OpenTechnical

OT-2026-000028167

Publication integrity record

Two cup vacuum gripper, two 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-2026-000028167) never changes.

Identity and time

Publication numberOT-2026-000028167 · never reused
Internal UUID01a0ae72-a520-7052-bfd4-e1f4e791e8cc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:04.113553Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028167
StatusPUBLIC

Content hashes

Canonical text5542cabf26857e18f0b64a7b6ef1d9ddacbd873aec729ee9a744b1cbb7c5cac2
Markdown3ffeb8a79c7d129fbf3ccfa6fa826f758d56a0defbc92e3c20ef7f45ded234bd
PDF
Publication page3fc2aa2672b789366e079907d8aeca34b8445b7dc17128f2e7f978cf8ab5bf2d
Manifest7388d2efe32b9053cc618642e1de8f60dfe2231a750846c9ea010a3685de19c1

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
SignatureadHPX0khDZzQNIzlqXvfodrIAPToxV2XKmZKmCJLROkMR7LMo/McXR90r8CO02qFSyJt1j3gA0ErF/uhjlF7Ag==
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

2026-09-17T11:42:31.349318ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028167
observed 3fc2aa2672b789366e079907d8aeca34...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:31.332091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028167/manifest.json
observed 7388d2efe32b9053cc618642e1de8f60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:31.314173ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028167/publication.md
observed 3ffeb8a79c7d129fbf3ccfa6fa826f75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:42:31.289798ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028167/publication.txt
observed 5542cabf26857e18f0b64a7b6ef1d9dd...
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.