OpenTechnical

OT-2026-000086271

Publication integrity record

Two cup vacuum gripper, two zone face, common isolation valve, pump 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-2026-000086271) never changes.

Identity and time

Publication numberOT-2026-000086271 · never reused
Internal UUID01a0ae9a-2c95-77ff-b8b4-677350d13899 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:14.823225Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000086271
StatusPUBLIC

Content hashes

Canonical texta58dd798b235afb8f1094c8028a4fddd294ce0bcb41af132bf2b546ff42319ff
Markdowna86342e3762aa24ccd709d723cecc2481148208f1008e6f3eeba690170ec0f01
PDF
Publication page34841b928e01fd7b7bd8e91b7ffb844e5c1155548ce1edd1ec9a7cb2ef2788a7
Manifest1a929fd6ae3390721a1ac91d5819f4f91b57f55c862f8fc8e845e643281cc615

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
SignatureBuTYE0vIwC8gPZ42tMID/sZWipdcDE0DNu283mAe0kjOjZOx7OyT3gP65xOB93WIh++bdSbbrab9msajBxOBAA==
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

2026-09-17T09:51:56.439282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086271
observed 34841b928e01fd7b7bd8e91b7ffb844e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:56.421881ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086271/manifest.json
observed 1a929fd6ae3390721a1ac91d5819f4f9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:56.405174ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086271/publication.md
observed a86342e3762aa24ccd709d723cecc248...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:56.386282ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000086271/publication.txt
observed a58dd798b235afb8f1094c8028a4fddd...
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.