OpenTechnical

OT-2026-000006697

Publication integrity record

Porous face vacuum gripper, per zone isolation, pump fed, contact triggered, vented after set down

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-2026-000006697) never changes.

Identity and time

Publication numberOT-2026-000006697 · never reused
Internal UUID01a0a964-4bde-7832-a30d-71f6885097ff · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:45:17.664755Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006697
StatusPUBLIC

Content hashes

Canonical text8a67a8cee1518e6038c1f0fcd01b0cfba8873c772d96ef732ff8606b06f36ba0
Markdown3087b3ae6c8e6b9e48857173e320f3dbf2e59cf126854cc6abc32bf9625b4795
PDF
Publication pagede4655d9aed3fcb65c663c8e3c8a4bd1d1f11b02e4f9dabdf37daf8866677999
Manifestcaa3e5ef6e1a99624956acae29129d459140e78d1c0d3d6f01a029534ff1bf18

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
Signature/uQrU7REuiOTKv0tjw/309ZwnSSzQ1VvVY1dTfqHiMVb/TrYYLEQhh/YxYreIDLIu8e/9DBF+X5PBp60iovkAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:47:03Z
batch OT-TS-2026-W38-013 · RFC 3161 token · inclusion proof
root e368e9c5ab06dc5cb1b0682dd54c11f5...

Independent retrieval

2026-09-16T08:50:16.167457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006697
observed de4655d9aed3fcb65c663c8e3c8a4bd1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:16.154320ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006697/manifest.json
observed caa3e5ef6e1a99624956acae29129d45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:16.141194ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006697/publication.md
observed 3087b3ae6c8e6b9e48857173e320f3db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:16.127494ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006697/publication.txt
observed 8a67a8cee1518e6038c1f0fcd01b0cfb...
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.