OpenTechnical

OT-2026-000072544

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, three stage ejector, supply line 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-2026-000072544) never changes.

Identity and time

Publication numberOT-2026-000072544 · never reused
Internal UUID01a0ae92-89d8-73e6-b1b8-2099ffed10d1 · 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-2026-000072544
StatusPUBLIC

Content hashes

Canonical text8cadcf447f91c9fe45ad1f345f1879ef2df9958402ba9ec3a16e54643d44cd0d
Markdown0fef646436e5804382f9488285198e285dfdde8abc0e96b739060105e02a8f37
PDF
Publication page2c2150b048079ca83d24e02e1ebdd891c64324483226738b56fcbcdc30b51a03
Manifestb0c89b9561108179973bb1aa8f7d8071debb6987893d7fdd704a06508b2bb3e8

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
SignatureVwpsH3JgYteKGTTASc0Vbav1SQIiqbVAXGS6PvSJnuxd7mQ3k3ifzH5x8VBNDJkll9wer5vjzktMfVgk/UHNDQ==
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

2026-09-17T10:22:11.452829ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072544
observed 2c2150b048079ca83d24e02e1ebdd891...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.434309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072544/manifest.json
observed b0c89b9561108179973bb1aa8f7d8071...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.414592ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072544/publication.md
observed 0fef646436e5804382f9488285198e28...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:11.396456ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072544/publication.txt
observed 8cadcf447f91c9fe45ad1f345f1879ef...
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.