OpenTechnical

OT-2026-000071486

Publication integrity record

Single bellows cup vacuum gripper, pump fed, vented 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-2026-000071486) never changes.

Identity and time

Publication numberOT-2026-000071486 · never reused
Internal UUID01a0ae91-e0ed-728a-8391-b8d097988386 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:11.039722Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071486
StatusPUBLIC

Content hashes

Canonical textd147ee2bd6310a4caf0f80bdccbe1e0169be4ebd87c6cb67aa77265b327b9978
Markdown340b3e3dbef45ed2d22ec94b28ad56f86362a8e9c1973fae7ee11b89c465ac5f
PDF
Publication pagedff755fea8f11be93a87f68d1d0614ca626bda231779e1a99246ca4ebe8b3dd1
Manifestaa13041160234efb9146dabd3f0338f60437f1c52caf2d5354c39b0cf5450b5e

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
SignatureNg8iKsHUuswsMAX+d5nzEy8jE4J+PgqEjbFmyHqww2wO1NdoKjRRl0Pjw1b+ahDfYkkMkH//qTRaeIMDSzfQAw==
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

2026-09-17T10:25:07.759575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071486
observed dff755fea8f11be93a87f68d1d0614ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:07.740899ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071486/manifest.json
observed aa13041160234efb9146dabd3f0338f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:07.720893ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071486/publication.md
observed 340b3e3dbef45ed2d22ec94b28ad56f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:07.702161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071486/publication.txt
observed d147ee2bd6310a4caf0f80bdccbe1e01...
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.