OpenTechnical

OT-2026-000083249

Publication integrity record

Two cup vacuum gripper, two zone face, two stage ejector, 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-2026-000083249) never changes.

Identity and time

Publication numberOT-2026-000083249 · never reused
Internal UUID01a0ae97-c963-7e1e-ac85-b779d56ceb6a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083249
StatusPUBLIC

Content hashes

Canonical textf933006e558e662e946593048f0506cf3badf4ad29f59c99d3efe6307a376fa3
Markdown0920ca2d5cbc61ff748ad530ed434ee81133b4098a36bb1bae0e26c63fd8d9cb
PDF
Publication paged3e660484c67f92056ae2427ccae59edfb74158623fcbc39ad910216afae1beb
Manifest9b327db440231c4e913782172df79c398d8a0543524e79bb2503cfc4bbdb4145

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
SignatureLd5kYCUtOVAvxJCLyuC5JpAkBbniDSr2wOgtJQVNY8cUzVLhr0VYg3ll0nJuGTldIkhCKBajcW8FR7CH4S9VDA==
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

2026-09-17T09:01:14.840090ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083249
observed d3e660484c67f92056ae2427ccae59ed...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:14.821472ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083249/manifest.json
observed 9b327db440231c4e913782172df79c39...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:14.680712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083249/publication.md
observed 0920ca2d5cbc61ff748ad530ed434ee8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:14.659410ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083249/publication.txt
observed f933006e558e662e946593048f0506cf...
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.