OpenTechnical

OT-2026-000090982

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, 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-2026-000090982) never changes.

Identity and time

Publication numberOT-2026-000090982 · never reused
Internal UUID01a0ae9c-c011-7c9c-8efc-2f53e9ffc3c5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090982
StatusPUBLIC

Content hashes

Canonical text1d43a7f9fc3d0dd94fa176bb3f12e8018a11e252539b1104ef3b4c42c2178776
Markdown219fea674827071b5a3af2eccedd55217520be4893789a9b10f6131cb1f1a1e7
PDF
Publication page8b2f233f89938afe45619a5f5dbe8b9430e1cd14945c32b875f7985c681e849f
Manifest849ac013484222ae066bf36ce489cb963fc2ecc2b2d2b8d8e9319cd6c38c3c6b

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
Signaturem4T04JnPMgVFy9JHWlH3dqzi1IolUIflEsJ1Pqh7WgmuMoA491LNoRs4Rs+dCUzcsfswVr87iCMDlohOSh17CQ==
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

2026-09-17T09:44:12.623654ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090982
observed 8b2f233f89938afe45619a5f5dbe8b94...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.604658ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090982/manifest.json
observed 849ac013484222ae066bf36ce489cb96...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.587308ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090982/publication.md
observed 219fea674827071b5a3af2eccedd5521...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:12.569028ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090982/publication.txt
observed 1d43a7f9fc3d0dd94fa176bb3f12e801...
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.