OpenTechnical

OT-2026-000063557

Publication integrity record

Four cup vacuum gripper, four outlet manifold, plant vacuum fed, manifold pressure sensor, 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-2026-000063557) never changes.

Identity and time

Publication numberOT-2026-000063557 · never reused
Internal UUID01a0ae8c-f945-7e78-96e4-4f32d837fc51 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:47:49.602795Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000063557
StatusPUBLIC

Content hashes

Canonical text4a2303b42527156757448e46a1ad904ca3f915f17ed9800bc62b60f236b3f611
Markdownb78bc20761324f51d648b791434e64cb74af199698d838f5d3b824fa60282c9b
PDF
Publication page27a2fcafb57315a601e18f4ae45c8e467227de896015c9c49a0369d95434e862
Manifestd599f733b0347392e6111c70368f338207622b5fbb3c13b0e36a8b1d67b7f073

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
SignatureVdf7sl9uPsblSky9JMmDguJEWE419Poj0qku8Refh7mBZBx8fmhBlcckEnAJt6ctLgXH3lqhTGIPr49FEe6CCw==
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

2026-09-17T10:37:33.668052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063557
observed 27a2fcafb57315a601e18f4ae45c8e46...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.646970ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063557/manifest.json
observed d599f733b0347392e6111c70368f3382...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.624631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063557/publication.md
observed b78bc20761324f51d648b791434e64cb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:37:33.603865ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000063557/publication.txt
observed 4a2303b42527156757448e46a1ad904c...
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.