OpenTechnical

OT-2026-000081989

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, pump fed, 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-2026-000081989) never changes.

Identity and time

Publication numberOT-2026-000081989 · never reused
Internal UUID01a0ae97-0f77-7405-ac5e-7cfbf90f41eb · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081989
StatusPUBLIC

Content hashes

Canonical text3f956376dc51f43c7c8a83353146c616f1ae7ac5d12d787a8a8f010292747133
Markdown727f120016368e88ab273bde7eeeff25826b4c6fe5d70405c91ec37eb039650d
PDF
Publication page1ca934726a127bca2c094de8df6c6c612f64c523eda3d4f6daf1fa58638c9ac7
Manifest854fd68fb2b5ffcc339611926a3e0887076dc3a59b7cf3f270c4bea9c914f810

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
SignaturecDuPL33g+zWWKo81yAGc43HpMBjx8l7FnvkZhZw7tRLg4GcUxZ5CI4XrHDb3hwcISJDgq71aDxsVFNG8r3ByAA==
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

2026-09-17T10:01:07.904493ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081989
observed 1ca934726a127bca2c094de8df6c6c61...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:07.886684ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081989/manifest.json
observed 854fd68fb2b5ffcc339611926a3e0887...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:07.868608ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081989/publication.md
observed 727f120016368e88ab273bde7eeeff25...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:07.850453ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081989/publication.txt
observed 3f956376dc51f43c7c8a83353146c616...
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.