OpenTechnical

OT-2026-000012499

Publication integrity record

Foam pad vacuum gripper, four zone face, single stage ejector, 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-2026-000012499) never changes.

Identity and time

Publication numberOT-2026-000012499 · never reused
Internal UUID01a0ae6d-39f7-70a9-a6d8-122011075dc7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:08.998406Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012499
StatusPUBLIC

Content hashes

Canonical text3f8f9c63743e88fb7873993a002f8b82ce6d21528aefea254ef2eed2eebc5973
Markdown950395025be6b09c60945201826172944b86e86d42e21d4c87139b535a99d97d
PDF
Publication pagee025c49907b0e48e2b6123f58ba9a020c93663bf9ccc6959a50a922df5175e0b
Manifesta6624d5934bc77a967c2735422719b989955252982c1945e5558150171a26fb0

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
SignaturebqaQ5gXbwEHrVz7CujKbcTYomVE43LIJMxROBUB+Bq1S66eO9QNZnhNh8SVvoRRYLImOT0wIUKcVk2ceRa8BAw==
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

2026-09-17T12:12:01.036519ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012499
observed e025c49907b0e48e2b6123f58ba9a020...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:01.019867ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012499/manifest.json
observed a6624d5934bc77a967c2735422719b98...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:00.999528ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012499/publication.md
observed 950395025be6b09c6094520182617294...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:00.980010ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012499/publication.txt
observed 3f8f9c63743e88fb7873993a002f8b82...
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.