OpenTechnical

OT-2026-000067693

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, plant vacuum fed, manifold pressure sensor, vented after 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-2026-000067693) never changes.

Identity and time

Publication numberOT-2026-000067693 · never reused
Internal UUID01a0ae8f-6bdb-792c-a246-cb42c97eb09a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067693
StatusPUBLIC

Content hashes

Canonical textc87f6f9be03891c522870c7a476e17bc3d8e24d829e77d2b864896765bbfb1db
Markdownd4c9d519ac81a385eadec40826a85f7ba52fd1a7f67af218e9a54f3dc1a9b1b9
PDF
Publication page1552a385f7d145fc6f1b4bbe6ba0d64b53ea9d3573ba03c770100609e799dd1c
Manifest7d44afe030c89c791837266f5d3fdbd032898eaee9b30268bdb622d1e939e428

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
SignaturezQ+yYf+MB13AceMtTM0OeS3OStZmXKgTvxlKBzpapEUAlajdZJm7jmZjBGuPIAcg1aA82MkINuplIdGfCToDBQ==
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

2026-09-17T10:32:02.080529ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067693
observed 1552a385f7d145fc6f1b4bbe6ba0d64b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:02.061088ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067693/manifest.json
observed 7d44afe030c89c791837266f5d3fdbd0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:02.043464ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067693/publication.md
observed d4c9d519ac81a385eadec40826a85f7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:02.024297ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067693/publication.txt
observed c87f6f9be03891c522870c7a476e17bc...
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.