OpenTechnical

OT-2026-000083421

Publication integrity record

Three bellows cup vacuum gripper, three zone face, pump fed, sustained blow-off before set-down

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-2026-000083421) never changes.

Identity and time

Publication numberOT-2026-000083421 · never reused
Internal UUID01a0ae97-c964-7db8-9341-409ca7314cdc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083421
StatusPUBLIC

Content hashes

Canonical texte131f4c923dcd5140b52a951c442d520ddfb0ac0bb126b0de56b7dab4814d9b3
Markdown7699ca8b132c85db14f69c96c5b5b7d1f6e30307dba25de57da9228ad69333e3
PDF
Publication pagecd8307850bfce595cc25fab4e297a4f3878ee95793dcefb2552781885a819450
Manifestf5506ec6379d24947abd0195e333207b0c0091a25857e8f6eca7f1429e320eb7

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
Signature7LfeBCo59sY3GT3VTd7NZozOG1Vk0acwWnO99pXfuKY253VJo0nId2YTnRzi0cl2qVAnWW0FjFRLbP+0gCo/Cg==
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

2026-09-17T09:57:50.134479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083421
observed cd8307850bfce595cc25fab4e297a4f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:50.117341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083421/manifest.json
observed f5506ec6379d24947abd0195e333207b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:50.100010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083421/publication.md
observed 7699ca8b132c85db14f69c96c5b5b7d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:50.082232ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083421/publication.txt
observed e131f4c923dcd5140b52a951c442d520...
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.