OpenTechnical

OT-2026-000081520

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, two stage ejector, supply line pressure sensor, vented after set-down

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-2026-000081520) never changes.

Identity and time

Publication numberOT-2026-000081520 · never reused
Internal UUID01a0ae97-0f71-75ad-b83f-b3a8274686e9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081520
StatusPUBLIC

Content hashes

Canonical text640b94a89091daee3f3c2119f81401260848eeaa191d3aa93df2df3517116292
Markdown075f9a35f0eb5139b6861adeb2dfb61b0f3d5749016b601e6b1d6ef4c22dfb70
PDF
Publication page2aa82b3ee9c73a2f3efba2d785e3e4990a334ab0c24fcc8624809bbb4320446b
Manifesta5f3543422d338a5a642efb6859d54592f7ba71ba69e341610752db69b908665

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
SignaturelRF7ri4tDC+gOEFmRhUPWe0S7irII4jbZLB2SJzgemMXFh8NELOIbw7Cl96cQrC6NBWMvTSjysnODo0DW+JsAg==
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

2026-09-17T09:59:32.249540ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081520
observed 2aa82b3ee9c73a2f3efba2d785e3e499...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.231013ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081520/manifest.json
observed a5f3543422d338a5a642efb6859d5459...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.213763ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081520/publication.md
observed 075f9a35f0eb5139b6861adeb2dfb61b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:32.197020ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081520/publication.txt
observed 640b94a89091daee3f3c2119f8140126...
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.