OpenTechnical

OT-2026-000078254

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, 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-2026-000078254) never changes.

Identity and time

Publication numberOT-2026-000078254 · never reused
Internal UUID01a0ae95-7c27-71aa-87a4-3edfa4786243 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078254
StatusPUBLIC

Content hashes

Canonical text67cb662984c48b634cd4774dda0b5bbd57a9106970be0c46c10d7be645bd604c
Markdowncee049211af6a74c6fdc6dd5c66af7d7b36742a27eb5b16b925140f3351a8e55
PDF
Publication pageba90bffb64d672d3a2c554793963936ab6443b7213ebc7d0d4219a547edc56df
Manifest1db3d87da8be9ea992ac199cdeca1e80bef1d70eb6ec332b19e8c2d6dc47ade0

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
Signaturet2Q3s8fJNrMjNcnu83qrOiX+wcP3RAL4BgAmUyrlow8hnnRw3vn09ATUs7e7vN8+a82g8ZuDOGz29+gdrBoVBg==
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

2026-09-17T10:06:12.810186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078254
observed ba90bffb64d672d3a2c554793963936a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:12.791364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078254/manifest.json
observed 1db3d87da8be9ea992ac199cdeca1e80...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:12.771750ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078254/publication.md
observed cee049211af6a74c6fdc6dd5c66af7d7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:12.745990ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078254/publication.txt
observed 67cb662984c48b634cd4774dda0b5bbd...
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.