OpenTechnical

OT-2026-000015852

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, 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-2026-000015852) never changes.

Identity and time

Publication numberOT-2026-000015852 · never reused
Internal UUID01a0ae6e-0c4c-74d7-8649-1b32d1b7023f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015852
StatusPUBLIC

Content hashes

Canonical textb8113a0450e5b85cfe957486ae1bc208c4a7225c63b03a83aa57f636eb43bf56
Markdownbd1f2ac7503e8e006b226e4461c18a8dd709dfbbbe1802a98258f4a18bcd991c
PDF
Publication pageb9ecfa16b9aa48abda25c25a3505f90d922f69a66025965bffbdc4003d02f622
Manifest45ade1bd984c254f323a37b60914ad12f1b9611555cb2404d135c11536293069

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
Signaturec3Iyo5H97EtsJb7SuLTTwjFKM2h4sJyUdOg7Se9ilAv9JDb+ABf2Pfz6PcnzxLZKnCv7VmFQoRnTnTps+38rDw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:05:17.334274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015852
observed b9ecfa16b9aa48abda25c25a3505f90d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:17.311610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015852/manifest.json
observed 45ade1bd984c254f323a37b60914ad12...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:17.290979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015852/publication.md
observed bd1f2ac7503e8e006b226e4461c18a8d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:17.271034ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015852/publication.txt
observed b8113a0450e5b85cfe957486ae1bc208...
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.