OpenTechnical

OT-2026-000087081

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, 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-2026-000087081) never changes.

Identity and time

Publication numberOT-2026-000087081 · never reused
Internal UUID01a0ae9a-9f2d-7bcc-a7e6-1988271dc19e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:44.027043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087081
StatusPUBLIC

Content hashes

Canonical textb7e1d5830e983326c885b49ec3bcb373210c0d4e53533cb7a28c7309156ebb92
Markdown12c4aac06d7d4d914dcf093a6d43ea23c4417648ea70c57e93e8b42e0fa41fef
PDF
Publication page1e02df5d786d1f78de717a9cfea96e609b63ef439a69ef78731f6ac477280040
Manifest93f5978220b8bb4bc135dff2ecc3e251b7de2e8a407256fa2baaeec91d515d8f

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
Signature1lJoovuNQx/jpIbvy9a6sNrLRooxx+TtDbI2MhX0cA49+zUNekyCo7yahN4cpO5x09sMYDm5jVIOW8KycfJeBA==
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

2026-09-17T09:51:18.798306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087081
observed 1e02df5d786d1f78de717a9cfea96e60...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:18.778465ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087081/manifest.json
observed 93f5978220b8bb4bc135dff2ecc3e251...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:18.761491ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087081/publication.md
observed 12c4aac06d7d4d914dcf093a6d43ea23...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:18.725697ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087081/publication.txt
observed b7e1d5830e983326c885b49ec3bcb373...
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.