OpenTechnical

OT-2026-000007804

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, two 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-2026-000007804) never changes.

Identity and time

Publication numberOT-2026-000007804 · never reused
Internal UUID01a0ae62-8d39-7bbd-831b-e228777d21d6 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:01:29.414051Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000007804
StatusPUBLIC

Content hashes

Canonical text6fe4364b6265c0c8a55edadd2bd057fefed5ace553767ba463baae1fc8452b09
Markdownb45ca0ee88756c963cab3edaa2a42b6b70723b05df2da522db3499c0bcbc5fe5
PDF
Publication pageeee90e4c1e54cdade62c8a56ba2e534919c1743a9b79bcb1723be389936ebc9d
Manifest1de16bb503f8035c2d30257a962eb3b604db068ff11298533875a37bcd653430

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
SignatureTHtyjJrJ+UA30QXmo8gcN0ZZag6EKP6LSim7dpOX5NZOHQTTDPPUPGSLSZKOQkQOuR6CJB+v93R7TefxNTmRDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:07:02Z
batch OT-TS-2026-W38-016 · RFC 3161 token · inclusion proof
root 8d90bf9341d96baa4328c218b6f85281...

Independent retrieval

2026-09-17T08:10:03.405573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007804
observed eee90e4c1e54cdade62c8a56ba2e5349...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:03.387423ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007804/manifest.json
observed 1de16bb503f8035c2d30257a962eb3b6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:03.368123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007804/publication.md
observed b45ca0ee88756c963cab3edaa2a42b6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:10:03.351658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000007804/publication.txt
observed 6fe4364b6265c0c8a55edadd2bd057fe...
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.