OpenTechnical

OT-2026-000006975

Publication integrity record

Vacuum cup gripper, common isolation valve, two stage ejector, pressure verified, contact triggered, silicone cups

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-2026-000006975) never changes.

Identity and time

Publication numberOT-2026-000006975 · never reused
Internal UUID01a0a96e-3cc6-7306-926e-3f37e88d7575 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:56:09.161317Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006975
StatusPUBLIC

Content hashes

Canonical textc451a2fd91817a0cc4ad20ce68f88848efab75d260e4573722d0118fc4e9f85b
Markdown88c62759131fc5d66c02be0a1a80c1075ce6eebe505e420caa7e209455b3f71c
PDF
Publication page8f3a32cc53ecaf96366f178794ef6f7ef584c235a0d0450e614bae5fb2bdc27a
Manifest04ea66df3d61f2b7e67bfbad1e6890c2c2f8b3574db4111afa95b211c95743c0

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
SignatureGpRA808fxVBlDcCv8sQHXFDtdzIyjL7u5meOUGIu+rZ+J9iB5N0w4SQ8KmbNp0rtbbxhvd7KkCqMqAXGX8CrCA==
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

2026-09-16T09:00:15.929801ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006975
observed 8f3a32cc53ecaf96366f178794ef6f7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:15.915855ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006975/manifest.json
observed 04ea66df3d61f2b7e67bfbad1e6890c2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:15.893910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006975/publication.md
observed 88c62759131fc5d66c02be0a1a80c107...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:15.880457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006975/publication.txt
observed c451a2fd91817a0cc4ad20ce68f88848...
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.