OpenTechnical

OT-2026-000005322

Publication integrity record

Porous face vacuum gripper, four outlet manifold, pump fed, 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-2026-000005322) never changes.

Identity and time

Publication numberOT-2026-000005322 · never reused
Internal UUID01a0a935-655a-78a5-8a20-12ad42d8206c · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:54:03.997339Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005322
StatusPUBLIC

Content hashes

Canonical text467d766784662f5d9874e0ef84ee232f79e7e28ba544d6a2847825606232a266
Markdownd847408e712474eb213180ca77b16c1f8a5a4c64cacd2be8ffc8288bb1a914e6
PDF
Publication page28d73081656840e3a9c5e3f9129534995164e6c0bf92fea470f0fdbd26fa574e
Manifestdbdd5ffd2d458afd1b0fe89bbf478e54c6911c0dac435bcf68c01e27b1016c36

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
Signatureuw7sQ+2rCcGL7/k6IdrxCCYxSQ70qlv/85wcmFpypQts+NcbJZBz3C7vzxFnm+io2xBa0nq2ArRGV3KTwOlnDg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:22.729015ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005322
observed 28d73081656840e3a9c5e3f912953499...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:22.715799ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005322/manifest.json
observed dbdd5ffd2d458afd1b0fe89bbf478e54...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:22.703639ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005322/publication.md
observed d847408e712474eb213180ca77b16c1f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:22.690262ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005322/publication.txt
observed 467d766784662f5d9874e0ef84ee232f...
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.