OpenTechnical

OT-2026-000069826

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, 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-2026-000069826) never changes.

Identity and time

Publication numberOT-2026-000069826 · never reused
Internal UUID01a0ae91-185f-719c-892b-ac398cfcdff7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069826
StatusPUBLIC

Content hashes

Canonical textd801bb5fe43a66e556a322869a4928e95aeed63b71485060844c3ad6f80910d7
Markdownedfb54f42e88f7f36fabb912904c629dc20000c8ad1bd940a313796130e1a1de
PDF
Publication page978b4c7aff133b94367d9c3f03b6ad0c4646e031e2c158c046e73abf42dbff9d
Manifest26eaa5e5476144f91aac79e1e21c35868b2e9404122633d489584b0610dd8717

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
SignaturehPik2+jCJvPiC5C4+XwW2X54cqNAS+2KNCDkYaLjJPxN8g8FFg2XtvoZvERe+/l7APQQ269l192uGBslLJtVDg==
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

2026-09-17T10:26:39.483628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069826
observed 978b4c7aff133b94367d9c3f03b6ad0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:39.465646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069826/manifest.json
observed 26eaa5e5476144f91aac79e1e21c3586...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:39.447560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069826/publication.md
observed edfb54f42e88f7f36fabb912904c629d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:39.430430ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069826/publication.txt
observed d801bb5fe43a66e556a322869a4928e9...
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.