OpenTechnical

OT-2026-000042505

Publication integrity record

Four cup vacuum gripper, four outlet manifold, common isolation valve, single stage ejector, 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-2026-000042505) never changes.

Identity and time

Publication numberOT-2026-000042505 · never reused
Internal UUID01a0ae7a-c0cd-7eac-9f13-e2ea99767c1f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042505
StatusPUBLIC

Content hashes

Canonical text6ae38bf746fa296ad34ac1c9490879f2ddc56b8f08af972fa09c96aec050bcbb
Markdowne03ce8e2bbc3a491c7a01c9a137f87399f9c3b00b8f05dbeb1624cfbdea28b34
PDF
Publication page74af9963195eac147b7fff13743a5efdce8dbf90930074309c27e678a9cdd406
Manifestb02b4da9f41dad3ce33353fba6de40d1e97e8a7be8c1a5a9f58d414b684e9d93

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
SignaturemnRQxF6GS1DlSOWQu7fe6EjuMoy+ohK5+h52mwKYWhWoOGQvuwcJlYZOdvKoLLUsDTlvf1/htvqw1W2OtpPbAw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:14:04.948043ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042505
observed 74af9963195eac147b7fff13743a5efd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.926987ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042505/manifest.json
observed b02b4da9f41dad3ce33353fba6de40d1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.908541ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042505/publication.md
observed e03ce8e2bbc3a491c7a01c9a137f8739...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:04.887403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042505/publication.txt
observed 6ae38bf746fa296ad34ac1c9490879f2...
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.