OpenTechnical

OT-2026-000087554

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three stage ejector, supply line pressure sensor, 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-2026-000087554) never changes.

Identity and time

Publication numberOT-2026-000087554 · never reused
Internal UUID01a0ae9a-cd52-7ae6-8340-faf7aaef5df1 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087554
StatusPUBLIC

Content hashes

Canonical text9d0f75abbfd63d2a13d715c14e5ca3e5dfd342d7d2fe00d661246d292e0a7f0b
Markdown8e1ae16f86a078a360bd793013b3120ae2f277d2b8c348b6311c46f8f6480658
PDF
Publication pagec37c7019783a4d5ce0cde56934712c7ae8d343cc3b10a5d1018755fb230762f2
Manifestcf55f561f28ccb56bd6b20bf57016dd2dc67f18bc9e5934d55c62c97fb8dd036

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
SignaturevV1CHjb1NRP3HT1KuTfamYQo5yU5DZtifstKcPm+PscjhuikbvBbOR1B0F3EWpsERbl46I9p6GS9AsraG5TeCg==
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

2026-09-17T09:50:53.827175ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087554
observed c37c7019783a4d5ce0cde56934712c7a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.809290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087554/manifest.json
observed cf55f561f28ccb56bd6b20bf57016dd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.791056ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087554/publication.md
observed 8e1ae16f86a078a360bd793013b3120a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:50:53.773957ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087554/publication.txt
observed 9d0f75abbfd63d2a13d715c14e5ca3e5...
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.