OpenTechnical

OT-2026-000087709

Publication integrity record

Foam pad vacuum gripper, four zone face, pump fed, supply line pressure sensor, sustained 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-2026-000087709) never changes.

Identity and time

Publication numberOT-2026-000087709 · never reused
Internal UUID01a0ae9a-cd55-7a4e-a6df-59bf935d663d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087709
StatusPUBLIC

Content hashes

Canonical texta7b933117b209075ac5aa01041363729dc4f15cf7563378f4a03ab6342be18d5
Markdown3c8bc789407d275bfd3f59cc8791783c1c0822ced09892a3f96328f45b18cd17
PDF
Publication page38df217b4b72abb0ac6a3d0372781a62e06fc35efb4fa82fb99268af14cceb46
Manifestf0ec5719ca84360ac5698bdae521d0aaa537daa5f56d3dbb570c28ab4692081c

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
SignatureRRXDacvaa2BXSiqb7L7N08FODlmMb5dsAAfmvPTCgRisoQ+NYAA0hljBMLUtB4dsqpzB1jsalPAk1IJmro9CBw==
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

2026-09-17T09:51:09.652196ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087709
observed 38df217b4b72abb0ac6a3d0372781a62...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.635955ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087709/manifest.json
observed f0ec5719ca84360ac5698bdae521d0aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.618991ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087709/publication.md
observed 3c8bc789407d275bfd3f59cc8791783c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:09.603042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087709/publication.txt
observed a7b933117b209075ac5aa01041363729...
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.