OpenTechnical

OT-2026-000071515

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, supply line pressure sensor, pulsed 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-2026-000071515) never changes.

Identity and time

Publication numberOT-2026-000071515 · never reused
Internal UUID01a0ae91-e0ee-76a9-ad21-1b3f275aee4c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071515
StatusPUBLIC

Content hashes

Canonical textba1f0ea91a46f96efc38bd8602bea3ab94d61213d720047a1296ab59ff31298c
Markdownd1e23523f7eb38b3ebf619365320d1810e478c2bc5bcf439fcce73f6d0f3f545
PDF
Publication page0da4549a17ee397849a49d854d7061f30d66d6aee48642c46a5245ee5b194b6d
Manifest693bb05e3678972c13ef08c574f3329efdc8e543d279ae1b4b1f48c4ba864c9e

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
Signature9q9I+bNq9FFMd3NNOtQiMj2zI7XGYB3/NroX6gn8qbUCeTw4PvYVSkIrSw4Fel++uFWoI3/jm/nOXt/ztl1UCw==
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

2026-09-17T10:25:09.731865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071515
observed 0da4549a17ee397849a49d854d7061f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:09.713822ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071515/manifest.json
observed 693bb05e3678972c13ef08c574f3329e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:09.694174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071515/publication.md
observed d1e23523f7eb38b3ebf619365320d181...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:09.677333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071515/publication.txt
observed ba1f0ea91a46f96efc38bd8602bea3ab...
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.