OpenTechnical

OT-2026-000071730

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, pump 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-2026-000071730) never changes.

Identity and time

Publication numberOT-2026-000071730 · never reused
Internal UUID01a0ae92-1e91-786d-a2ee-51c854f0ecfc · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:26.841552Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071730
StatusPUBLIC

Content hashes

Canonical text7c0b27991f08d27d90dc7c467d55efd5e39b6ad216bad452a0e8bd0fbc18c633
Markdown5e255b42e3326392e97985c15ecb2c6b16960e6b8cb2f169d33b7c6eb48247c9
PDF
Publication pagef260bfa9ca1e7574e538fdd3de1409296d2648ad01f6b5ac96a294ae59813219
Manifest642ce36a685478ccd5e645fcfdc68b0839245b0ce3cce607eed2ef2a54971d34

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
SignatureTuZnTzXM5b5qR8pCjPFECP79u6D4JxlMNCZBOidnE0rh85ppW/JZWQnm/9/+3pFoQIINyF2j+wrSzHVXA5+pCw==
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

2026-09-17T10:23:53.133621ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071730
observed f260bfa9ca1e7574e538fdd3de140929...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:53.113030ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071730/manifest.json
observed 642ce36a685478ccd5e645fcfdc68b08...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:53.095586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071730/publication.md
observed 5e255b42e3326392e97985c15ecb2c6b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:23:53.078148ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071730/publication.txt
observed 7c0b27991f08d27d90dc7c467d55efd5...
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.