OpenTechnical

OT-2026-000084381

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, plant vacuum fed, sustained 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-2026-000084381) never changes.

Identity and time

Publication numberOT-2026-000084381 · never reused
Internal UUID01a0ae98-5b62-7603-bd0e-dccf86e08e4b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:00:15.619216Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000084381
StatusPUBLIC

Content hashes

Canonical text83c94e65f9f89f1ac002c6b5e6c904d45f9020e0c26934639edb55427bd0edac
Markdown9280f32b6c59bf239c590c3c45a50467a1151e0a1860ff56c76b89a9a679c02e
PDF
Publication pagee4cae553d94e6962ba00e16c6810abef50b4615d32a0ffd529052726a6e47568
Manifest1e640ed70054a1c56ea86c3567d79df2440fceb93538afe94b80bf78315705c7

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
Signaturep0PwYb5dBUmOMbPH092d9UW66NrjFBkJYGqlP9/ZSWjmQr9lvERw9RXjNCAYYuU9EoTI6Amlb13uaNdbLydzCw==
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

2026-09-17T09:56:19.293873ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084381
observed e4cae553d94e6962ba00e16c6810abef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.277107ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084381/manifest.json
observed 1e640ed70054a1c56ea86c3567d79df2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.257687ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084381/publication.md
observed 9280f32b6c59bf239c590c3c45a50467...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:56:19.240713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000084381/publication.txt
observed 83c94e65f9f89f1ac002c6b5e6c904d4...
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.