OpenTechnical

OT-2026-000071997

Publication integrity record

Two cup vacuum gripper, two zone face, two outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000071997) never changes.

Identity and time

Publication numberOT-2026-000071997 · never reused
Internal UUID01a0ae92-47c0-74ee-bab3-666e0c8bd726 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:37.365346Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071997
StatusPUBLIC

Content hashes

Canonical text77b47e5a73379ca593be424dd57b6578086753e428a7bb5217299227a6acfd90
Markdownac922bee61c80d3a94403c8cbca2913dbef600e33f63a222828d3e5a3a657b9d
PDF
Publication page0d04c303bcccfe2d7eaffb51ba48d607ca5dfb5b016fdf1ad5f203496305ed76
Manifest0d543aef18f7986ae553bf89246867347bf623853a282259d05fc4cf8f5dc896

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
SignatureWgy3L+gqI+xqP3EXLE8wyFmAw5Od/vJxSm02EAmn8upmldmiZDFI0X/6Ur94mpi3OQ3R2ibsRI9bUbq08sNEAQ==
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

2026-09-17T10:23:03.420361ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071997
observed 0d04c303bcccfe2d7eaffb51ba48d607...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:03.402540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071997/manifest.json
observed 0d543aef18f7986ae553bf8924686734...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:03.385078ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071997/publication.md
observed ac922bee61c80d3a94403c8cbca2913d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:03.367664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071997/publication.txt
observed 77b47e5a73379ca593be424dd57b6578...
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.