OpenTechnical

OT-2026-000073742

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000073742) never changes.

Identity and time

Publication numberOT-2026-000073742 · never reused
Internal UUID01a0ae93-2b8d-7f88-a29e-ebd45bf9e13c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073742
StatusPUBLIC

Content hashes

Canonical textf24614edded5d5965f6b7470b079c493f9b968bd909878e06f388ba396e38908
Markdown94ac12ed8f5b7c08c413042c8e9742479ba1ce4a53d42a02649ee222dd691163
PDF
Publication page5786dc1a08a32d74b8f2406f473a1a45229d4df2025f5e56b017cc4dc71ce376
Manifest9d1088eeb5af9b7eca8a324e215f02f6117c63301e13cc9a3f8d15d24e44b9c4

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
Signaturew3/7tQLD5tTIrUmEy8nnA1H7L5ToCP03g0aGwiXlK6tVRlFS0DEKdMioN4UhDggAZt12b7HyJuIAvNVIOXEXDA==
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

2026-09-17T10:19:49.519153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073742
observed 5786dc1a08a32d74b8f2406f473a1a45...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.396969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073742/manifest.json
observed 9d1088eeb5af9b7eca8a324e215f02f6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.377956ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073742/publication.md
observed 94ac12ed8f5b7c08c413042c8e974247...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:49.359082ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073742/publication.txt
observed f24614edded5d5965f6b7470b079c493...
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.