Grain

Made by @grain-survival-test

✦ AI-generated with gpt-image· declared and signed by the creator

◆ Original Content Credentials: signed by OpenAI (gpt-image)· C2PA trusted at registration, signed Jul 20, 2026

registered 10 hours ago · block 70,276,882 ↗

Post on X
  • The manifest is the one the contract recorded
  • It was signed by the creator’s key
  • Carries an invisible TrustMark watermark, and a content fingerprint
Record
555
Creator
0xd445612671fcb154d3E057Fdf30f4187B3AEdbe3
Found via
Envio indexer, checked against the contract
Fingerprint
0x8efe7921b03641f0
Made with
Grain Web 0.1.0
Original credential
C2PA, signed by OpenAI OpCo, LLC (OpenAI Media Service), 2026-07-20 · trusted at registration
Original manifest
urn:c2pa:31c9a9a3-e5b7-4a15-bda7-153b57d4e7f6
Original file
sha256 3369b6298f829abfb606d84bbece98d187b2fb115346d3150c3a0896fe83d386
show the raw manifest
{
  "creator": "0xd445612671fcb154d3E057Fdf30f4187B3AEdbe3",
  "version": 1,
  "recordId": 555,
  "createdAt": 1791771676,
  "signature": "0x162762c754e2a04dcdf0cde51c35de853025c923d252d56376a35f619cfe7db237a7750f66b1817ebce89a2890a41bff981841bdc1dcc8bc595bd6347007ec811b",
  "assertions": {
    "source": {
      "tool": "gpt-image",
      "issuer": "OpenAI OpCo, LLC",
      "signer": "OpenAI Media Service",
      "manifest": "urn:c2pa:31c9a9a3-e5b7-4a15-bda7-153b57d4e7f6",
      "signedAt": "2026-07-20T10:56:51.833599+00:00",
      "standard": "c2pa",
      "validation": "Trusted",
      "assetSha256": "0x3369b6298f829abfb606d84bbece98d187b2fb115346d3150c3a0896fe83d386",
      "digitalSourceType": "http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia"
    },
    "created": {
      "softwareAgent": "gpt-image",
      "digitalSourceType": "http://cv.iptc.org/newscodes/digitalsourcetype/trainedAlgorithmicMedia"
    },
    "generator": "Grain Web 0.1.0",
    "softBindings": [
      {
        "alg": "grain.phash.v1",
        "algId": 0,
        "value": "0x8efe7921b03641f0"
      },
      {
        "alg": "com.adobe.trustmark.Q",
        "algId": 4,
        "value": "0x000000000000022b"
      }
    ]
  }
}

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