OpenTechnical

OT-2026-000057561

Publication integrity record

Single cup vacuum gripper, pump fed, supply line pressure sensor, 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-2026-000057561) never changes.

Identity and time

Publication numberOT-2026-000057561 · never reused
Internal UUID01a0ae88-2693-78f1-81d8-1f97d0a7c990 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:42:33.513637Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000057561
StatusPUBLIC

Content hashes

Canonical texte717c92989386f30ac9bdad0f106c139cb905cbf26aa47a6a93984330d9d4383
Markdowna12c737ee151ce5460df42ac313b7d78e4077ea2c11a9e617908484bfa944df6
PDF
Publication page4d907adcd602cf2b1f682ac9b311764134e22571406da8180a820d070244518c
Manifest1b7b96d7c038fb49e5bdd6052eeced94164d05c6ad9272dd7c7461007ffa9b43

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
SignaturecmHwlGAarDlySJe16VLHbJpkecjURVosXaWgP7WSe6SznPXeI1mrX+hg44TWUuUhjv8sebQ9MFW2eANinnn0BA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...

Independent retrieval

2026-09-17T10:48:06.214448ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057561
observed 4d907adcd602cf2b1f682ac9b3117641...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.196115ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057561/manifest.json
observed 1b7b96d7c038fb49e5bdd6052eeced94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.176741ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057561/publication.md
observed a12c737ee151ce5460df42ac313b7d78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:48:06.160053ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000057561/publication.txt
observed e717c92989386f30ac9bdad0f106c139...
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.