OpenTechnical

OT-2026-000006726

Publication integrity record

Vacuum cup gripper, common isolation valve, plant vacuum fed, pressure verified, contact triggered

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-2026-000006726) never changes.

Identity and time

Publication numberOT-2026-000006726 · never reused
Internal UUID01a0a965-49d4-7b5d-a32a-8c83b2d1631c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:46:22.679225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006726
StatusPUBLIC

Content hashes

Canonical text36c9c22393136e86e0676595a50453d2f093acb9182e295f8fc44c4c2b09c4ad
Markdownb528e5b82cc3fffaeac9fd86e0289eef171006fd6a93df89c9e8fd898ad66685
PDF
Publication page7c8958d52af6c502cafd400a06f76ba747f73c5bf1ab77cf866e15827677c19d
Manifestb97be5fbb5ebf94f3849ad4d275634e30c1d6da50e88a963088920ee09fef749

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
SignaturefK/hnAwmpkpsuo0jeluz1zOAIq1aCBct5j8RrWyGkXnKv+7ngz/Jw1MpTUp+CUuEF6/p97NQQaoJMXVcUpDdAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:12.979487ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006726
observed 7c8958d52af6c502cafd400a06f76ba7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.966698ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006726/manifest.json
observed b97be5fbb5ebf94f3849ad4d275634e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.953185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006726/publication.md
observed b528e5b82cc3fffaeac9fd86e0289eef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:12.938883ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006726/publication.txt
observed 36c9c22393136e86e0676595a50453d2...
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.