OpenTechnical

OT-2026-000063989

Publication integrity record

Single cup vacuum gripper, three stage ejector, supply line pressure sensor, vented after 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-2026-000063989) never changes.

Identity and time

Publication numberOT-2026-000063989 · never reused
Internal UUID01a0ae8d-53bc-728f-b8af-e98ba55727cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:48:12.763906Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063989
StatusPUBLIC

Content hashes

Canonical text8549a37f6d4f120277fc060dcc69ae70b929f3c88af8575b6426c15ef00f542d
Markdown062b795f9578349db1998c68202dd27f3c0bbf3d9e64b99189349f10385bc072
PDF
Publication page7e221acfd837687db4fe9e938175c1d0b3b914dd364d192a3044990911b0637a
Manifest7420074ba8831306f3ed12851157c268170e58a0f436fcaf18fa41343752b14a

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
SignatureBwQ6V1G3deKpYWvhFAXSrD6FHWvd++/DPQluvJmVdydW+mnECr85CwJu5dSpMbZXXeFTMxHElGSctpBmfsSdDA==
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

2026-09-17T10:37:03.674956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063989
observed 7e221acfd837687db4fe9e938175c1d0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:03.657571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063989/manifest.json
observed 7420074ba8831306f3ed12851157c268...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:03.640019ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063989/publication.md
observed 062b795f9578349db1998c68202dd27f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:03.621300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063989/publication.txt
observed 8549a37f6d4f120277fc060dcc69ae70...
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.