OpenTechnical

OT-2026-000003717

Publication integrity record

Porous face vacuum gripper, three zone face, common isolation valve, pump fed, pressure verified

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-2026-000003717) never changes.

Identity and time

Publication numberOT-2026-000003717 · never reused
Internal UUID01a0a90a-d55c-7155-87e7-c042752ecae5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:34.622738Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003717
StatusPUBLIC

Content hashes

Canonical text13caab809c26ffe1ccdc744203fafdf597f0d4aabdfa25133dbc3c5ddf6962f2
Markdown3e54b6b7b4a9f73a83bb415846d23575a5d037b9ebcd8016d92b70475b4fe170
PDF
Publication page44527c3d184172d94a571db4088eab4d66321001730a2f491ac7abd916fcafe2
Manifesteb124e1baf9304b5ae4c8ce8b85505caece9467f9ee0e2241fdc7a561e7ab4b7

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
SignaturehGFEs2KcQkou3RUIjuQqlZU8BNcdGhN/IFDMMnBQFFkNETNkGsPtkFXgI9m0TpBGoo1yNIFuylgmicBqDkQxDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T08:00:34.680929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003717
observed 44527c3d184172d94a571db4088eab4d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.665918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003717/manifest.json
observed eb124e1baf9304b5ae4c8ce8b85505ca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.651373ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003717/publication.md
observed 3e54b6b7b4a9f73a83bb415846d23575...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:34.634934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003717/publication.txt
observed 13caab809c26ffe1ccdc744203fafdf5...
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.