OpenTechnical

OT-2026-000078709

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, pump fed, 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-2026-000078709) never changes.

Identity and time

Publication numberOT-2026-000078709 · never reused
Internal UUID01a0ae95-ccbc-7ad1-8f77-2ca761fd3339 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078709
StatusPUBLIC

Content hashes

Canonical textc135bc0406ad7609178ccdde0eeb3d31ca307fc86ba112b606a1494893319ca0
Markdownd9bdcfc5320ae0d3c5c77a200a6bd57ba26516c4f30cd244955bc7d035f238ae
PDF
Publication pagec7b8dec96793229d020d9f4cc78747e16438413e1f7ae20fd60a83e735a1a39e
Manifest09faab4da9d74261abdb5ecb3680dd0c2421e4a640946961c3b41e9cd3df28c2

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
SignatureYcgr6FEut1/1F/1CRNAXCF1T53LJ5PK4ZLHpF/habpuJCeyvKVA3+i3ehv1ivge576eOvaWAMKdcYi56K+rwDw==
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

2026-09-17T10:05:29.444511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078709
observed c7b8dec96793229d020d9f4cc78747e1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:29.426921ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078709/manifest.json
observed 09faab4da9d74261abdb5ecb3680dd0c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:29.408404ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078709/publication.md
observed d9bdcfc5320ae0d3c5c77a200a6bd57b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:29.390828ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078709/publication.txt
observed c135bc0406ad7609178ccdde0eeb3d31...
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.