OpenTechnical

OT-2026-000085742

Publication integrity record

Three cup vacuum gripper, three zone face, plant vacuum fed, 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-2026-000085742) never changes.

Identity and time

Publication numberOT-2026-000085742 · never reused
Internal UUID01a0ae99-aaae-70bd-b4fb-e814a0117cc0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085742
StatusPUBLIC

Content hashes

Canonical texta2d864ced442faf4dd161a744651c0725dc4c861570760fc3b4ec027a6d90f51
Markdown779b7d132bbcd812eddb39b40d722502e81c15a88778488f7a5789ab5ee14aec
PDF
Publication page3c9ff3c349454fa214cf2ca47d2c9ef0a2c47e1740990516439db1db3003a083
Manifest01714d9761bd773f508642d70c04729018b86a2b022aee8b601a05bf9fb1b696

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
SignatureZMcQ+Q4M9Vs/0/d++DjqEL4THplzAMJ1dlbUr76uSUfS4zJW7bBQ2NW/ncqA51wW/sgVIQvly3x62VZu4mQzDA==
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

2026-09-17T09:54:39.470941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085742
observed 3c9ff3c349454fa214cf2ca47d2c9ef0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:39.450904ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085742/manifest.json
observed 01714d9761bd773f508642d70c047290...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:39.431672ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085742/publication.md
observed 779b7d132bbcd812eddb39b40d722502...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:39.412601ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085742/publication.txt
observed a2d864ced442faf4dd161a744651c072...
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.