OpenTechnical

OT-2026-000006779

Publication integrity record

Porous face vacuum gripper, per zone isolation, pump fed, pressure verified, contact triggered, closed cell

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-2026-000006779) never changes.

Identity and time

Publication numberOT-2026-000006779 · never reused
Internal UUID01a0a967-1fcc-7a56-99ee-c53672641e6f · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:48:22.991265Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000006779
StatusPUBLIC

Content hashes

Canonical textd0ed43e84d15c2d0ed20f00b19fba0c6d7ad69b5f514721636e9bd826df6ed10
Markdown25a9edb1d9ccda6560c91a1f23411c9ea7c68cfc11ee9ae9c8274feed257df86
PDF
Publication pagec2b617c5f68ba2dfb6c8a9784e967797735e620dbb99a5083b768ec543f10497
Manifest4584f20a35b4d2a09934f81cb21fbb4e51db91a300cb9be27c79936dcc27c45c

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
SignaturezQQWcp/+EmxIBplHN+q9RUijI2KYLRtpRUv8x6t2g72a0l/LYHkSc8doU/tyqyF7np7R/qWwJ3TaYjyUr+xaBQ==
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

2026-09-16T08:50:07.378011ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006779
observed c2b617c5f68ba2dfb6c8a9784e967797...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:07.237770ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006779/manifest.json
observed 4584f20a35b4d2a09934f81cb21fbb4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:07.225405ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006779/publication.md
observed 25a9edb1d9ccda6560c91a1f23411c9e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:50:07.213998ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000006779/publication.txt
observed d0ed43e84d15c2d0ed20f00b19fba0c6...
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.