OpenTechnical

OT-2026-000079756

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000079756) never changes.

Identity and time

Publication numberOT-2026-000079756 · never reused
Internal UUID01a0ae96-4375-7462-b47f-85113f001b0d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079756
StatusPUBLIC

Content hashes

Canonical textbfe70b474849863676edc32163caff66033aa0007089489a9b0645adf0062adb
Markdown3cf26c4cf92b7aacd02297320fba629cb72327b2735ed7881365fa19823135ff
PDF
Publication pagef221a9585a260c93028ad7530fe4295ea3a481a8d5cf68d3a93b337523dfe0a1
Manifestce3d3df93df40de51acc48124a5543aa2df6ed9cc0f3885a222e9300e2193f3b

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
Signature1MFBzLOnhL8cVum3n+YDLs44WCkunvgI7KYfhzjqrlPMmNGzCXvd2rfe2DRbdvcx5GbJzeluv11Ma+jDvyTZAA==
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

2026-09-17T10:03:37.422008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079756
observed f221a9585a260c93028ad7530fe4295e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:37.405792ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079756/manifest.json
observed ce3d3df93df40de51acc48124a5543aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:37.387441ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079756/publication.md
observed 3cf26c4cf92b7aacd02297320fba629c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:37.368116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079756/publication.txt
observed bfe70b474849863676edc32163caff66...
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.