OpenTechnical

OT-2026-000077694

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, vented after 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-2026-000077694) never changes.

Identity and time

Publication numberOT-2026-000077694 · never reused
Internal UUID01a0ae95-2ecf-7377-bdae-dd208b4f1538 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:47.703064Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077694
StatusPUBLIC

Content hashes

Canonical text503861be166567000be0f643b4a07f8b35fef730579f07be00cf49f086f0ebd3
Markdown914e50ff239855d5897358dbf26773946dd62466f667b5d806e3370df8d442a8
PDF
Publication page18f708a5ccef2201a5df812b7172ae25767ca606f4296673693b29e7dac57926
Manifestec0568d3867bf816b27757e952afa4b3886e3c8c864e397b719e6fdb6a71729c

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
SignatureGlgfTGjYKN1Rd6rlAIjSIr7Y/SGBYqIqGC90rR+lE4OlmVGJCdFmY7LeTfwPVvdw7SuMD/ODOWTZ3jfWsI4rAw==
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

2026-09-17T10:07:15.990383ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077694
observed 18f708a5ccef2201a5df812b7172ae25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:15.972143ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077694/manifest.json
observed ec0568d3867bf816b27757e952afa4b3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:15.954560ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077694/publication.md
observed 914e50ff239855d5897358dbf2677394...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:07:15.934794ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077694/publication.txt
observed 503861be166567000be0f643b4a07f8b...
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.