OpenTechnical

OT-2026-000074076

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented 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-2026-000074076) never changes.

Identity and time

Publication numberOT-2026-000074076 · never reused
Internal UUID01a0ae93-2b8f-7fae-8c42-d9d48d786cca · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074076
StatusPUBLIC

Content hashes

Canonical text39d595d5388280448e51a882437fc90a4e13846387142d6e0bdbd53691f043d5
Markdownb247570f40d71361dc8ed4627b077e9cf14a64473cc67a85351f1c88a22e21de
PDF
Publication page2bdd6b2d0539abd3abdb67f64ecceca96f8780c419828e9ebd99ffe8c9d66797
Manifest5e5a871d326ce35e52abbbd395c29df6431079da743eeec3cbb4bf5999b08af9

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
SignaturepXyKlOB+37TETqpzNWaYqFbrjhpPAxJuZItp77gMG9o/hvRGnEohc3adLtXK/O0XcnE69HEFPE+Aecr7ksfKDA==
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

2026-09-17T10:20:58.662812ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074076
observed 2bdd6b2d0539abd3abdb67f64ecceca9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.642609ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074076/manifest.json
observed 5e5a871d326ce35e52abbbd395c29df6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.622103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074076/publication.md
observed b247570f40d71361dc8ed4627b077e9c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:20:58.602338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074076/publication.txt
observed 39d595d5388280448e51a882437fc90a...
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.