OpenTechnical

OT-2026-000028983

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, plant vacuum 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-2026-000028983) never changes.

Identity and time

Publication numberOT-2026-000028983 · never reused
Internal UUID01a0ae73-2a9e-7d3b-8e73-9908e6f2c3aa · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:38.288761Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028983
StatusPUBLIC

Content hashes

Canonical textde4297c648bcf7c716ae55bdbdc2606daa12cbbf8144810ac9678ba6c9267cfa
Markdown79260a2068eefbb2e5b68cd24153267e819436e12753e3500be1c3ea7e093cae
PDF
Publication page840f863e73780d868bcd5acecb579b4219a2cfbcf4ae1534a710d689e90e434c
Manifest00d574c536aef46c4acd814c44529167c51b8da48a40e08a2851086e94be73f1

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
SignatureEh9Z7J4SDv8FhEF2anaJmw3qFvnEIzERHkiGeAeaeKLpCDl0UFyL3xzA8/SaICsyoRvOGmk3Wj4RZYALKwFfCQ==
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

2026-09-17T08:20:05.213231ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028983
observed 840f863e73780d868bcd5acecb579b42...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:05.191898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028983/manifest.json
observed 00d574c536aef46c4acd814c44529167...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:05.043989ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028983/publication.md
observed 79260a2068eefbb2e5b68cd24153267e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T08:20:05.025618ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028983/publication.txt
observed de4297c648bcf7c716ae55bdbdc2606d...
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.