OpenTechnical

OT-2026-000019291

Publication integrity record

Foam pad vacuum gripper, two zone face, three stage ejector, pulsed blow-off before set-down, on a tool changer

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-2026-000019291) never changes.

Identity and time

Publication numberOT-2026-000019291 · never reused
Internal UUID01a0ae6e-f392-7dc7-a2ee-daba595de1f9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:15:02.050431Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000019291
StatusPUBLIC

Content hashes

Canonical texted9571418a1bdc176b4792c409e609781285ad46d9382ffe96c42731e2e48660
Markdown2f4a239d003c29cc2f1e78e7e907ec877ebad84fe6b5ddb15912dd3e54070405
PDF
Publication pagee57027475a3258f68dbc1fc0173ed5af1fb86942d9495182bc820f7e2c484e87
Manifest6745b7fd3c85feaaee70cc50ad36361700bde080aa8d1ac03901da00c35856f1

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
SignatureqMJihiHkLKnEAU+vv/b0KiCattZW16lFxUr9QoTpNsWkRsvK7tvBTMCb67P+UwiEGcY+YSITqcoqr98KxPy9AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:58:38.713580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019291
observed e57027475a3258f68dbc1fc0173ed5af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:38.696277ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019291/manifest.json
observed 6745b7fd3c85feaaee70cc50ad363617...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:38.678347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019291/publication.md
observed 2f4a239d003c29cc2f1e78e7e907ec87...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:58:38.663391ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000019291/publication.txt
observed ed9571418a1bdc176b4792c409e60978...
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.