OpenTechnical

OT-2026-000073820

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented before set-down

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-2026-000073820) never changes.

Identity and time

Publication numberOT-2026-000073820 · never reused
Internal UUID01a0ae93-2b8d-7d33-af85-6950158adec8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073820
StatusPUBLIC

Content hashes

Canonical text90a84e537d7c7f1a6dbdb4e741816c898ffb1a020e78669dfca173e77773f100
Markdowncc87f9c077d26b35394e5df0409cbcdeb96d18b7478cae28729d0cb83e0709e0
PDF
Publication page64f02b1cba6fe0949d0e9f6107e96715742c58dc5689e0967c24c5a186a4e288
Manifest6712894029eaadeeb4a6cd20f57c18ba32720e7b035627b2cb8c2311f70ae1eb

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
Signatureg1uAHv4d88kjxiCJlvH6H+C45NaYTCDB3/65E8+1nzVrLJpD9om7FNAsMmUBhMZvS7P+eRf/SyL9dft2DEHJDQ==
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

2026-09-17T10:19:56.626230ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073820
observed 64f02b1cba6fe0949d0e9f6107e96715...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.608580ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073820/manifest.json
observed 6712894029eaadeeb4a6cd20f57c18ba...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.588546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073820/publication.md
observed cc87f9c077d26b35394e5df0409cbcde...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:56.571546ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073820/publication.txt
observed 90a84e537d7c7f1a6dbdb4e741816c89...
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.