OpenTechnical

OT-2026-000081556

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081556) never changes.

Identity and time

Publication numberOT-2026-000081556 · never reused
Internal UUID01a0ae97-0f71-78d9-8ae6-c59ee9ccdb6b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081556
StatusPUBLIC

Content hashes

Canonical text4c638dde2263b623354babd47efc69721ba1de80c2ad427a031db6dee385d3ab
Markdown1a6108583a19649dc1b97f071165409b6e1cfc7ce7a6932c1f964fe5551f337e
PDF
Publication page72eb5e07d6194db3fc60fd96664d7ce6489ddaf11ba30023d2fbe67a6f9d4921
Manifest7d1c531ce733891a7eecee0d9f30843496fe70e93e3a4dbc1e5f05351b224c2a

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
SignaturegB2eR9dWzfVz57aWSz/TaZdmePsHivTUF4rt+fHcnZr6qki2WHAEbynn9QV6wVv0nIFFiiv8vu1Xj0mNmmMdAw==
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

2026-09-17T09:59:34.992407ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081556
observed 72eb5e07d6194db3fc60fd96664d7ce6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.976797ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081556/manifest.json
observed 7d1c531ce733891a7eecee0d9f308434...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.959533ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081556/publication.md
observed 1a6108583a19649dc1b97f071165409b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:34.942553ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081556/publication.txt
observed 4c638dde2263b623354babd47efc6972...
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.