OpenTechnical

OT-2026-000091880

Publication integrity record

Two cup vacuum gripper, two zone face, six outlet manifold, plant vacuum fed, pressure sensor per zone, 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-2026-000091880) never changes.

Identity and time

Publication numberOT-2026-000091880 · never reused
Internal UUID01a0ae9d-43ba-77ae-9e02-f3e9a3cac210 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091880
StatusPUBLIC

Content hashes

Canonical textab4a4185c819965aa9d6fabb5b16e05ae7f63cfa221a247b9bbe5de3d6441a35
Markdownbdb703da17bff5432570cd3876cbe482da9f509df5d89c6f348028be0292f9d8
PDF
Publication page08d73485fdf0579e578a3d9058c3f17587718259aee287249685f6d2f9b7994a
Manifeste55a2eacb0266ee193d94d3fa61546c55b049479819785e03a653f67e0d49476

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
SignatureC9dNXj+UOq8bcmAI4mde1I7/GCWC5+22Q1nqGs0htj0bVvA2LoIFI/v2OutlMPLnKZo6yntX/vQju2eGnDnUDQ==
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

2026-09-17T09:42:48.506913ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091880
observed 08d73485fdf0579e578a3d9058c3f175...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.487789ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091880/manifest.json
observed e55a2eacb0266ee193d94d3fa61546c5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.471017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091880/publication.md
observed bdb703da17bff5432570cd3876cbe482...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.453176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091880/publication.txt
observed ab4a4185c819965aa9d6fabb5b16e05a...
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.