OpenTechnical

OT-2026-000042768

Publication integrity record

Six bellows cup vacuum gripper, six outlet manifold, common isolation valve, pump fed, pulsed blow-off after 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-2026-000042768) never changes.

Identity and time

Publication numberOT-2026-000042768 · never reused
Internal UUID01a0ae7a-c0d0-711e-b164-496a8dd39787 · 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-2026-000042768
StatusPUBLIC

Content hashes

Canonical text3b69955acbf749a7644fa6ac9c52780cffce66a92513a328749574e0390384b7
Markdown21ff65eb539843a9c476275245a41a77ad2d67413f892786ba334ffd64ed8586
PDF
Publication page2a84009c438040b42f6b20c8c5afda8fc552c2f085de31a50f937143e8cb7346
Manifest04d549eb0f1fc5d5350e229ba06ffc1d2b6b329b930563e2c08693a0642b44c8

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
SignaturezQO0YVWMfAlvwq/RwfDmyXOaYWA4wF0kkt6EUXXZEYIoHujSJOrRPL5+gJHiiPWHtZCtU6bQJzGhel6qYfZYDA==
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

2026-09-17T11:15:13.566910ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042768
observed 2a84009c438040b42f6b20c8c5afda8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:13.549187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042768/manifest.json
observed 04d549eb0f1fc5d5350e229ba06ffc1d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:13.529850ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042768/publication.md
observed 21ff65eb539843a9c476275245a41a77...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:13.512472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042768/publication.txt
observed 3b69955acbf749a7644fa6ac9c52780c...
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.