OpenTechnical

OT-2026-000078074

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented after 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-2026-000078074) never changes.

Identity and time

Publication numberOT-2026-000078074 · never reused
Internal UUID01a0ae95-6e8c-7dfe-a8d5-cdd728f8ee9f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:03.897850Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078074
StatusPUBLIC

Content hashes

Canonical text483690f294024d11dcca6f47280f1b2a01866a768cf7f5b5f6caefc575a17893
Markdown0aa0d843b296a2399c98397ad7f4fc2a608b413160038df6b4f52334867679e4
PDF
Publication page9a6f72b09b4407110c8c62a69a211713db223be3d3237e982fc98c549be27903
Manifest4b1e3e25af82b6f8711b4639a92c91f22e18fc5ed393931121b0b6f64f57df8a

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
SignatureJ5n8B30l2zE7TMDamn7C8tifWLZpPu18LMe63tbWkchou9tiBqoMve3FCH4CCuhXubjVkgmrY4VybYaCtqWGDA==
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

2026-09-17T10:06:46.847129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078074
observed 9a6f72b09b4407110c8c62a69a211713...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.827776ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078074/manifest.json
observed 4b1e3e25af82b6f8711b4639a92c91f2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.808621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078074/publication.md
observed 0aa0d843b296a2399c98397ad7f4fc2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:46.790977ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078074/publication.txt
observed 483690f294024d11dcca6f47280f1b2a...
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.