OpenTechnical

OT-2026-000006953

Publication integrity record

Porous face vacuum gripper, three zone face, common isolation valve, two stage ejector, closed cell

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-2026-000006953) never changes.

Identity and time

Publication numberOT-2026-000006953 · never reused
Internal UUID01a0a96d-7ba7-7e89-8c14-ef1a9808f911 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:55:19.721891Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006953
StatusPUBLIC

Content hashes

Canonical text40334bfba38631a7a5bec2e8060f3106dfe5f738751542a87f69e6ba66198b71
Markdowne6eabd9117f4f06019caffec26a3d0cb508c4a9aedd0c89c661e0f146f94dab2
PDF
Publication page61e3127c854c8deccf90e414bc6ce790eeefd7bee95862a2135fc81d3a1c86b7
Manifest9bc00a084f5df0c9c6ec37bfbb3e0d22eefbaf29127f655595b5fc2a10d7308a

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
Signature/qF68o/9VjsJikkwBw4VW6lQul2UPJQzXr4QwgpUCLwVKCIRan80NLsyNWA+LaHI7tbmeyB9e0mvyIBnEvnjBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T09:00:18.240575ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006953
observed 61e3127c854c8deccf90e414bc6ce790...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.226475ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006953/manifest.json
observed 9bc00a084f5df0c9c6ec37bfbb3e0d22...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.213364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006953/publication.md
observed e6eabd9117f4f06019caffec26a3d0cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:18.199740ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006953/publication.txt
observed 40334bfba38631a7a5bec2e8060f3106...
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.