OpenTechnical

OT-2026-000078720

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, single stage ejector, vented after 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-2026-000078720) never changes.

Identity and time

Publication numberOT-2026-000078720 · never reused
Internal UUID01a0ae95-ccbc-7302-9dcd-0ba397e77775 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078720
StatusPUBLIC

Content hashes

Canonical textb4f33c93e6ac5d99f567972920c750681bf3e49fa0206ba65c1ab45a9043fca9
Markdown31243ac3824e6eb03f478130571cc8af8322a435fbc8b1fe15e9a88858f5df84
PDF
Publication pageac2bfe6a1cd8580be0f8c8447d5abeb724d283ad3f1d1d3ea1e2900eede9fb76
Manifest3ec4f6e6b16c4f780931f7cba4c12713c244f432e9f4476501ec34392c522972

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
SignatureVzgJw98NQi0lwLTGU3npB77dgdFQ8D0rCkIuBKoKxkXKz7nP3y3D5KO62eUxYBhUwOyzn0EFUcBLjRbRXjEbBg==
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

2026-09-17T10:05:30.191522ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078720
observed ac2bfe6a1cd8580be0f8c8447d5abeb7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.174023ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078720/manifest.json
observed 3ec4f6e6b16c4f780931f7cba4c12713...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.156992ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078720/publication.md
observed 31243ac3824e6eb03f478130571cc8af...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:30.103918ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078720/publication.txt
observed b4f33c93e6ac5d99f567972920c75068...
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.