OpenTechnical

OT-2026-000006750

Publication integrity record

Porous face vacuum gripper, two zone face, ejector fed, pressure verified, vented before 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-2026-000006750) never changes.

Identity and time

Publication numberOT-2026-000006750 · never reused
Internal UUID01a0a966-24ac-7e2b-a715-577d9e42533e · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:47:18.705436Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006750
StatusPUBLIC

Content hashes

Canonical texte37ffae36a620d299772e5638501d0899e5c6c655f2bde91b86e1bcbd20d1359
Markdownc8085851bf19e8f0df5b55c05542befb635daf15c15f73dea4422dd5b12ecdf8
PDF
Publication page6ff928dc446e7adf1ab5bcdc47791e27caa2a165a1e1b668941ba9b87eb4d2f8
Manifest0b504e4012867714501a0f7f53e45ac20c0c14baa3a19736c09962b4e2f8db7b

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
SignatureyNm6Xcagg9L7qIimiZr6508tXELUVay3FvHGUxo3oqfwk0r7X8td1VstpJXFn/3LzEOwLmlUPRdsZr3JgtU5Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T09:07:03Z
batch OT-TS-2026-W38-014 · RFC 3161 token · inclusion proof
root 2354c19da800f8df297acf3cddd64d4d...

Independent retrieval

2026-09-16T08:50:10.453803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006750
observed 6ff928dc446e7adf1ab5bcdc47791e27...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:10.440561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006750/manifest.json
observed 0b504e4012867714501a0f7f53e45ac2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:10.425890ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006750/publication.md
observed c8085851bf19e8f0df5b55c05542befb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:10.413434ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006750/publication.txt
observed e37ffae36a620d299772e5638501d089...
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.