OpenTechnical

OT-2026-000078991

Publication integrity record

Foam pad vacuum gripper, three zone face, six outlet manifold, two stage ejector, pressure sensor per zone, pulsed 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-2026-000078991) never changes.

Identity and time

Publication numberOT-2026-000078991 · never reused
Internal UUID01a0ae95-ccbe-78fe-8450-64165fd92759 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078991
StatusPUBLIC

Content hashes

Canonical text19197907139fc7c8538997a839b89049e70bd4ead9f46bbdbb814cce0edfc549
Markdownaa19f495e9c709e547685485d65182404fe7add63a7a63934166c5f69217de22
PDF
Publication page386b3cafb5e5f7aa0b46d00b4bf84c9d89372e7d312209da033f8d716fc3f700
Manifest2a5f91a49baa0d72bdf5a6445cc25b7ab8c576041f1f6c82e264a5652cd8b0b9

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
SignatureCUwAZg+0FUcMqgDZxTpxbGWIM/3pSrz+Frq9deD6tO3/KsjkyJ+mU0wCirVs4gD0tVYeYwzAYx4zvrZ3vWZLAg==
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

2026-09-17T10:05:49.205811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078991
observed 386b3cafb5e5f7aa0b46d00b4bf84c9d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:49.185687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078991/manifest.json
observed 2a5f91a49baa0d72bdf5a6445cc25b7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:49.165472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078991/publication.md
observed aa19f495e9c709e547685485d6518240...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:49.145506ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078991/publication.txt
observed 19197907139fc7c8538997a839b89049...
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.