OpenTechnical

OT-2026-000075739

Publication integrity record

Two cup vacuum gripper, two zone face, two 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-2026-000075739) never changes.

Identity and time

Publication numberOT-2026-000075739 · never reused
Internal UUID01a0ae94-29fe-7d14-bc9e-63aa74efc10a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:40.814795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000075739
StatusPUBLIC

Content hashes

Canonical textf7f6be53b4e5307bada4e3eb47e5017cb1f63e4d4aad09e7f9ed2d275658c41d
Markdown0383e03a5ce3d6ef47082c28163c3bf2a499b865b69f39bcaa1b4616afdb4482
PDF
Publication pageb534a07e981f1c6c368cde5421186bb147959def79756ffdc5e7145c0fa02e6b
Manifest813084b61aa943e230cf0b94b891835014119946608b5a50feafc1c0d79d604d

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
SignatureWwI9mmUruJaluzRO82gPb7aEcgRlrFYLfzqLzlMlTkgMbqFmpf8BlRTfof1qX1yy5hEatPkBvdYyVc5ez/tLCA==
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

2026-09-17T10:14:03.785800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075739
observed b534a07e981f1c6c368cde5421186bb1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:03.766172ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075739/manifest.json
observed 813084b61aa943e230cf0b94b8918350...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:03.744907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075739/publication.md
observed 0383e03a5ce3d6ef47082c28163c3bf2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:14:03.726043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000075739/publication.txt
observed f7f6be53b4e5307bada4e3eb47e5017c...
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.