OpenTechnical

OT-2026-000007445

Publication integrity record

Porous face vacuum gripper, two zone face, common isolation valve, two stage ejector, open cell

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-2026-000007445) never changes.

Identity and time

Publication numberOT-2026-000007445 · never reused
Internal UUID01a0a97f-0e68-7f39-bd69-49b0dad5263f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T09:14:31.403162Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007445
StatusPUBLIC

Content hashes

Canonical textd901eae74f343af827eb545d6a8ec194cb16239e3201f8089bcce769cb82f952
Markdown95f8912dc490337cad522472d79cd5a8fdde2cf5ba4a13c747df3cf01da4c184
PDF
Publication page5bc9f4433eb1c8a257aa818f1bb41f61317f321d3a8deec9cf21ded8852d4aa3
Manifest1694d4bcb2d67b751cdaf8303942c212fe2a87aaf3f2eef02860b9a1a11e7dd0

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
SignaturedNWFm2K7vmY5v5tuW5cWYy4Kf/PWNaBCctjcIqbz4qdtaxzhV/o6whOnOcnxB2uFr61fo4/UbBmLrbG24uySAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:20:33Z
batch OT-TS-2026-W38-015 · RFC 3161 token · inclusion proof
root 07bfbe2fb3517c1c41f239fb2e682fbe...

Independent retrieval

2026-09-16T09:20:04.991646ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007445
observed 5bc9f4433eb1c8a257aa818f1bb41f61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:04.978802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007445/manifest.json
observed 1694d4bcb2d67b751cdaf8303942c212...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:04.966476ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007445/publication.md
observed 95f8912dc490337cad522472d79cd5a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:20:04.947140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007445/publication.txt
observed d901eae74f343af827eb545d6a8ec194...
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.