OpenTechnical

OT-2026-000072831

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, plant vacuum fed, supply line pressure sensor, 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-2026-000072831) never changes.

Identity and time

Publication numberOT-2026-000072831 · never reused
Internal UUID01a0ae92-89da-7004-bb69-1f009f07b7ab · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072831
StatusPUBLIC

Content hashes

Canonical text3dfac5517aafced0bf3e3d7931ad18669c5d27edbab9530b0dafb8f7fc99bd25
Markdown7d1c016031a64b397d01572e1e704f9a3662f443924a38a0defb07a8aa70a799
PDF
Publication page9edf0b5475e5b6f3ff016972ef6132381ed546886f046d6a000f6e380b039bf1
Manifest1d82d2c689a711190cc98f462869ed1da6226869031f9f691c122789e21465c7

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
SignaturejAdGxl8vTuyjcdYYZlUX6hvDtrTzB+cxuWrr19xgbgU2l5/NLDGJq5804WzDcOtGYpVVtdP8edruiiE/F16oBA==
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

2026-09-17T10:22:45.144120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072831
observed 9edf0b5475e5b6f3ff016972ef613238...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.125868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072831/manifest.json
observed 1d82d2c689a711190cc98f462869ed1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.107281ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072831/publication.md
observed 7d1c016031a64b397d01572e1e704f9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:45.090240ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072831/publication.txt
observed 3dfac5517aafced0bf3e3d7931ad1866...
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.