OpenTechnical

OT-2026-000090074

Publication integrity record

Three bellows cup vacuum gripper, three zone face, six outlet manifold, three stage ejector, manifold pressure sensor, sustained blow-off before set-down, on a tool changer

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000090074) never changes.

Identity and time

Publication numberOT-2026-000090074 · never reused
Internal UUID01a0ae9c-428e-7bd2-ba4a-3c9ed24e2b19 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090074
StatusPUBLIC

Content hashes

Canonical text01e27306ac38a2ceb2d913d4733d1daa470417867c9438ae7c751d9fb891ed6d
Markdown2fa3b8f0bf739f6b28ff81c990d34d93de9b0337dffcb5dbb54f563e44b37ab1
PDF
Publication page610ea7c415b3d07055daa6e451aa28f4fd1e77e68a09104ebda9ccb360649ff9
Manifestb9c509867450044d2fb3d5621bbee575421849f95b222d0a4bc1c4f374b39600

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignaturenXyyVdzH+K9W1hbvyHqpGF4l908NVfOCbtA7f3feXJe374Sziw1Zl6HBK5R0XFCVF8R+ssdeRphG5zzaGxowCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:45:29.470303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090074
observed 610ea7c415b3d07055daa6e451aa28f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:29.452717ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090074/manifest.json
observed b9c509867450044d2fb3d5621bbee575...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:29.433926ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090074/publication.md
observed 2fa3b8f0bf739f6b28ff81c990d34d93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:45:29.415013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090074/publication.txt
observed 01e27306ac38a2ceb2d913d4733d1daa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.