OpenTechnical

OT-2026-000067644

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, sustained blow-off 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-2026-000067644) never changes.

Identity and time

Publication numberOT-2026-000067644 · never reused
Internal UUID01a0ae8f-6bdb-7a4e-8e90-0d010eaff696 · 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-2026-000067644
StatusPUBLIC

Content hashes

Canonical text2efd9e69c91861d093a30ab4e5091bf50db45ec3595f2edcc190d7f7c293f930
Markdownc19a28f0edd4b203f5aa174eb809f4f8fd9fb7bdddbb8914193cb666dd3de268
PDF
Publication page115cda81d47cc52e4f9d9932a5ad80cd10d55704cda63efc2809abbdd6b4d439
Manifestd74c57479f49c10ea76f83ef58c3cd7858875a48528e921b4cd6a62a121468c9

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
SignaturewoVoIjKt76M2I//vjvhpLoL7lvPZO7GqFjyJAQixRKOc+B+AZMx0lU80Uff7mSgqCIAZDCzv+0+1YxzPGjUzCQ==
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

2026-09-17T10:31:58.284416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067644
observed 115cda81d47cc52e4f9d9932a5ad80cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:58.268835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067644/manifest.json
observed d74c57479f49c10ea76f83ef58c3cd78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:58.252511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067644/publication.md
observed c19a28f0edd4b203f5aa174eb809f4f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:31:58.236909ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067644/publication.txt
observed 2efd9e69c91861d093a30ab4e5091bf5...
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.