OpenTechnical

OT-2026-000078721

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, single stage ejector, pressure sensor per zone, 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-2026-000078721) never changes.

Identity and time

Publication numberOT-2026-000078721 · never reused
Internal UUID01a0ae95-ccbc-7f28-becd-5f0a41f4e539 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078721
StatusPUBLIC

Content hashes

Canonical textec414ca602429a0800326549474c1dd9f6ced979542dd8c2e8324eb6c9d839b4
Markdown92eb6bc18ae5ac2a65a1f834b760344615cc825b6ddbbece365e1f098531fedf
PDF
Publication page5be0501759ba82b2e439f536f572db0bc465932761ecb26ed49b2bfac63ba35c
Manifest0982c489648e1e11bd69ebef76dc2e1b9be9dbcd82d328bd03961aa8073a37df

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
SignatureHhLYzzI2MKsUIV/reA9szpMyha9k/jqWeYllgDO78YZSjRbFqAXyQfGUGhCh0CehKLwfYRH9T0Ru8CcjYQMVDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:05:30.269422ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078721
observed 5be0501759ba82b2e439f536f572db0b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.251457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078721/manifest.json
observed 0982c489648e1e11bd69ebef76dc2e1b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.231779ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078721/publication.md
observed 92eb6bc18ae5ac2a65a1f834b7603446...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.213795ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078721/publication.txt
observed ec414ca602429a0800326549474c1dd9...
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.