OpenTechnical

OT-2026-000069804

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, vented 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-2026-000069804) never changes.

Identity and time

Publication numberOT-2026-000069804 · never reused
Internal UUID01a0ae91-185f-7541-b46d-cd4cb5f5005c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:19.726120Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000069804
StatusPUBLIC

Content hashes

Canonical text12669c529cd113802165475ba4787572df24f8ee7d5ec1014479c8ee78a6f789
Markdown2c48848cad0edf3f5b4f2a94500da754329920cd443f98b6e15c284ba1803da0
PDF
Publication pageb385e6674bfa0b4650b3747c609cc0f87b92c9be9585b981cb8eed36da027e48
Manifest20e5d9b9ad09e8fac21edea01fa2a22be38d81af16161a50eeaecc0712fdd135

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
SignatureZoq2/p50rxxpals/BQ/x/u9ze5YiWBzeKzrI0XU4OcDU1P7bjBGN+7UjF8UdifBY2MDtuqhPKyrQ8AZtNDt6Dg==
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

2026-09-17T10:26:38.191341ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069804
observed b385e6674bfa0b4650b3747c609cc0f8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.175710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069804/manifest.json
observed 20e5d9b9ad09e8fac21edea01fa2a22b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.159593ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069804/publication.md
observed 2c48848cad0edf3f5b4f2a94500da754...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:26:38.141624ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000069804/publication.txt
observed 12669c529cd113802165475ba4787572...
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.