OpenTechnical

OT-2026-000026976

Publication integrity record

Single bellows cup vacuum gripper, 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-2026-000026976) never changes.

Identity and time

Publication numberOT-2026-000026976 · never reused
Internal UUID01a0ae72-3453-79b2-8646-4382adcf526f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:18:35.358864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000026976
StatusPUBLIC

Content hashes

Canonical text7ffe259754905edef283a7ca80d99c8f239ccbe23d4652082cc012497b46c766
Markdown3e00c8901c94367373e948aedf6a50a2e2616bd1aa4103328bb59d47db25c4a0
PDF
Publication page859d2472533c918e299befb1091ad273513975252c623f87f1088f2244b7633e
Manifest6d01e7817b1d1440ac6eaca7250471da8bba561ec01ea22a214b186746d42cb2

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
SignaturetF737RqHc0C20WrrgdACnIBjS3GaJaIqLMzx0gRaClp46F4K2FrP3rUNohaQ2seljgTyiGjxBNXnWTSkeKEoAw==
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

2026-09-17T11:43:36.056898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026976
observed 859d2472533c918e299befb1091ad273...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:36.040695ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026976/manifest.json
observed 6d01e7817b1d1440ac6eaca7250471da...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:36.023559ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026976/publication.md
observed 3e00c8901c94367373e948aedf6a50a2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:43:36.007366ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000026976/publication.txt
observed 7ffe259754905edef283a7ca80d99c8f...
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.