OpenTechnical

OT-2026-000085730

Publication integrity record

Three bellows 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-2026-000085730) never changes.

Identity and time

Publication numberOT-2026-000085730 · never reused
Internal UUID01a0ae99-aaae-7eb8-8fae-9a0e9a62caef · 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-2026-000085730
StatusPUBLIC

Content hashes

Canonical text03a2c209046e9af257639d63fa4fdbc867c2eb2210e6f8a8de3d100411d5795a
Markdown4ccba7b9b31feb8fc7f86dd4625158c13bdb4f805e4d0ebfac2a86f2335917c9
PDF
Publication pageedb0c75665432902382f51049aa407e763b405554f92de38f4cdaad52fcb7c17
Manifest6e7fbaa07009e1494cd9a1a9659ed9975104576bb4a9135ef3ee01c68d5fd951

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
Signature3UxdMKHUU96JDwUP8KokS5VV9uR+I7OA8ExKG0PmUrQhU3gpEVJNUMMzSb3AkXxx+0/IHQOZAtUyX2mY5oHvAA==
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

2026-09-17T09:54:38.551860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085730
observed edb0c75665432902382f51049aa407e7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.532449ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085730/manifest.json
observed 6e7fbaa07009e1494cd9a1a9659ed997...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.513245ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085730/publication.md
observed 4ccba7b9b31feb8fc7f86dd4625158c1...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:54:38.492878ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085730/publication.txt
observed 03a2c209046e9af257639d63fa4fdbc8...
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.