OpenTechnical

OT-2026-000077289

Publication integrity record

Four cup vacuum gripper, four zone face, common isolation valve, single stage ejector, pressure sensor per zone, pulsed blow-off 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-2026-000077289) never changes.

Identity and time

Publication numberOT-2026-000077289 · never reused
Internal UUID01a0ae94-f508-767e-87cc-1aaf720118c9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077289
StatusPUBLIC

Content hashes

Canonical textfa01c3380a3ee9247300ad2d01a35f8de9a2debe825fb0b1f92e075ed614de23
Markdown993cab6db692746c39c34b63838905f032337f492cd01a4504d1bd36fedb7f4e
PDF
Publication pagedf280c4a1b99af77f3b2775f7dba01e0f1352fff88ebb904f12315d458cb9fec
Manifest6a6d0ab8941d68045c13f3ff18d7a51858d82a66fbb35340f3f21f836f09152d

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
Signaturebpi9ZvqmhB12bIAPqdR4AYUaf5F0EiweVg6jCRt84VLypawI3qbVPWEnKIZoRtGUar/ybzowHkYOpn3ager8CA==
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

2026-09-17T10:08:55.452549ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077289
observed df280c4a1b99af77f3b2775f7dba01e0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:55.434241ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077289/manifest.json
observed 6a6d0ab8941d68045c13f3ff18d7a518...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:55.415176ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077289/publication.md
observed 993cab6db692746c39c34b63838905f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:55.397432ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077289/publication.txt
observed fa01c3380a3ee9247300ad2d01a35f8d...
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.