OpenTechnical

OT-2026-000028664

Publication integrity record

Two bellows cup vacuum gripper, two 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-2026-000028664) never changes.

Identity and time

Publication numberOT-2026-000028664 · never reused
Internal UUID01a0ae72-e2f9-764f-a186-dcdb0ec7b704 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:19.949572Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028664
StatusPUBLIC

Content hashes

Canonical text55159e64d4442ad263121758cda966e9d2a13eeae5a5a5ffdb340d7c9606cfe9
Markdownc71556bbfd019f32fa78c4a7e7042c0d0f6be948dfd6bc7d1d4e69fc9a6f82a4
PDF
Publication page80bf051df7e20c032fa272a553c2fbdc251d8b271ff2b2c9ceb49604e40b5477
Manifestebed469613dce87a1fe2832131ea5bed6e33486a0525bbb107a0787c51381cd6

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
SignatureIIoZxrnF029kYD9jkySUG8fPbHnh0s+y4yVrAMYweQ23QU6kqAv9pXWyzM9Z8YVk9lX8sCVV5c8ghPE9dyM+Dw==
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

2026-09-17T11:41:32.731649ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028664
observed 80bf051df7e20c032fa272a553c2fbdc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.713541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028664/manifest.json
observed ebed469613dce87a1fe2832131ea5bed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.694052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028664/publication.md
observed c71556bbfd019f32fa78c4a7e7042c0d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:41:32.674983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028664/publication.txt
observed 55159e64d4442ad263121758cda966e9...
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.