OpenTechnical

OT-2026-000089590

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, manifold pressure sensor, sustained 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-2026-000089590) never changes.

Identity and time

Publication numberOT-2026-000089590 · never reused
Internal UUID01a0ae9c-1a21-7e17-9f7c-27ddb25c8995 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089590
StatusPUBLIC

Content hashes

Canonical text58c34fdb4116e31ff0e2599eaedce5529bc171c4553c2996052841c0915694d3
Markdown754b44b65f5f155717e361d7a2719a6287ce5c8e34065924b9da6f15d2450ecf
PDF
Publication page1d9f814f3853c12ef108d635f4281836da9929fcc4fd90ababa29ad2786bb584
Manifest6b8ca915569c14640dcf63cb27374ea97793b5ef78c4b4001c1f35eba5ff9115

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
SignatureirYnrhkaun/R3zz8eZmCwskVZ417i6XZbfPl3AiMdqXassoKZxRFQuRwrOriCJfhAo4TNUpr9XtiWSO5xSBABA==
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

2026-09-17T09:46:34.006928ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089590
observed 1d9f814f3853c12ef108d635f4281836...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.988653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089590/manifest.json
observed 6b8ca915569c14640dcf63cb27374ea9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.970728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089590/publication.md
observed 754b44b65f5f155717e361d7a2719a62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:33.952071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089590/publication.txt
observed 58c34fdb4116e31ff0e2599eaedce552...
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.