OpenTechnical

OT-2026-000006827

Publication integrity record

Vacuum cup gripper, common isolation valve, pump fed, pressure verified, vented before set down

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-2026-000006827) never changes.

Identity and time

Publication numberOT-2026-000006827 · never reused
Internal UUID01a0a968-c3c1-78b1-a79b-fc8bdd1f7917 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:50:10.500493Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006827
StatusPUBLIC

Content hashes

Canonical text714d40c5f4fabb45904e3d24933d22cbff07cab57376baf54b9295e5bf8f2811
Markdown80964b0e15dfa48043cc2a5ee526fe418bea4f5fa30d07544de430614d8b7984
PDF
Publication page59350be21236c6514e695e40a75ae8e646447c59dc8ae4762283448d624c3390
Manifest69c69bd8c546d5f215a1c762451b66b4711b438155ef93cc7a999020a4e0b5b6

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
SignaturedA/Rq2ZZH6jGjTqrMXVryLeVb8ogiquftoQa0SPVzXPA4rBx20le66MA1e1opSITjidFPlzJVDPRS+FXP473CQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:31.721927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006827
observed 59350be21236c6514e695e40a75ae8e6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.708286ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006827/manifest.json
observed 69c69bd8c546d5f215a1c762451b66b4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.696601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006827/publication.md
observed 80964b0e15dfa48043cc2a5ee526fe41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:31.683589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006827/publication.txt
observed 714d40c5f4fabb45904e3d24933d22cb...
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.