OpenTechnical

OT-2026-000006882

Publication integrity record

Vacuum cup gripper, common isolation valve, two stage ejector, contact triggered, 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-2026-000006882) never changes.

Identity and time

Publication numberOT-2026-000006882 · never reused
Internal UUID01a0a96a-b38b-7cc1-9123-fe9d7c92f882 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:52:17.423354Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006882
StatusPUBLIC

Content hashes

Canonical textd83238a6a05bd68b2afddc696a8f35a8d99e1bd8d42c7f3d09fdfca08206b416
Markdown5a02f9c1afe1fb3ace5bf995f9fc39e21309b61c2d30c107625c09ecafbdb01d
PDF
Publication page2fda6e8a53a6db926c9eaf4f14408c2e12e724d18fbe54ae5efbb336335cfc61
Manifestf9753c21ceb99eef2061f13dc67aea731d76a67247dcd1ca9d9b056f1ef8fa9c

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
SignatureUv/ZWcRHpyG81zs0IUijpeLzms5UcvBNhSfHiWawQta80LxGkJRQU67SQ6l736mlvX+u90+OSJ902kXyU9WSCQ==
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

2026-09-16T09:00:25.929972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006882
observed 2fda6e8a53a6db926c9eaf4f14408c2e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.917891ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006882/manifest.json
observed f9753c21ceb99eef2061f13dc67aea73...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.906364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006882/publication.md
observed 5a02f9c1afe1fb3ace5bf995f9fc39e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T09:00:25.893689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006882/publication.txt
observed d83238a6a05bd68b2afddc696a8f35a8...
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.