OpenTechnical

OT-2026-000091223

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, three stage ejector, 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-2026-000091223) never changes.

Identity and time

Publication numberOT-2026-000091223 · never reused
Internal UUID01a0ae9c-f16c-7ef8-8471-e703b5d237b9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091223
StatusPUBLIC

Content hashes

Canonical text16c67e7b71c19243173e502f6d4f67e6f15b38b938bd7d961d16d0b2118b265e
Markdown06fd0626429d13e8b57f4880acd4f9b68d773adb1a5ae3a04e1f8ca30b8e31b0
PDF
Publication pagebc582e9520f358d030edf77b31f8da809a4fd4754e2b7df8f6f730567d07443f
Manifestda2fdfdae595a34a9bade713c00df820d8fc55832261552b7f9adb2083c7ef27

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
SignatureJD+0XKg7TK0GFOhqA4OA2+0BYl2zqOtP5uNTRS2spSAiXB7L6i42+TE92W3o/M3zlfKR0QtGQ5r+D+IDC8bUAA==
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

2026-09-17T09:43:23.701366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091223
observed bc582e9520f358d030edf77b31f8da80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.685564ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091223/manifest.json
observed da2fdfdae595a34a9bade713c00df820...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.669746ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091223/publication.md
observed 06fd0626429d13e8b57f4880acd4f9b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:23.655177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091223/publication.txt
observed 16c67e7b71c19243173e502f6d4f67e6...
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.