OpenTechnical

OT-2026-000079674

Publication integrity record

Single bellows cup vacuum gripper, plant vacuum fed, supply line pressure sensor, vented 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-2026-000079674) never changes.

Identity and time

Publication numberOT-2026-000079674 · never reused
Internal UUID01a0ae96-4375-76fb-b3a6-d2c9099ec00d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:58.480954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000079674
StatusPUBLIC

Content hashes

Canonical text036ad2ca48a7d11d94f88124cbf0e347c7005426c5570e6358312ec3e9de1fa4
Markdownb30c987d6b971617e9e054bbbe8f23a3a3f016386574efae79fee7967db570d3
PDF
Publication page151bb7615d93f6823fac381e4a7d73a5b70abb691adccd58079a983e28c89ed6
Manifest611c28aa5182fa0bb54194419447a344d515ee160b76c56b18e2516d114de38c

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
Signatureg7MMF8UMB10fUB/BO4nTd/JDSimUr7PD7v033L9BKxge2GQa5Qm126KkNKvlhHgOnmMdgYgM/QFDIU2JDIhtBA==
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

2026-09-17T10:03:26.970182ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079674
observed 151bb7615d93f6823fac381e4a7d73a5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.952017ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079674/manifest.json
observed 611c28aa5182fa0bb54194419447a344...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.934205ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079674/publication.md
observed b30c987d6b971617e9e054bbbe8f23a3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:03:26.916397ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000079674/publication.txt
observed 036ad2ca48a7d11d94f88124cbf0e347...
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.