OpenTechnical

OT-2026-000074195

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, manifold pressure sensor, pulsed blow-off before set-down, on a tool changer

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-2026-000074195) never changes.

Identity and time

Publication numberOT-2026-000074195 · never reused
Internal UUID01a0ae93-7178-7b21-9ede-e57ad1f0dbfe · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074195
StatusPUBLIC

Content hashes

Canonical text8f20e582ace6144e8532e342c6b7cf1cfeb3f08f1cbf6418fe9870a93e82e8a0
Markdown5c2133798b226ee01e710ee5033c1fece50fffbe4ea5641e9c17a8e00208ebbb
PDF
Publication pagedaeab8bb5b20b6f4982e593a8b8f8281890ca7427a35f3b9abccd34f408eaf20
Manifest4c8ce7835aca6e4bab0db542b188f5499d82a2bc211c557463c41b46fa0af635

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
SignatureGzVntXrjPWOHWmE4GPd1gOp8auADgfb7kZY2AHPLY9XsIM5nvav1LwNRbKHNFAg8Bz9CUUvNVT7GvHYbXYavBw==
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

2026-09-17T10:19:03.016930ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074195
observed daeab8bb5b20b6f4982e593a8b8f8281...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.998313ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074195/manifest.json
observed 4c8ce7835aca6e4bab0db542b188f549...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.980000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074195/publication.md
observed 5c2133798b226ee01e710ee5033c1fec...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:02.961935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074195/publication.txt
observed 8f20e582ace6144e8532e342c6b7cf1c...
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.