OpenTechnical

OT-2026-000077198

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, 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-2026-000077198) never changes.

Identity and time

Publication numberOT-2026-000077198 · never reused
Internal UUID01a0ae94-f508-775e-b255-074b1950a276 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077198
StatusPUBLIC

Content hashes

Canonical textab983d07f34957f20f651381b1a25583a2b8f6f629a982c6cffc43bc0e9d9a3b
Markdown59d1ee839c831e4bfa030beb23eb88b0dda3fd4f91fb54788a9297f146287653
PDF
Publication page42a9a1799be4e7328753718384276a63a0a86e9f09caaf747b72661f8e9b7e17
Manifestc80729eea0d6017a54871df48fd398cd36cb35653f4c5396a3e9cba686776e08

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
SignatureyM6gfv+mTKF/Fyuuy1cZDhKiwJEj4ln2bVHYe/iX0JHP2my09T9dBc0wy5Hrs3Jh7frCNNTcwLdEO74DN/gUDA==
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

2026-09-17T10:08:40.399369ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077198
observed 42a9a1799be4e7328753718384276a63...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.381826ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077198/manifest.json
observed c80729eea0d6017a54871df48fd398cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.364274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077198/publication.md
observed 59d1ee839c831e4bfa030beb23eb88b0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:40.345547ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077198/publication.txt
observed ab983d07f34957f20f651381b1a25583...
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.