OpenTechnical

OT-2026-000006056

Publication integrity record

Vacuum cup gripper, four zone face, per zone isolation, plant vacuum fed, polyurethane cups

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-2026-000006056) never changes.

Identity and time

Publication numberOT-2026-000006056 · never reused
Internal UUID01a0a94d-df82-7f5e-ae45-cf4127fb3428 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:20:48.132628Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006056
StatusPUBLIC

Content hashes

Canonical texte11d1f459d3d081cf6e7926086c576d1206dd47b92ac1c3e19743fd710fa8a8a
Markdownd7df06974197f8c5f65d76a602f2ffea0773bf42fd582a55ba54462f19021175
PDF
Publication page2914a32b30e21b966dddc77473555bf14cd32d80eb24f6727e5f53c83ad7ce8f
Manifeste6395846a3bf4fd52ddcf35c1f570687d7877886b074462b157916fb8942269f

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
SignaturejtzSQ/LaYClFc3/dIzKOgpFjl+hFFmDco54215nwydlPiTbCMMdLU0vc73g3szI3ur7olfOti/Wy95yYrGIuCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:30:32.648237ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006056
observed 2914a32b30e21b966dddc77473555bf1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:32.634546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006056/manifest.json
observed e6395846a3bf4fd52ddcf35c1f570687...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:32.493185ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006056/publication.md
observed d7df06974197f8c5f65d76a602f2ffea...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:30:32.480402ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006056/publication.txt
observed e11d1f459d3d081cf6e7926086c576d1...
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.