OpenTechnical

OT-2026-000081689

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, three 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-2026-000081689) never changes.

Identity and time

Publication numberOT-2026-000081689 · never reused
Internal UUID01a0ae97-0f73-7d3a-a0b0-c87988040386 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081689
StatusPUBLIC

Content hashes

Canonical text8bed2c4ec9450d7bf43d7b11bef1fb693a403a68f63ef84c607a7ed61c001544
Markdownbac08fac57560dbcafca1a163b676d2938ae1403d1f5aad598bff75169187705
PDF
Publication paged4af6111c3c5cabc34cab988087e945f282dd1609ba6e762ce91ea56001bc61d
Manifesta9b6e3fb5ddced0965aa469a79e0cfeeb96d3025fa6428f6356fc4868f6371d8

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
SignatureKrtKxEgW/t6cQzZqlNlxAXi7tKgcdxR6j3Nd/fUJSxPr7PORIY66fFJzUR5t1owVsgtNfFTTpvhV3UNpVkBrCA==
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

2026-09-17T09:59:45.247637ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081689
observed d4af6111c3c5cabc34cab988087e945f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:45.231120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081689/manifest.json
observed a9b6e3fb5ddced0965aa469a79e0cfee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:45.211291ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081689/publication.md
observed bac08fac57560dbcafca1a163b676d29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:45.193309ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081689/publication.txt
observed 8bed2c4ec9450d7bf43d7b11bef1fb69...
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.