OpenTechnical

OT-2026-000091405

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, two stage ejector, pressure sensor per zone, sustained 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-2026-000091405) never changes.

Identity and time

Publication numberOT-2026-000091405 · never reused
Internal UUID01a0ae9c-f16d-7505-ad7b-bd93f802afc9 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091405
StatusPUBLIC

Content hashes

Canonical text9614c1bfb81e0e08c54cc3d6a068296ee1d107418723f03a73c2ef48c605e9ba
Markdown1494008a95e2f13c0ef3f8a99380ab68a4baba9a7abe2e87415ee609e0571563
PDF
Publication page4e6b0c3bdae175e2fbb3f0d15cced3423b163867d694135792993f5763ff3887
Manifest82e58dda684ef262810284a2106d1188f0d4ed6a99effb13bdc4fcbe39209226

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
Signature/H6krpvAcBC9hxX31pV70asFpPjvnQe69dIMI9XN5H+sroAYpGcYpJJeN1qFO+EHXS6OBYO2Zf40qNSeFeTfCQ==
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

2026-09-17T09:43:38.217550ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091405
observed 4e6b0c3bdae175e2fbb3f0d15cced342...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:38.197461ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091405/manifest.json
observed 82e58dda684ef262810284a2106d1188...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:38.002131ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091405/publication.md
observed 1494008a95e2f13c0ef3f8a99380ab68...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:37.983224ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091405/publication.txt
observed 9614c1bfb81e0e08c54cc3d6a068296e...
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.