OpenTechnical

OT-2026-000011996

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, pulsed blow-off 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-2026-000011996) never changes.

Identity and time

Publication numberOT-2026-000011996 · never reused
Internal UUID01a0ae6d-1943-7546-a342-62e4d04cf2b9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:00.631271Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000011996
StatusPUBLIC

Content hashes

Canonical texta008b015d97331c8879c2ffa38791509c65e3e0b237e97cf251705488d9b963d
Markdown0e9e4ee57131482066690b02b482b6ada03698c210921f5ec30a1c4556af4d7c
PDF
Publication page6260aa363d050f4cce6b85a75ef5d4df93549f9f036a9fb4054b2667cc196318
Manifest339de5c1e01e921f79bb4acebe68e9a78095e51534abe5c0ecd8e340e05f0257

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
SignatureDNZEFtMqqwIb7TQn5MUt3gto/W3plXrGGmLM2xIMvJLzewAR5zm9hieCAT6cun/uyGp6LD97yMtu9N9fg6RYCA==
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

2026-09-17T12:12:51.551971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011996
observed 6260aa363d050f4cce6b85a75ef5d4df...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:51.533586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011996/manifest.json
observed 339de5c1e01e921f79bb4acebe68e9a7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:51.515009ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011996/publication.md
observed 0e9e4ee57131482066690b02b482b6ad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:12:51.495511ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000011996/publication.txt
observed a008b015d97331c8879c2ffa38791509...
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.