OpenTechnical

OT-2026-000078934

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, 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-2026-000078934) never changes.

Identity and time

Publication numberOT-2026-000078934 · never reused
Internal UUID01a0ae95-ccbe-77f6-8589-eb8483f089bb · 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-2026-000078934
StatusPUBLIC

Content hashes

Canonical text47afa921453800766979c975c237f0c7c005940e79eb5609278a6d627e2d25ea
Markdownd1c3bfdb3455340af20b0480d1f24574a228a91157722428230beed7b881b481
PDF
Publication page0ce59eb70297a809cdc61fb6f3bd5bc65e15382df7374ac0150837420d2cc616
Manifestdc23c7bc68033d46eb15ad904f291bf08b70d6f5019e8c8011f1f14bf2ce1dd3

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
SignatureDG8lWt8GXdP51h1vFWpW0JoX+UFsyg17GWQ4MWSdtoLdKbCq0HAQqWkh+eAcQ2z9Kfy2OkFNQ9SjXjDkZ2q8CQ==
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

2026-09-17T10:05:22.758653ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078934
observed 0ce59eb70297a809cdc61fb6f3bd5bc6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:22.739319ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078934/manifest.json
observed dc23c7bc68033d46eb15ad904f291bf0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:22.721349ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078934/publication.md
observed d1c3bfdb3455340af20b0480d1f24574...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:22.703008ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078934/publication.txt
observed 47afa921453800766979c975c237f0c7...
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.