OpenTechnical

OT-2026-000072505

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, single stage ejector, 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-2026-000072505) never changes.

Identity and time

Publication numberOT-2026-000072505 · never reused
Internal UUID01a0ae92-89d8-72a7-a8ce-f0be27b9ae36 · 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-2026-000072505
StatusPUBLIC

Content hashes

Canonical text98d577ae5e4c85b44443e933c8afa2afc0bea9a4b8fe692e56c1441e76c9d87e
Markdowndbe1a076175144c4cb617c820e6a538de777ed4368afedf5886a4fe4e21d66cd
PDF
Publication page4709c7c3e192eeabf9be9db210a8d4fa106cdc61bee7976ad171e52b51bd2d2b
Manifestfff5fc04b95de636ec48639d3001be4f62e3153c73bb2c75c9d33f7f748750cb

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
SignatureNPOFiOSE8ncOifQ8A7/wsfI5WTH3mXRJvCVXYNlNEXO9J+lfgjpRpJ852MhmyunYk5kTrF7T14B2LForZFjWDw==
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

2026-09-17T10:22:19.958039ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072505
observed 4709c7c3e192eeabf9be9db210a8d4fa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.941127ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072505/manifest.json
observed fff5fc04b95de636ec48639d3001be4f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.922384ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072505/publication.md
observed dbe1a076175144c4cb617c820e6a538d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:19.902169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072505/publication.txt
observed 98d577ae5e4c85b44443e933c8afa2af...
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.