server@1577f95c0950
docker buildx stores the attestations it generates as an extra entry of the index, with the placeholder platform unknown/unknown, describing the variant 35b195981dfe. It appears whenever a build records provenance — on by default since Docker 24 / buildx 0.11 — or an SBOM (--sbom=true); images built with plain docker build or with --provenance=false have no such entry. docker pull never fetches it by itself; docker buildx imagetools inspect and docker sbom read it.
This entry contains: SLSA provenance v1 (26.8 KiB) — no SBOM: the build did not pass --sbom=true.
It belongs to server:main-53d5a1b, so it cannot be deleted on its own: removing it would break that index. Delete the tag or the index and the next prune untagged run (or a retention policy) removes this entry; garbage collection reclaims its bytes.
To build without attestation entries: docker buildx build --provenance=false --sbom=false …
docker pull chicor.ee/tund/server@sha256:1577f95c09505fd19cfb5f9fdb0504f572ec1d22fe6ff37eddeb2fb9dad57adf- Digest
- 1577f95c09505fd19cfb
- Media type
- application/vnd.oci.image.manifest.v1+json
- Platform
- none — attestation entry (unknown/unknown)
- Total size
- 26.8 KiB
- Pushed
- Oct 6, 2026by
ruohki
| # | Instruction | Digest | Shared | Size |
|---|---|---|---|---|
| 1 | — | c83fab56f225 | unique | 26.8 KiB |
Nothing is attached to this image.
Signatures, SBOMs and provenance show up here once someone who can push attaches them.
{
"schemaVersion": 2,
"mediaType": "application/vnd.oci.image.manifest.v1+json",
"artifactType": "application/vnd.docker.attestation.manifest.v1+json",
"config": {
"mediaType": "application/vnd.oci.empty.v1+json",
"digest": "sha256:44136fa355b3678a1146ad16f7e8649e94fb4fc21fe77e8310c060f61caaff8a",
"size": 2,
"data": "e30="
},
"layers": [
{
"mediaType": "application/vnd.in-toto+json",
"digest": "sha256:c83fab56f2257c140444d42d3ac0df4cc0afaf7d7a2628387c8880b3d18ee458",
"size": 27424,
"annotations": {
"in-toto.io/predicate-type": "https://slsa.dev/provenance/v1"
}
}
],
"subject": {
"mediaType": "application/vnd.oci.image.manifest.v1+json",
"digest": "sha256:35b195981dfebc9eaf650e0c858e66db463d825134b3fd7251d9c5464928e439",
"size": 1056
}
}