OpenTechnical

OT-2026-000074932

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, manifold pressure sensor, vented 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-2026-000074932) never changes.

Identity and time

Publication numberOT-2026-000074932 · never reused
Internal UUID01a0ae93-ac2d-7776-9100-1e9bf1614a9e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074932
StatusPUBLIC

Content hashes

Canonical text9cc4e1d8d858e7f08711672d00347900cc6b9979eaefc0a9a80ef6b45b9b47f1
Markdown5ae6135309a55f5e3d077555334b319915da486fc6db6bcc4c1df61ec1da4fa1
PDF
Publication page72a03cd4a2c2a50d704b6a815be0f826e32e8aa4605f07ae7f092afdb4936ce0
Manifest0e31f53745ff59a1538906793a38afde5e997f3ce136dc4b8b5d69cca4d21359

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
Signature0G3MvbXrfK5lSxS25T3vflyeeG/DRYUNy1i6BIMYbEXTHHyM673ZzPPYK6e7NlEml8BxsoVXhkQr1LT8NVcYCA==
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

2026-09-17T10:18:39.646017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074932
observed 72a03cd4a2c2a50d704b6a815be0f826...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:39.629457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074932/manifest.json
observed 0e31f53745ff59a1538906793a38afde...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:39.613332ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074932/publication.md
observed 5ae6135309a55f5e3d077555334b3199...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:39.596476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074932/publication.txt
observed 9cc4e1d8d858e7f08711672d00347900...
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.