OpenTechnical

OT-2026-000089719

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, manifold 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-2026-000089719) never changes.

Identity and time

Publication numberOT-2026-000089719 · never reused
Internal UUID01a0ae9c-1a22-7530-ab4e-dee6b5148c1f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089719
StatusPUBLIC

Content hashes

Canonical text9b90197055689b7c0bafd0765d28f63a58f3b1bfc43b354859bc9e361a2742d1
Markdown829b83c925e1da49eb5b858f60ab890d27605badddab5b4f969472f4aa5956dd
PDF
Publication page2ceaabe5001b4dc61f499dfc1b7b4f72dd39753ac3c241579d641cb7f1bfd5b6
Manifest0d0bd44369ec01bf59b98a55f0f2952759293930e24e90cbd5b4eea860b8bd44

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
Signature08mqqBf65lRAio1YOCEPxyZMwTOeIpoCW5K+s2CqO6oimO0Prd9RMR/Ke7D/YKfOq/oD2XqMRd8ipad4aJumCg==
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

2026-09-17T09:46:43.472831ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089719
observed 2ceaabe5001b4dc61f499dfc1b7b4f72...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:43.455034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089719/manifest.json
observed 0d0bd44369ec01bf59b98a55f0f29527...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:43.436867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089719/publication.md
observed 829b83c925e1da49eb5b858f60ab890d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:43.419617ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089719/publication.txt
observed 9b90197055689b7c0bafd0765d28f63a...
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.