JSON blob a5256d416e2e8b92d69a4459058e3eca33a9f075d8325491644411d0bc3bd70b

{
  "schemaVersion": 2,
  "mediaType": "application/vnd.oci.image.index.v1+json",
  "manifests": [
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:dfc237e40bd0d88e28a2b1254e63e1a3133ec4d21715ca383434d252044d40a5",
      "size": 1245,
      "platform": {
        "architecture": "amd64",
        "os": "linux"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:092f4fc34417277d911b1672e794b9b531a34f47041cedcd9b229ff85127d286",
      "size": 1245,
      "platform": {
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        "os": "linux"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:804013071f6996c7546ec971212dad61fda0244493cad69ec0f254981398da1b",
      "size": 1245,
      "platform": {
        "architecture": "arm",
        "os": "linux",
        "variant": "v7"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
      "digest": "sha256:39945dc7e653597a3375be448d7ddfb8711fff8aa323c68342cf92f363cf81cd",
      "size": 566,
      "annotations": {
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        "vnd.docker.reference.type": "attestation-manifest"
      },
      "platform": {
        "architecture": "unknown",
        "os": "unknown"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
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      "size": 566,
      "annotations": {
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        "vnd.docker.reference.type": "attestation-manifest"
      },
      "platform": {
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        "os": "unknown"
      }
    },
    {
      "mediaType": "application/vnd.oci.image.manifest.v1+json",
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      "size": 566,
      "annotations": {
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        "vnd.docker.reference.type": "attestation-manifest"
      },
      "platform": {
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        "os": "unknown"
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    }
  ]
}

Images, referring to this json: