OpenTechnical

OT-2026-000078692

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, plant vacuum fed, 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-2026-000078692) never changes.

Identity and time

Publication numberOT-2026-000078692 · never reused
Internal UUID01a0ae95-ccbb-7fdb-86f5-d19498cb7a0c · 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-2026-000078692
StatusPUBLIC

Content hashes

Canonical text3c58a58807161a256bb87fe3025ec1ec2f41f287b813c95e9af2c5b573ae5589
Markdown8fc3bf0203fc51cc2769ca9f9a1c79defbb56bfc68e8391b401c96ac23bffc4f
PDF
Publication page75cd3674ed216ea4299d44622d4b28f079d041f6df37e48bed257334be6e3d84
Manifest8f31083f13bc428d369c1799a3281d59df189fbb3305d1c40664780c07e0592a

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
SignatureG7lcnmwNGPA8N0oWE8GH6x51P+awMAENMooL4zXME1Sq24bhupBnX6C3i/xkjlaJe6QKbToxtQORm0caflT8Bg==
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

2026-09-17T10:05:28.371974ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078692
observed 75cd3674ed216ea4299d44622d4b28f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:28.293769ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078692/manifest.json
observed 8f31083f13bc428d369c1799a3281d59...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:28.277689ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078692/publication.md
observed 8fc3bf0203fc51cc2769ca9f9a1c79de...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:28.261119ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078692/publication.txt
observed 3c58a58807161a256bb87fe3025ec1ec...
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.