7c35a4d555b716a30ea2c28f7883150",
    "schemaVersion": "1.1",
    "verificationCode": "c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf"
  },
  "metadata": {
    "productId": "cmrmfijeu00061cov4rlo3wak",
    "verificationCode": "c44d70fd-9ddd-4b1d-8a94-b66b96bd7acf",
    "snapshotHash": "c70bccde2d720a5925e759a3630737bde7c35a4d555b716a30ea2c28f7883150",
    "merkleRoot": "e27d2953dcba388dadd6302aeae9081ddd221228558a9cde5f9f659f6f05c6de",
    "network": "Base Mainnet",
    "chainId": "8453",
    "contractAddress": "0xbB81b8Fa1E08592894BFfbA9779CEe3e92bcA9E8",
    "contractVersion": "1.0",
    "txHash": "0xe725a8962414086330990e226610fa573d96a367241b37052a21340917a32af0",
    "blockNumber": "48675862",
    "ipfsCid": "bafkreigvcnldlyg5pbmhuxi45z3fdptrlzltrjfmd246kv2nyu4fpyujpq",
    "onChainCid": null
  }
}

Open as a standalone page

Open package on IPFSIPFS gateway · external site

Technical Integrity

The cryptographic evidence, for technically inclined readers. This page recomputes the values from the stored package and reports the result.

Snapshot hash
This page re-hashes the canonical product snapshot from the stored package and compares it to the hash recorded in the proof.
Match confirmed
View comparison
Computed by this pagec70bccde2d720a5925e759a3630737bde7c35a4d555b716a30ea2c28f7883150
Recorded in proofc70bccde2d720a5925e759a3630737bde7c35a4d555b716a30ea2c28f7883150
Merkle root
The section hashes are re-assembled into a Merkle tree and its root compared to the recorded value.
Match confirmed
View Merkle comparison
Computed by this pagee27d2953dcba388dadd6302aeae9081ddd221228558a9cde5f9f659f6f05c6de
Recorded on-chaine27d2953dcba388dadd6302aeae9081ddd221228558a9cde5f9f659f6f05c6de
Product passport
Confirms the customer-facing product passport is the exact one included as a leaf in this proof.
Anchored in this proof
View passport section hash
Passport section hashbd70bf0ce3161c6d92a6b2745e417b84973f74e667cd0d819b1468fc32ca66ec

Integrity identifiers

The cryptographic values that define this proof

Snapshot hash (SHA-256)c70bccde2d…f7883150

Merkle roote27d2953dc…6f05c6de

Schema version2.0

Sections anchored10

Section hashes

Each section hashed independently — the leaves of the Merkle tree above

identity58a7093e28…bb645721
productDetails6dda9ff732…5e3eebc7
batchDetails98137dd3d2…36fa5fd0
media

This proof confirms that the recorded data has not changed since publication. It does not independently validate the original real-world claims.

Verification Summary

Proof Assets

Verification package

Provenance image

Blockchain Record

On-chain publication

Technical Integrity

Integrity identifiers

Section hashes