OpenTechnical

OT-2026-000022961

Publication integrity record

Four cup vacuum gripper, four outlet manifold, two stage ejector, 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-2026-000022961) never changes.

Identity and time

Publication numberOT-2026-000022961 · never reused
Internal UUID01a0ae70-46ec-7221-91ba-8e5a27f4e7fe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022961
StatusPUBLIC

Content hashes

Canonical text7287609186f422215c917388d789546ee0a62c7396fea1278c268fa0bdc529bc
Markdownf301cf93d112656b06ec2e28df9681fe9611fd92e1fd5804bfa3224eb45a8c5e
PDF
Publication page5e94deb2806ef1f20808f3a2d86bfc0de8f49dfbf4c47a99ef6292c1a0571215
Manifestd952f3265ad44765e370fb10782596ae59360074f6429e9eb5cb47c1684aa9e0

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
Signature2WXnQ9KHVBQJOj9g6qdDtZtIxeXDt/VFdRNM15GPNK9o4BzWfyJDutr640WmeXukcNFufstNpRTXOf86JNnmCg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:32.803391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022961
observed 5e94deb2806ef1f20808f3a2d86bfc0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.782693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022961/manifest.json
observed d952f3265ad44765e370fb10782596ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.761909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022961/publication.md
observed f301cf93d112656b06ec2e28df9681fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:32.742925ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022961/publication.txt
observed 7287609186f422215c917388d789546e...
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.