OpenTechnical

OT-2026-000015496

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-2026-000015496) never changes.

Identity and time

Publication numberOT-2026-000015496 · never reused
Internal UUID01a0ae6d-ef4a-7ac8-a4a4-bb8506e3d889 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015496
StatusPUBLIC

Content hashes

Canonical textdb8169bb6adb5f3f84f579d8cc93b030798ff79ab309f373a88b597c9f7f1400
Markdowncb992bf0c249555fdb3af2b3d0a460571a6b2729e1a23db0357c61b9e1ae573f
PDF
Publication page81bd3499761ed0244c2befbe57e285b9c2304bda8e02af1a078daf17ffe94fcc
Manifesteacd7b7f3ad17f62ecbd2b07602750db427ccc4a4b2350647559d1d17ea9cddc

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
SignatureuWkZXIds7e/LlcqPws6Vz+EyU2iRrfV2n6R24MtwL/QQgGuxh3w+YJAyx1A+shYySkbgGA/7CX56kCty6HSjDw==
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

2026-09-17T12:06:15.711187ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015496
observed 81bd3499761ed0244c2befbe57e285b9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.692117ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015496/manifest.json
observed eacd7b7f3ad17f62ecbd2b07602750db...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.674752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015496/publication.md
observed cb992bf0c249555fdb3af2b3d0a46057...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:06:15.656760ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015496/publication.txt
observed db8169bb6adb5f3f84f579d8cc93b030...
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.